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Dr. Jeffrey Mark, MD

Dr. Jeffrey Mark, MD

Gastroenterology*
30+ years of experience

Dr. Jeffrey Mark, MD is a gastroenterologist in Turlock, CA and has over 30 years of experience in the medical field. Dr. Mark has extensive experience in Esophageal Disorders. He graduated from University of Illinois College of Medicine in 1992. He is affiliated with medical facilities Memorial Medical Center and John Muir Medical Center Walnut Creek. He is accepting new patients.

4 Star Rating
Based on 26 reviews 4 Star Rating (26 reviews)

Practice

2101 Geer Rd Ste 118 Turlock, CA 95382

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Hospital Highlight

Dr. Mark is affiliated with John Muir Medical Center Walnut Creek Walnut Creek, a highly rated hospital.

Dr. Mark is a Healthgrades Choice provider in Gastroenterology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Areas of Expertise
    Dr. Mark specializes in the areas of Gastroenterology, Gastroenterology & Internal Medicine. See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ See hospitals
  • Practices at Highly Recommended Hospital
    Patients recommend this hospital to family and friends. See hospitals
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Dr. Mark's Reviews

Likelihood to recommend Dr. Mark

4.0
26 ratings, 9 with a written review
5 star
73%
73%
4 star
0%
0%
3 star
4%
4%
2 star
0%
0%
1 star
23%
23%

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beware
watch out, he only cares about putting you in the functional medicine path and charging you a lot of money (does not take insurance for that) He actually does not care about your health. When my test results came in, the office did not even bother to call me, they did not want to forward the results to me, the only thing they wanted was to schedule the appointment for which I would have to pay out of pocket. The test results were not that great - that's why I said he does not care about your health at all.
What went well
  • Appointment scheduling
What could be improved
  • Didn't trust the provider's decisions
1 other person found this helpful
Helpful
paul – May 29, 2022
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I've been a patient of Mr. Mark for several years and have referred him to both family and friends. He is a very thorough, kind doctor who puts you at ease and really knows his stuff. I feel confident that I am receiving the best possible care in his hands and highly recommend him.
What went well
  • Office environment
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
  • Long wait times
Helpful
Rosie – Jan 13, 2021
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My mother had brain surgery 4 years ago and ever since then it's been a battle to find her a specialist who can recommend supplements that can help her heal without prescription drugs. We made a functional medicine appointment for her with Dr.Mark and he immediately knew what to recommend for her. This is the first time in 4 years that my mother did not have a bad reaction to new supplements she tried and she actually says that she feels better when she takes them. For my family, this is great because its one step closer to helping her body heal without prescription drugs and this has been a 4 year battle. I just stocked up on supplements for her actually. Its the perfect combination. This place has their own supplement line which is awesome!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Nov 13, 2019
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Exceptionally skilled 4 board certifications and dedicated to patient care The best quality supplements I can find anywhere! Judge the doctor by his skills. Looks like they had some temporary staff but new patient coordinator is superb! I’m thankful to have such an outstanding doctor!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Dec 03, 2018
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Dr. Jeffrey Mark is an exceptional physician and person. He is very dedicated to his patients. I have been in his care for 3 years, he turned my diseased system from dying to healthy. I trust my life with him. Dr. Mark is progressive and constantly learning. He knows how to obtain the information to correctly heal your body. Go in with your questions written down. His office can be busy, and his staff may be a little behind; but you will be seen. It is worth the wait if he is running behind
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
Barbra Brooks in Danville, CA – Jul 11, 2018
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It took 15 minutes for someone to even come out and check me in. Then, they gave me forms that already had someone's name on them in places (I had just crossed it out) so they made me fill them out all over again. After One Hour of waiting I had still not seen the doctor and was told there was stil one person ahead of me. Dr. was okay; not very friendly. Follow-up visit was a total waste of time; he just said some very impersonal stuff you would say to anyone.
What went well
  • Office environment
What could be improved
  • Staff wasn't friendly
  • Appointment was rushed
  • Long wait times
2 others found this helpful
Helpful
pleasanton, ca – Mar 31, 2017
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Exceptional clinician. Caring and knowledgeable.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 others found this helpful
Helpful
A.A in Dublin, CA – Sep 23, 2016
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I find Dr. Mark to be not only uniquely competent in his profession, but remarkably thorough in his assessments. I switched from a Walnut Creek veteran to Dr. Mark about ten years ago and it turned out to be one of the best decisions I could have made.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
8 others found this helpful
Helpful
Howard Gerber in Walnut Creek, CA – Feb 18, 2016
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I saw a few doctors for my condition and Dr Mark definitely resolved my concerns. Great doctor and staff.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
7 others found this helpful
Helpful
A. N. in Walnut Creek, CA – Jan 22, 2016
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About Me

biography

Dr. Jeffrey Mark, MD is a gastroenterologist in Turlock, CA and has over 30 years of experience in the medical field. Dr. Mark has extensive experience in Esophageal Disorders. He graduated from University of Illinois College of Medicine in 1992....read more
  • Gastroenterology

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of Illinois College Of Medicine

    Medical School, 1992
American Board of Medical Specialties®
American Board of Internal Medicine®
Gastroenterology
National Board of Physicians and Surgeons®
National Board of Physicians and Surgeons®
Gastroenterology
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
  • English

  • Chinese

Dr. Mark is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

    Locations

    Practice

    Office2101 Geer Rd Ste 118 Turlock, CA 95382
    1
    Miroslav Grgurevic MD Inc.3850 Geer Rd Turlock, CA 95382
    2

    Practice

    Unavail111 Deerwood Rd Ste 168 San Ramon, CA 94583
    3

    Affiliated Hospitals

    • John Muir Medical Center Walnut Creek

      1601 Ygnacio Valley Rd
      Walnut Creek, CA 94598
      Recipient of 3
      hospital awards

      Outstanding Patient Experience Award™ (2022)

      Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

      View all awards

      How patients felt about the care they received at this hospital.

      86%
      Patients said they were given information about recovering at home

      2% higher than the national average

      76%
      Patients said that doctors always listened to them and explained things well
      View all patient feedback
    • Memorial Medical Center

      1700 Coffee Rd
      Modesto, CA 95355
      Recipient of 19
      hospital awards

      America's 100 Best Hospitals Award™ (2025, 2024, 2023)

      Top 1% in the nation for providing the highest clinical quality year over year

      America's 250 Best Hospitals Award™ (2025, 2024, 2023)

      Top 1% in the nation for providing the highest clinical quality year over year

      View all awards

      How patients felt about the care they received at this hospital.

      86%
      Patients said they were given information about recovering at home

      2% higher than the national average

      74%
      Patients said that doctors always listened to them and explained things well

      2% lower than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality