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Biography
Prior to joining Baylor Family Medicine at Wylie, Dr. Mercer was the Associate Program Director for the Residency Program at Baylor Family Health Center at Garland. |
Ages Seen |
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Newborns (0-28 days) |
Infants and Toddlers (ages 0-2) |
Children (ages 3-11) |
Adolescents (ages 12-18) |
Adults |
Geriatrics |
Language(s) Spoken |
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English |
Education |
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Medical School: LSU School of Medicine (1997) |
Medical School: Louisiana State University Health Sciences Center (1997) |
Internship: Family Practice, Eisenhower Army Medical Center (1998) |
Internship: Family Medicine, Eisenhower Army Medical Center (1998) |
Residency: Family Practice, Eisenhower Army Medical Center (2000) |
Residency: Family Medicine, Eisenhower Army Medical Center (2000) |
Certifications |
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Family Medicine- American Board of Family Medicine |
Hospital Affiliations |
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Baylor Scott & White Medical Center - Plano |
Baylor Scott & White Medical Center - Lake Pointe |
Insurances accepted
Baylor Scott & White has established agreements with several types of insurance to ensure your health needs are covered.
Insurance listings are subject to change without prior notice. Please call your physician's office or your health or insurance plan to verify coverage information prior to scheduling your visit or procedure. Not all members participating in contracted networks have "in network" access. In network participation may change from time to time without prior notice. Independent providers (which could include, for example only, anesthesiologists, radiologists, pathologists, emergency medicine physicians, advance practice professionals, and other independent providers of health care services) may deliver part of your care, and such providers may be considered out-of-network on your health and insurance plans even if the Facility may be considered in network. If you desire additional information as to the providers who may be involved in providing your care, you can either ask your treating provider (who may know some of the specialists or groups who could be involved) or you can request a list of Facility-based physician groups by calling the following toll free number: (877) 810-0372. This list is updated annually and is subject to change without prior notice
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Reviews (786) for John Wesley Mercer, MD
averageRating | metric | |
---|---|---|
5.0 | Time Care Provider spent with Patient | |
4.9 | Wait Time at Clinic | |
5.0 | Provider showed concern | |
5.0 | Provider included you in decisions | |
5.0 | Rate provider 0-10 | |
5.0 | Friendliness/Courtesy of Care Provider |
Patient Comments**
5.0 | Feb 12, 2025 | Knowledgeable,professional,caring | |
5.0 | Feb 8, 2025 | Best Dr ever. Listens! Helps! Cheerful! Listens! | |
5.0 | Feb 7, 2025 | Answered all questions and encouraged my progress. | |
5.0 | Feb 6, 2025 | Got right in, the office was very clean, the ladies in the front were nice and helpful. The lady getting my weight was also. The nurse took us to go over charters was great as well. Doctor Mercer came in very professional as always. Asked lots of questions. Noted on our charts. Office was clean. He spent a good amount of time with us. Answered our questions. We are very blessed to have a great Doctor. | |
5.0 | Feb 6, 2025 | Very thorough and friendly | |
5.0 | Feb 6, 2025 | Kind, good listener, makes good recommendations. | |
5.0 | Feb 5, 2025 | Dr Mercer was very easy to speak with. He addressed all of my concerns. | |
5.0 | Feb 5, 2025 | Dr Mercer know me & my medical history ! | |
5.0 | Feb 4, 2025 | He's always so helpful and concerned | |
4.7 | Feb 1, 2025 | Dr Mercer is awesome. | |
5.0 | Feb 1, 2025 | Very understanding provider | |
5.0 | Jan 31, 2025 | He cares and I have gone to him for a long time. | |
5.0 | Jan 31, 2025 | Caring and compassionate! | |
5.0 | Jan 30, 2025 | Perfect, he is my doctor for 17 years. | |
4.4 | Jan 30, 2025 | I have going to Mercer for oodles of years and will continue to do so. | |
5.0 | Jan 29, 2025 | Always happy with this practice. Everyone is always professional, friendly and caring. | |
5.0 | Jan 27, 2025 | He listened well, answered my questions, and was quick to followup with my test results. He gave positive feedback about my results and encouraged me to keep up good health choices. | |
5.0 | Jan 27, 2025 | Dr Mercer is by far one of the best doctors that I have seen in all my 72 years. He takes time to listen and care for your best interests. | |
5.0 | Jan 25, 2025 | Dr Mercer cares about his patients. From the minute he walks in the door to the minute you walk out, he listens to your needs. He administers advice with care. | |
5.0 | Jan 25, 2025 | Dr. Mercer delivers ecellent, attentive care, as always! | |
5.0 | Jan 24, 2025 | Dr. Mercer always asks questions and listens to my concerns. | |
5.0 | Jan 23, 2025 | Dr Mercer is always knowledge and always asks the right questions. He commended me on me lowering my glucose level over the holidays! He is always kind and my biggest cheerleader! My husband who also works with Baylor Heart Hospital says Dr Mercer is one of the best Doctors he knows! | |
5.0 | Jan 23, 2025 | Dr. Mercer is such a great doctor! He listens with empathy and is so kind. | |
5.0 | Jan 22, 2025 | Dr Mercer and his staff were friendly, professional, informative, attentive to my questions and helpful. | |
5.0 | Jan 22, 2025 | Dr. Mercer knows everything about me as a patient and a person. He is in tune with my world and I do not have to spend much time for him to know what is needed. He is just a good dude. | |
5.0 | Jan 22, 2025 | Dr. Mercer is a very caring Dr and listens to my concerns and never makes me feel rushed. | |
5.0 | Jan 22, 2025 | Dr was a big help | |
5.0 | Jan 21, 2025 | Best doctor I ever seen. | |
5.0 | Jan 21, 2025 | Very friendly, and efficient | |
5.0 | Jan 21, 2025 | Very nice | |
5.0 | Jan 19, 2025 | He is completely professional and personable. I could not ask for a better doctor. | |
5.0 | Jan 19, 2025 | All great. | |
4.1 | Jan 17, 2025 | He cares. He listens. | |
5.0 | Jan 16, 2025 | Absolutely love Dr. Mercer. He listens and has the best bedside manner. | |
5.0 | Jan 16, 2025 | Dr mercer cares about me and out of many doctors he is the only one I trust | |
5.0 | Jan 16, 2025 | Dr. Mercer takes time to listen, very thourough | |
5.0 | Jan 16, 2025 | Dr Mercer is always very caring and gives time appropriately. | |
5.0 | Jan 15, 2025 | He listened, asked questions. Which I thought he should know, but glad, just in case things had changed. | |
5.0 | Jan 9, 2025 | I love this office! From the front office staff, the nurses, and the doctors | |
5.0 | Jan 9, 2025 | Dr. Mercer is personable and our family absolutely loves him!! | |
5.0 | Jan 9, 2025 | Listens well and always easy to get an appt | |
5.0 | Jan 9, 2025 | They are so efficient and friendly and care about me every time I go here! From the front office staff to the nurse and doctor!! | |
5.0 | Jan 9, 2025 | I have the best Doctor in the world. He is a great Doctor but a wonderful person | |
5.0 | Jan 7, 2025 | Dr. Mercer always takes time to listen | |
5.0 | Jan 7, 2025 | Friendly caring and professional | |
5.0 | Jan 4, 2025 | Dr Mercer is always caring and thorough in his exams | |
5.0 | Jan 3, 2025 | Always knowledgeable and friendly | |
5.0 | Jan 3, 2025 | Always patient and engaged | |
5.0 | Jan 3, 2025 | He really cares and listens - | |
5.0 | Jan 3, 2025 | Dr Mercier was amazing! | |
5.0 | Jan 3, 2025 | A very competent professional. | |
5.0 | Jan 2, 2025 | Dr Mercer is always thorough and answers all my questions. We discuss options for any issues. | |
5.0 | Jan 2, 2025 | Excellent doctor. Good listener. | |
5.0 | Dec 31, 2024 | He's very thorough, caring, and matter-of-fact advising. | |
4.9 | Dec 31, 2024 | Dr. Mercer treats on a patient by patient, concern by concern basis. He is one of few, who understands my medical concerns and helps me progress forward! | |
5.0 | Dec 30, 2024 | Love Dr Mercer's bedside manner- friendly, informative, patient & knowledgeable. Genuinely cares about his patients. I know he has bad days, we all do, but you never see that from Dr Mercer he's always upbeat, smiling and caring! | |
5.0 | Dec 28, 2024 | Dr Mercer has always been a great Dr for me and my family | |
4.9 | Dec 27, 2024 | Personable and professional. | |
5.0 | Dec 26, 2024 | Great | |
4.3 | Dec 26, 2024 | Dr Mercer always takes time to talk and answer questions. | |
5.0 | Dec 25, 2024 | Great Dr. | |
4.9 | Dec 25, 2024 | He allowed me to see him when I did not have appointment | |
5.0 | Dec 24, 2024 | Everyone is polite, courteous and professional. Everyone is concerned about what concerns you. Met with a smile and always pleasant to talk to. | |
5.0 | Dec 24, 2024 | He saw I was logged in and started the appointment early, which was helpful since I was at work and we were closing soon. He listened to my concern and effectily diagnosed a treatment. | |
5.0 | Dec 22, 2024 | Love Dr Mercer | |
5.0 | Dec 22, 2024 | Best service best Doctor & very friendly staff | |
5.0 | Dec 21, 2024 | Dr Mercer is the best!!!!!! | |
5.0 | Dec 20, 2024 | Excellent communicator and listener! | |
5.0 | Dec 20, 2024 | Dr Mercer certainly puts his focus on his patients. I never feel rushed as is common with many doctor visits. He takes his time to listen, discuss and explain on any topic I bring up. I always look forward to our next appointment. | |
5.0 | Dec 19, 2024 | Always a good experience. I get taking care of by nurses and excellent doctors. | |
5.0 | Dec 18, 2024 | He is friendly and easy to talk to. He provides me with clear answers and advice on my concerns. | |
5.0 | Dec 18, 2024 | Dr Mercer is great! He knows me and my family ! | |
5.0 | Dec 17, 2024 | Dr.Mercer is an excellent physician and the staff is very good. | |
5.0 | Dec 14, 2024 | Dr Mercer always listens and without judgement. I drive over an hour to see him. He's just that good! Kind, helpful but professional. So glad to have him as my doctor. | |
5.0 | Dec 14, 2024 | He is always very available to the patient. | |
4.8 | Dec 14, 2024 | Listening caring and concerned provider | |
5.0 | Dec 13, 2024 | Got me in early without an appointment and took care of me quickly and got me in for a CT in record time. Really helped me and called me later in the day with results and feedback. | |
5.0 | Dec 11, 2024 | Excellent from check in to check out. | |
5.0 | Dec 11, 2024 | We all love Dr. Mercer! | |
4.8 | Dec 11, 2024 | He is extremely knowledgeable and personal while still being professional. I have been seeing him for years and will continue to do so. | |
5.0 | Dec 9, 2024 | Dr Mercer takes the time to listen to all your concerns. He is our family doctor and always ask how all the family is doing. He definitely makes you feel like you are more than just another patient. | |
4.2 | Dec 7, 2024 | He's a new provider for me, still building a relationship. | |
5.0 | Dec 5, 2024 | Always a great pleasure! | |
5.0 | Dec 5, 2024 | Dr Mercer is the best family doctor we have ever had ! | |
5.0 | Dec 5, 2024 | He is so caring | |
5.0 | Dec 4, 2024 | Very personable and efficient. | |
5.0 | Nov 29, 2024 | Dr. Mercer is the BEST Dr. That BS&W has. He is always very efficient and very knowledgeable . He is very personable. | |
5.0 | Nov 28, 2024 | He continues to provide excellent care for me | |
5.0 | Nov 27, 2024 | He has been my doctor for a long time and he is the best! | |
5.0 | Nov 27, 2024 | Dr. Mercer takes the time to listen and get to know his patients. I never feel like just a number. | |
5.0 | Nov 27, 2024 | Great doctor! | |
5.0 | Nov 23, 2024 | Very attentive and informative. | |
4.9 | Nov 22, 2024 | John Mercer is a very kind and caring doctor. We really appreciate the time he takes to try to help us with our illnesses. | |
5.0 | Nov 21, 2024 | Dr Mercer is always attentive and listens to me. He is thorough yet very practical. | |
5.0 | Nov 21, 2024 | John is simply easy to talk to and provides pertinent and practical information. | |
5.0 | Nov 21, 2024 | Thoughtful, friendly, good listener , helps patient evaluate options. | |
5.0 | Nov 21, 2024 | He is so professional and knowledgeable, yet personal and compassionate! | |
4.9 | Nov 20, 2024 | Pleasant to talk to. Sounds considerate. | |
5.0 | Nov 20, 2024 | The best Dr ever !! | |
5.0 | Nov 19, 2024 | Good care provider | |
5.0 | Nov 17, 2024 | He listens and is easy to talk to. | |
5.0 | Nov 14, 2024 | I have been going to Dr. Mercer for about 19 years. Not that I like going to Dr, but his office is great from sign in to check out. Dr. Mercer is very personable in talking with you. | |
5.0 | Nov 14, 2024 | He awesome and very enjoyable to engage with. | |
5.0 | Nov 14, 2024 | He is professional, knowledgeable, and thorough. | |
5.0 | Nov 14, 2024 | Dr Mercer is always the best | |
5.0 | Nov 13, 2024 | Dr Mercer is the best I've ever had | |
5.0 | Nov 13, 2024 | He shows genuine care and attention to his patients. He listens to your concerns and does his best to help you. Dr. Mercer is the BEST!!! | |
5.0 | Nov 12, 2024 | Best doctor I've had in years. He is very kind and makes me feel safe. | |
5.0 | Nov 12, 2024 | Very professional and caring | |
5.0 | Nov 9, 2024 | He is a down to earth Dr, he listens, and you can tell he Cares A+ | |
5.0 | Nov 9, 2024 | There is none better than Dr. Mercer and his staff | |
5.0 | Nov 9, 2024 | Very good | |
5.0 | Nov 7, 2024 | Took his time and answered all my questions. | |
5.0 | Nov 7, 2024 | Dr Mercer listens and cares, really appreciate him taking his time with me as a patient every single time I've visited. | |
5.0 | Nov 7, 2024 | Stress free | |
5.0 | Nov 6, 2024 | Cares the most! | |
5.0 | Nov 5, 2024 | Wonderful caring and kind doctor. Always helps you with all concerns. | |
5.0 | Nov 4, 2024 | Shows genuine care for my health as well as my wife and son. Dr Mercer and his team are fantastic | |
5.0 | Nov 3, 2024 | We have always been with Dr. Mercer and he has been the best provider ever. | |
5.0 | Nov 2, 2024 | He is always patient and understanding of any issues I may have. | |
5.0 | Nov 2, 2024 | Comforting, patient, thorough. | |
5.0 | Nov 1, 2024 | Dr Mercer is wonderful, I always leave feeling better than I came | |
4.8 | Nov 1, 2024 | Knowledgeable, personal, caring, friendly. | |
5.0 | Oct 31, 2024 | Dr. Mercer listens to my concerns and provides solutions. | |
5.0 | Oct 31, 2024 | Dr. Mercer is very helpful and great at explaining things at a level that's easy to understand. | |
5.0 | Oct 30, 2024 | Dr. Mercer was engaged with me and you can tell he truly cares.He was 10 minutes early, and that was amazing!The quality of the video call was clear, audio clear, no lag, no interruptions. That was the easiest online appointment!I was able to check in, pay and received the link for the appointment, there were no issues. Thank you!! | |
5.0 | Oct 30, 2024 | I've been seeing Dr. Mercer for almost 20 years. He is the best Doctor I've had in my life. | |
5.0 | Oct 29, 2024 | Dr. Mercer and his staff are always kind and professional. | |
5.0 | Oct 27, 2024 | Awesome | |
5.0 | Oct 27, 2024 | I have been seeing Dr. Mercer for almost twenty years. He is a good doctor who takes time to understand her patients. | |
5.0 | Oct 26, 2024 | We have been going to Dr. Mercer for probably 20 years. He is the best doctor in Wylie - maybe in Texas! | |
5.0 | Oct 26, 2024 | Dr. Mercer listened and addressed all of my concerns. | |
5.0 | Oct 26, 2024 | As always, great service! | |
5.0 | Oct 24, 2024 | Dr. Mercer provides excellent care and is attentive to my needs. | |
5.0 | Oct 24, 2024 | Dr. Mercer is knowledgeble, caring and personable everly time I see him. | |
5.0 | Oct 24, 2024 | Dr. Mercer is not judgmental about any issue I want to discuss with him. He is patient and very understanding of life events. He's the best. | |
5.0 | Oct 24, 2024 | He listens and is nonjudgmental, answers questions and provides suggestions. | |
5.0 | Oct 22, 2024 | Been our family doctor for long time. Trust him. | |
5.0 | Oct 18, 2024 | Dr. Mercer really cares about his patients. He is a fantastic doctor. We feel lucky to have him as our family doctor. | |
5.0 | Oct 18, 2024 | I'm very thankful I found Dr Mercer. He's very professional. He cares about everything I'm there for. I feel totally comfortable there and know I can trust what he tells me. He's always shown he's there to help me. Just so thankful to have found him. | |
4.8 | Oct 18, 2024 | Dr. Mercer takes the time to listen to what I say, asks me questions to clarify, and offers answers. He knows what I am trying to say or ask by digging deeper than the surface comment by me. | |
5.0 | Oct 17, 2024 | Dr. Mercer show compassionate and allows questions and shows he cares. | |
5.0 | Oct 17, 2024 | Dr. Mercer/Staff continue to show genuine concern for my well-being and the concern for my family. | |
5.0 | Oct 17, 2024 | Dr. And Mercer has always been attentive and takes time to listen to and address my concerns. | |
5.0 | Oct 16, 2024 | Dr. Mercer is not my primary care doctor but I wish he was. I'm 76, so seeing an experienced doctor seems more relatable, although he's a young mid 50's, I guess. He's personable, thoughtful and calm. Explains everything clearly. | |
5.0 | Oct 15, 2024 | Fast, friendly, relatable. Never feels rushed. Best doc I've ever seen. | |
4.8 | Oct 11, 2024 | He's the best doctor you have at this location. I've seen the other two in the past and they're not worth spit. | |
5.0 | Oct 11, 2024 | Care given was professional, friendly and comprehensive. | |
5.0 | Oct 11, 2024 | Dr. Mercer is the best, and I never want to see another doctor. :) | |
5.0 | Oct 10, 2024 | Dr Mercer listens to whatever I am there for. | |
5.0 | Oct 9, 2024 | Dr John Mercer is the best. | |
5.0 | Oct 9, 2024 | Dr Mercer and his staff you can trust | |
5.0 | Oct 9, 2024 | Great patient experience. The employees are always friendly. My doctor is excellent. | |
5.0 | Oct 9, 2024 | Dr Mercer is the ONLY PCP I would ever see. He is phenomenal. | |
5.0 | Oct 8, 2024 | He takes the time to listen and answer questions. He is very kind and compassionate. | |
5.0 | Oct 8, 2024 | He is the best. Makes me feel relaxed. | |
5.0 | Oct 8, 2024 | All our family and many friends see Dr Mercer. Our family has been with him almost since we moved to Texas! We all love and respect him | |
5.0 | Oct 8, 2024 | Takes time to listen. Amazing and always knows me personally and medically | |
5.0 | Oct 6, 2024 | Very caring and professional | |
5.0 | Oct 5, 2024 | Dr. Mercer really cares about you and how you are feeling, or how he can help you to feel better. | |
5.0 | Oct 3, 2024 | Dr Mercer is the best . | |
5.0 | Oct 3, 2024 | Friendly and non stressful | |
5.0 | Sep 29, 2024 | He is kind, empathetic and easy to talk with. | |
5.0 | Sep 28, 2024 | He is very nice to both my husband and I and listens to all our problems. | |
5.0 | Sep 28, 2024 | Our family has been seeing Dr. Mercer for years and wouldn't trust our healthcare to anyone else. | |
5.0 | Sep 27, 2024 | Caring, knowledgeable, never in a hurry. | |
5.0 | Sep 27, 2024 | Dr. Mercer and his staff listens to all of my questions and answers them and I really enjoy them | |
5.0 | Sep 26, 2024 | Dr Mercer is truly great to work with and extremely easy to be open with on any medical/injury issues I've been dealing with. | |
5.0 | Sep 24, 2024 | Met my expectations | |
5.0 | Sep 24, 2024 | Dr. Mercer is the best! He thoughtfully answered all my questions. | |
4.8 | Sep 24, 2024 | Makes you feel comfortable, explains what's going on, cares about patients' wellbeing | |
5.0 | Sep 24, 2024 | Professional and Emphatic | |
5.0 | Sep 20, 2024 | Dr. Mercer is awesome. He's calm and understanding. He's conversational and not judgmental. | |
5.0 | Sep 20, 2024 | Dr. Mercer is always wonderful. I have recommended people see him or other doctors in the practice. | |
5.0 | Sep 18, 2024 | Always great visit | |
5.0 | Sep 17, 2024 | Best doctor!!! So thankful for him and his awesome team! | |
5.0 | Sep 14, 2024 | Dr Mercer is compassionate and thorough | |
5.0 | Sep 14, 2024 | Have used Dr. Mercer for many years and he is knowledgeable, polite and communicates well. | |
5.0 | Sep 14, 2024 | Professional, thorough and listens to concerns and current health care issues. | |
5.0 | Sep 14, 2024 | Quick and easy appt for my physical | |
5.0 | Sep 14, 2024 | Professional, relatable, knowledgeable, fun to talk to, real | |
5.0 | Sep 13, 2024 | My family and I have been seeing Dr Mercer for 18 years at this location. We love Dr Mercer. He is a kind, caring and compassionate doctor. | |
5.0 | Sep 13, 2024 | Great results and quick | |
5.0 | Sep 13, 2024 | Dr. Mercer is awesome, all my family see him. He listens and is very knowledgable. | |
5.0 | Sep 12, 2024 | He's very thorough and personable. | |
5.0 | Sep 12, 2024 | Dr Mercer is very thorough. He takes time to answer questions. He saw me when I didn't have an appointment due to the severity of my pain. | |
4.8 | Sep 11, 2024 | Dr. Mercer listens and doesn't make you feel rushed. | |
5.0 | Sep 10, 2024 | Dr. Mercer is very friendly, he takes the time to listen to all of my questions, and provides great feedback. | |
5.0 | Sep 10, 2024 | Dr. Mercer is one of the best doctors I have ever had and I've had my fair share. He is caring and accommodating. You can tell he loves his job and his patience! | |
5.0 | Sep 7, 2024 | Knowledgeable, personal | |
5.0 | Sep 6, 2024 | Always friendly, capable, knowledgeable, and professional. | |
5.0 | Sep 5, 2024 | Puts one at ease and is caring and informative | |
5.0 | Sep 5, 2024 | GREAT | |
5.0 | Sep 4, 2024 | Dr. Mercer was very attentive and made me feel heard and understood. All my questions were answered and I left my appointment knowing I'm in great care and on the road to recovery. | |
5.0 | Sep 2, 2024 | Listen to patient and provides feedback. | |
5.0 | Aug 31, 2024 | He is efficient, caring, and very knowledgeableI'm Very comfortable with his knowledge of any issues that I have | |
5.0 | Aug 30, 2024 | Very Professional and Caring. | |
5.0 | Aug 30, 2024 | He's excellent with all my medical needs. His staff & office are always great | |
5.0 | Aug 29, 2024 | Really listens and takes the time to discuss your concerns. | |
5.0 | Aug 29, 2024 | On time! Kind, courteous, listens, knowledgeable | |
5.0 | Aug 28, 2024 | Takes his time to ask questions and never in a hurry. | |
5.0 | Aug 27, 2024 | He is the best Dr. I drive 80 miles one way approx to go to him. He has been my Dr for about 10 yrs. I totally trust him on any medical problem I have. He has been my GP for 2 knee surgeries, shoulder surgery, heart surgery, and all the colds, sugar levels, etc I have had. I have had only good outcomes because of his medical care & advice. |
*The patient rating score is an average of all responses to physician-related questions on our nationally recognized Press Ganey Patient Satisfaction Survey.
**Patient comments are gathered from our Press Ganey Patient Satisfaction Survey and are displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.