Checks carefully for possible concerns and treats as needed.
5.0

Locations of Mark David Thieberg, MD

Biography


Dr. Thieberg was nominated for D Magazine's Best Docs in 2024, 2023, 2020, 2019, 2018, 2010, 2007, 2006, 2004.


Dr. Thieberg has been named a Best Doctor in Collin ... in 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2011.

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Ages Seen
Adolescents (ages 12-18)
Adults
Geriatrics
Language(s) Spoken
English
Education
Medical School: Mount Sinai School of Medicine (1990)
Internship: Internal Medicine, Northwestern University / McGaw Medical Center GME (1991)
Internship: Internal Medicine (Preliminary Medicine), Northwestern Memorial Hospital (1991)
Medical School: Northwestern Memorial Hospital (1991)
Residency: Dermatology, University of IA Hospitals & Clinics (1994)
Medical School: University of IA Hospitals & Clinics (1994)
Certifications
Dermatology- American Board of Dermatology
Hospital Affiliations
Baylor Scott & White Medical Center - Plano

Insurances accepted

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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 (1037) for Mark David Thieberg, MD

Overall
4.9*
averageRating metric
4.8
Wait Time at Clinic
4.9
Time Care Provider spent with Patient
4.9
Provider showed concern
4.9
Provider included you in decisions
4.9
Rate provider 0-10
4.9
Friendliness/Courtesy of Care Provider

Patient Comments**

5.0 Apr 15, 2025 Checks carefully for possible concerns and treats as needed.
5.0 Apr 15, 2025 He is a great communicator and offers options in treatment. I like choices.
5.0 Apr 13, 2025 When I am examined by Dr. Thieberg I know that I have been seen by the best. His staff members are couteous and professional. The experienceis could be no better.
5.0 Apr 12, 2025 Very thorough!!!
4.2 Apr 11, 2025 I've been seeing Dr. Theiberg for many years. He is consistent and professional.
5.0 Apr 11, 2025 Always very professional and thorough.
5.0 Apr 11, 2025 Did surgery on my forearm for basil cell carcinoma. I'm very pleased with the results. You have to search for the scar.
5.0 Apr 11, 2025 Dr T is very thorough and very efficient. His office functions efficiently as well.
5.0 Apr 9, 2025 Been seeing him for 25+ years. He is a great provider which is why I drive 50 miles each way to see him.
5.0 Apr 9, 2025 He has been my Dr for many years and knows me and my health issues.
5.0 Apr 8, 2025 Great
5.0 Apr 7, 2025 Professional and courteous. Excellent treatment for issues that presented. Timely but sufficient time for the visit.
5.0 Apr 6, 2025 Best explanations, great listener, and kind touch during procedures. Helps me not be afraid of needles
5.0 Apr 5, 2025 Dr Thieberg is excellent. He listens and cares and is very knowledgeable. I would recommend him to anyone.
5.0 Apr 5, 2025 Excellent
5.0 Apr 5, 2025 Dr. Thieberg is th best dermatologist we have ever seen.
5.0 Apr 5, 2025 Been seeing Dr. Thieberg for years! Very kind and thoughtful doctor, that spends time listening to my concerns!
5.0 Apr 5, 2025 Even with no power in the building, everything went smoothly !
5.0 Apr 5, 2025 Dr. Theiberg & his staff are very efficient , caring, & takes his time to listen. All very important to me.
5.0 Apr 4, 2025 Efficient Knowledgeable PoliteConcerned
5.0 Apr 3, 2025 He does a good job every time
5.0 Apr 3, 2025 Dr. Thieberg is always very attentive and explains very well. Also eases our concerns.
4.9 Apr 2, 2025 Affable and competent.
5.0 Apr 2, 2025 He performed a thorough exam in a professional manner - the t was just my annual exam with no problem to address.
4.7 Apr 1, 2025 Communicates well
4.8 Mar 31, 2025 Excellent
5.0 Mar 31, 2025 I have been a patient of Dr.Thieberg's for many years and cannot think of choosing anyone else for his expertise is always demonstrated every time I see him.
5.0 Mar 28, 2025 This provider is very thorough and knowledgeable, I do not see myself ever switching.
5.0 Mar 27, 2025 He's thorough and explains well my skin conditions and any of his procedures and preventive measures I can take myself.
5.0 Mar 27, 2025 Dedicated and committed to his patients.
4.6 Mar 22, 2025 Excellent care provider.
5.0 Mar 22, 2025 Dr Thieberg is an excellent care giver. He explains things well, takes the necessary time to communicate what needs to be done, and Is very skilled at his profession. I have the highest regard for Dr Thieberg and have recommended him to several friends. He Is five stars !!!
5.0 Mar 21, 2025 Very kind, thorough and accomodating.
5.0 Mar 21, 2025 Great doctor.
5.0 Mar 21, 2025 Trusted source for skincare needs.
5.0 Mar 19, 2025 I am a long term patient. I am very pleased with all personnel of provider. They are all courteous and professional and personable
5.0 Mar 19, 2025 Dr. Thieburg is very thorough and understanding.
5.0 Mar 18, 2025 Knowledgeable..kindPatient
5.0 Mar 18, 2025 Very thorough. Answered all of my questions. Didn't rush through appointment.
5.0 Mar 16, 2025 Best care. I trust him
5.0 Mar 14, 2025 Always good, always professional.
5.0 Mar 14, 2025 Dr Thieburg is very good and cares about the patients
5.0 Mar 14, 2025 Excellent
4.8 Mar 13, 2025 Dr T gets the job done very efficiently and with minimal side effects (pain and bleeding.)
5.0 Mar 13, 2025 Dr. Thieberg is an amazing Physician. I've suffered with allergies, eczema, along with a little anxiety. My skin is doing great!
4.5 Mar 13, 2025 Smooth process, attentive doctor (albeit, clearly too busy)
4.8 Mar 13, 2025 Dr. Thieberg always does a thorough exam and also addresses any concerns I have . I have been going to him for many years.His front office staff and his assistant are friendly.
5.0 Mar 12, 2025 Dr. Thieberg has diagnosed my skin cancers in time to be completely excised.
5.0 Mar 12, 2025 Dr. Thieberg and his staff are exceptional. I have been his patient for many years.
5.0 Mar 11, 2025 Thorough. Explained what he would be doing and why it's necessary.
5.0 Mar 10, 2025 He gives me the opportunity to ask questions and provides me with compassionate care
5.0 Mar 8, 2025 The doctor is very professional and communicates extremely well. I appreciate his thoroughness when he is checking my skin and the condition of the skin. He and his team are very cordial and make the patient feel as though they are very important.
5.0 Mar 8, 2025 Excellent
3.8 Mar 7, 2025 Dr. Thieburg was very helpful about my skin conditions.
4.8 Mar 7, 2025 Very thorough
4.7 Mar 6, 2025 Very through & knowledgeable
5.0 Mar 6, 2025 He knows his job and does it well.
4.8 Mar 6, 2025 Excellent
5.0 Mar 6, 2025 Excellent care. Everything explained and you involved in the decision process. Very little or no waiting.
5.0 Mar 5, 2025 My doctor has taken great care of me for years
4.8 Mar 3, 2025 Been my doctor for many years.
5.0 Mar 3, 2025 Dr. Thieberg Is very knowledgeable and caring in his approach to my dermatology treatments. I appreciate the successes he has had in treating me.
5.0 Mar 3, 2025 I have received excellent care from Dr. THIEBERG for years. Always a great experience which I truly appreciate.
5.0 Mar 1, 2025 Simply put, he's the very best at what he does.
5.0 Feb 28, 2025 Very satisfactory
5.0 Feb 28, 2025 Excellent diagnostician and communication skills
4.9 Feb 27, 2025 Good doctor
5.0 Feb 27, 2025 He is excellent!!
4.5 Feb 26, 2025 Dr. Thieberg is very thorough in his examination and treatment of issues identified
5.0 Feb 26, 2025 Dr. Thieberg manages to provide first-rate service and care and do it on time. I never have to wait. He has been my dermatologist for several decades and has my complete confidence in established treatments and recommendations.
5.0 Feb 26, 2025 Excellent, professional and attentive
4.8 Feb 26, 2025 Listens closely to issues and treats accordingly
5.0 Feb 26, 2025 Dr. Thieberg is a wonderful doctor. He always takes time to discuss my issues and provides excellent care
5.0 Feb 26, 2025 Very friendly and nice. Listens to my question s and concerns. Very thorough with my exam.
5.0 Feb 24, 2025 He is always very professional
5.0 Feb 23, 2025 Very helpful
5.0 Feb 23, 2025 Excellent
5.0 Feb 21, 2025 He was efficient, to the point, took care of my skin issues and I was on my way in no time.
5.0 Feb 20, 2025 Excellent
5.0 Feb 19, 2025 Dr Thieberg and his excellent staff take good care of me!
5.0 Feb 18, 2025 Dr. Thieberg was very thorough and said that my scalp had improved from my last visit, and he didn't need to treat it again this visit.
5.0 Feb 17, 2025 Have used the doctor for years. Will always recommend him
5.0 Feb 17, 2025 Dr T was timely, thorough and thoughtful. I would recommend him to anyone
5.0 Feb 16, 2025 OUTSTANDING doctor. If there was a '20' rating, I would give him that !!
5.0 Feb 15, 2025 Very professional and proficient.
5.0 Feb 15, 2025 Good communication skills
5.0 Feb 15, 2025 He did a great job.
4.8 Feb 15, 2025 Outstanding visit and best results.
5.0 Feb 14, 2025 He takes the time to explain what is needed.
5.0 Feb 14, 2025 He is great
5.0 Feb 13, 2025 The best!
5.0 Feb 12, 2025 He is wonderful. Always professional
4.5 Feb 12, 2025 Answers questions
5.0 Feb 11, 2025 DR. THIEBERG IS AN EXCELLENT PHYSICIAN. HIS KNOWLEGE AND EMPATHY IS REMARABLE. YOU NEVER THINK YOU WILL NEED TO CONTACT YOUR DERMATOLOGIST WHILE YOU SRE ON VACATION; HOWEVER IT HAPPENED TO ME A FEW YEARS BACK. FORTUNATELY, DR. THIEBERG MANAGED QUITE WELL TO CONTACT ME WITH THE INFORMATION, WHICH ENABLED ME TO PROCEED THROUGH WHAT TURNED OUT TO BE THE SUMMER BREAK EVER.
5.0 Feb 9, 2025 A good guy. Competent. Knows what he is doing.
5.0 Feb 8, 2025 Dr.Thieberg is wonderful, caring, and so assertive. He has been our dermatologist for many years.He always greets you with a smile, always friendly.
5.0 Feb 8, 2025 Excellent care!
5.0 Feb 6, 2025 No one Better
4.8 Feb 6, 2025 Excellent care provider.
4.8 Feb 6, 2025 Thorough job.
4.8 Feb 6, 2025 Very good doctor! Took some samples of a persistent rash I have
4.7 Feb 5, 2025 Thorough and carin
4.9 Feb 4, 2025 Excellent as usual
5.0 Feb 3, 2025 Great care, very skilled and professional
5.0 Feb 2, 2025 Very Knowledge, Hands-on and friendly doctor.
5.0 Feb 1, 2025 He is a wonderful doctor. Extremely thorough and smart. I completely trust him to take excellent care of me.
4.7 Feb 1, 2025 Takes good care of me for 30 years
5.0 Feb 1, 2025 Outstanding. He answered all of my questions with care.
5.0 Jan 31, 2025 Excellent service
4.8 Jan 30, 2025 Very attentive to the issues I had
4.6 Jan 30, 2025 Knowledgeable, caring, listens
5.0 Jan 30, 2025 Always answers all questions & concerns. Does not rush.
5.0 Jan 29, 2025 The best dermatologist in DFW
5.0 Jan 28, 2025 He is very thorough, he's listens and also respects my time. I appreciate being taken in for the appointment quickly and seeing the doctor promptly.
5.0 Jan 28, 2025 Dr Thieberg definitely knows his profession. He diagnosed a Melanoma and helped schedule my surgery. Now on a 3 month recheck. Pleased with his aggressive attitude.
4.8 Jan 25, 2025 Dr. Theiberg takes his time carefully examining patient to make sure all concerns have been reviewed, and he listens carefully to his patients, I feel cared for and valued.
4.4 Jan 24, 2025 Thorough exam and concerned if I had any issues.
5.0 Jan 24, 2025 I have been seeing Dr Theiberg for many years. I trust him completely. He has found and treated several issues for me and I'm very grateful he saw them. I would recommend him to anyone.
5.0 Jan 23, 2025 Not only WOULD I recommend him, I HAVE recommended him to my family.
5.0 Jan 22, 2025 Professional takes his time does not rush you answers your questions and personal
4.9 Jan 21, 2025 Thorough exam, prompt and pleasant conversation.
4.8 Jan 19, 2025 Very professional and I have total confidence in him.
5.0 Jan 18, 2025 Always helpful with suggestions
4.9 Jan 18, 2025 He was very concerned and answered any thing I asked.
5.0 Jan 18, 2025 Very through. Very personable
5.0 Jan 17, 2025 Thorough and thoughtful exam.
5.0 Jan 17, 2025 Listens carefully and takes care of all your concerns. Never rushes to get to next patient
4.6 Jan 17, 2025 Very knowledgeable, polite, and thorough.
5.0 Jan 16, 2025 Dr. Thieberg is a good listener, and very thorough.
5.0 Jan 16, 2025 Have gone to him for years, always good care
5.0 Jan 16, 2025 Dr. Thieberg is very thorough in his exams and treatment. He explains my conditions and how to administer prescribed medications in an easy-to-understand manner. When I have had an issue arise outside of my regularly scheduled appointments, Dr. Thieberg's staff has worked to get me in to be seen by him quickly. As a post-transplant patient, I am on anti-rejection drugs. Dr. Thieberg is aware of this and is proactive in addressing any changes on my skin.
5.0 Jan 16, 2025 Very professional
4.7 Jan 15, 2025 Great doctor and excellent bedside manner. Thank you.
5.0 Jan 15, 2025 Always professional.
4.8 Jan 15, 2025 Takes time with you.
5.0 Jan 14, 2025 Very pleased, keeps very close watch with 6 month exams for skin Issues. Treatments have always helped and very pleased recently with meds that cured finger nails.
5.0 Jan 14, 2025 Very good
4.7 Jan 11, 2025 Good experience
5.0 Jan 11, 2025 Very professional, personable, knowledgeable and on-time.
5.0 Jan 9, 2025 Excellent care
5.0 Jan 9, 2025 The best.
5.0 Jan 9, 2025 Cares about educating the patient on what to look for when examining one's skin for molds, etc. Very easy to talk with and ask questions.
5.0 Jan 9, 2025 As tony the tigger would say Great
5.0 Jan 8, 2025 Very prompt and thorough as always. Will be back to see him in 6 months.
5.0 Jan 8, 2025 Pleasant. Knowledgeable. Caring. Listens.
5.0 Jan 7, 2025 He's very thorough, and explains everything very well. Dr. Thieberg listens to all my questions, and never makes me feel rushed. He's amazing!
4.8 Jan 4, 2025 Dr Thieberg is efficient and willing to go the extra step to make sure my skin care is effective.
5.0 Jan 2, 2025 Excellent
5.0 Jan 1, 2025 Extremely professional
4.8 Dec 31, 2024 He is very careful and observant
5.0 Dec 25, 2024 My wife and I have both been patients of Dr Thieberg for many years. Have referred others to him. He Is the BEST.
5.0 Dec 22, 2024 Excellent care, explains what he is doing and why.Goes over after visit home care verbally clearly and has the same instructions clearly in the after visit information.
5.0 Dec 21, 2024 Always thorough, on time & addresses any issues well
5.0 Dec 21, 2024 Listens well
5.0 Dec 21, 2024 He is very competent and diligent.
5.0 Dec 21, 2024 Dr. Thieberg is an excellent physician. He is kind, thorough, and very good. One of the very best doctors I have ever known.
5.0 Dec 20, 2024 Very thorough
5.0 Dec 19, 2024 Excellent care!
5.0 Dec 19, 2024 Excellent physician
5.0 Dec 19, 2024 Dr. Thieberg is a patient devoted provider, with attention to listening to the patient problems, and considering all aspects of patient care.
5.0 Dec 18, 2024 One of the best doctor"s in his creditation field . Always professional ,:always addresses medical problems with solutions. I feel safe as his patient....and continue in health... ...the best care?!
4.8 Dec 18, 2024 I've been recommending Dr Thieberg for 30 years when he first joined Dallas Diagnostics at Medical City around 1994. I completely trust him...
4.8 Dec 13, 2024 Dr Thieberg is the very best Dr. He is caring, very knowledgeable, and communicative. I have no problem sharing his services.
5.0 Dec 13, 2024 Caring and asked about how I was feeling. Listened and gave advice.
5.0 Dec 13, 2024 Did not have to sit in waiting room very long. Staff is very friendly and courteous.Dr. Thieberg on time and easy to converse with. Did a competent, thorough, inspection of my body. Will see him next year hopefully.
5.0 Dec 11, 2024 Dr T is very friendly, laid back person, but his exam is very detailed.
5.0 Dec 10, 2024 Very patient and caring and takes care of the problems quickly
5.0 Dec 10, 2024 The doctor is very thorough and very knowledgeable.
5.0 Dec 8, 2024 The appointment took place in a timely manner. The doctor was courteous, professional and thorough. My concerns were answered without making me feel rushed. I came away from the appointment having confidence in the treatment plan and the doctor.
5.0 Dec 8, 2024 Dr. Thieberg is always very thorough and spends time with me regarding my skin issues.
5.0 Dec 8, 2024 I feel Dr. Thieberg is the best Dermatologists in the area, and this is shared by Doctors he has worked with. He has help me where other Doctors failed for over twenty years. I feel so committed to him that I drive from Ft Worth for my appointments.
5.0 Dec 7, 2024 Very good doctor
5.0 Dec 5, 2024 Personal and focused.
4.8 Dec 5, 2024 Very professional and customer focused.
5.0 Dec 5, 2024 Great doctor and wonderful staff!
5.0 Dec 5, 2024 Listens carefully
4.3 Dec 4, 2024 Very helpful and all business,caring. Knows his business been taking care of me for 12+years & all my family!!
5.0 Dec 4, 2024 Mark Thieberg and I have been good friends for many years. He has been my dermatologist for all of those years.
5.0 Dec 3, 2024 On time and was very good
4.7 Nov 29, 2024 Dr Thieberg was very knowledgeable, a good listener and efficient.
5.0 Nov 28, 2024 Wonderful doctor!
5.0 Nov 28, 2024 One of my favorite drs at Baylor. Wonderful person And likes guitars as well !!
5.0 Nov 28, 2024 Solve my skin problems
5.0 Nov 27, 2024 Mark has been by dermatologist since we recruited him out of his residency. He is one of the smartest terms around. By the way, he is also boarded in Internal Medicine.
5.0 Nov 27, 2024 Simply the best! Always informative. Always accommodating.
5.0 Nov 26, 2024 Dr Thieberg is a very conscientious person who respects your time and is a great diagnostician. He is thorough and gets you in and out of his office timely.
5.0 Nov 24, 2024 Very knowledgeable and professional
4.3 Nov 23, 2024 Very thorough. Describes what he is doing and why.
5.0 Nov 23, 2024 Explains issues and procedures well. Thorough exams.
5.0 Nov 22, 2024 Friendly, thorough and always takes care of my issues. Super doc!
5.0 Nov 21, 2024 Very knowledgeable and super nice and always on time of the appt.
5.0 Nov 20, 2024 He's very competent.
4.9 Nov 20, 2024 He is reasonable in his approach and doesn't over prescribed medications. Very down to earth.
5.0 Nov 20, 2024 Very professional, thorough and knowledgeable
5.0 Nov 18, 2024 Mark is the best and most thorough provider around, and I often recommend him to my family and friends.
5.0 Nov 16, 2024 He is very professional and personable. I have never had a problem talking with him about why I'm there.
5.0 Nov 16, 2024 Dr is very knowledgeable and offers very good advice about skin care and freezing off all precancer moles.
5.0 Nov 16, 2024 Caring, on time and very efficient
4.6 Nov 15, 2024 Thank you.
5.0 Nov 15, 2024 Very reliable service for many years.
5.0 Nov 15, 2024 Excellent Dr
5.0 Nov 14, 2024 Dr is through and efficient.
5.0 Nov 11, 2024 Excellent provider.
5.0 Nov 10, 2024 Dr Theiberg is professional yet also friendly.
5.0 Nov 10, 2024 Very thorough
5.0 Nov 9, 2024 Been a provider for over 20+ years can not sat enough nice words about him.
5.0 Nov 8, 2024 On time, thorough, explains treatments well
5.0 Nov 8, 2024 Includes my input in my care
5.0 Nov 8, 2024 Seems to be very professional and knowledgeable
5.0 Nov 8, 2024 I've been seeing Dr Thieberg for many years for my dermatology issues.Dr Thieberg always explains things and spends time talking to you.He's a great physician and his staff are great too.
5.0 Nov 7, 2024 Great care
5.0 Nov 7, 2024 I was seen on time; everything was addressed; all good.
5.0 Nov 6, 2024 He is a terrific physician. He through in this exams and spends time educating how to recognize the types of skin cancer.
5.0 Nov 6, 2024 Excellent!
5.0 Nov 6, 2024 Dr. Theiberg is thorough.
5.0 Nov 2, 2024 He listens and is respectful. I trust him.
4.9 Nov 2, 2024 Very attentive and concerned about my skin health. Takes as much time as needed to analyze my skin and treat any areas of concern.Provides suggestions for home treatment of any skin conditions that I may have.
5.0 Nov 1, 2024 Super nice guy who knows his business.
4.8 Nov 1, 2024 On time, addressed all issues and questions. Procedure was quick and relatively painless.
5.0 Nov 1, 2024 Very professional and very informative. He takes his time to explain everything.
5.0 Oct 31, 2024 Very good experience. I Trust him completely
5.0 Oct 31, 2024 Long term patient

*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.