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Dr. Mark Kogan, MD

Dr. Mark Kogan, MD

Gastroenterology*
40+ years of experience

Dr. Mark Kogan, MD is a gastroenterologist in San Pablo, CA and has over 40 years of experience in the medical field. He graduated from Northwestern University Feinberg School of Medicine in 1980. He is affiliated with medical facilities such as Alta Bates Summit Medical Center-Alta Bates Campus and Ridgecrest Regional Hospital. He is accepting new patients and telehealth appointments.

4.8 Star Rating
Based on 72 reviews 4.8 Star Rating (72 reviews)

Practice

2089 Vale Rd Ste 33 San Pablo, CA 94806
Telehealth available

Make an Appointment

(510) 234-5012

Dr. Kogan 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. Kogan specializes in the areas of Gastroenterology & Internal Medicine. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America’s 100 Best Hospitals for Gastrointestinal Care Award™ • See hospitals
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Dr. Kogan's Reviews

Likelihood to recommend Dr. Kogan

4.8

72 ratings, 52 with a written review
5 Star
90%
90%
4 Star
3%
3%
3 Star
1%
1%
2 Star
4%
4%
1 Star
1%
1%

Your trust is our top concern. Learn more.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
What went well
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Staff wasn't friendly
Helpful
New Patient – Mar 21, 2025
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Telehealth
What went well
  • I felt respected
  • 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
Helpful
KathyH – Mar 12, 2025
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Telehealth
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Difficult to schedule appointment
Helpful
Feb 01, 2025
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Oct 03, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Debbie Ojeda – Jul 18, 2024
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What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Difficult to schedule appointment
Helpful
Jun 06, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Jun 06, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Mercedes Navarro – May 02, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Difficult to schedule appointment
Helpful
Gary Amado – Apr 05, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Jack – Apr 04, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Feb 22, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
linda bell – Feb 21, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
Telehealth
What went well
  • I felt respected
  • 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
Helpful
ricardo – Feb 15, 2024
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What went well
No results
What could be improved
No results
Helpful
Jan 03, 2024
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
William C Runyon – Dec 30, 2023
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What went well
No results
What could be improved
No results
Helpful
Richard Johnson – Dec 29, 2023
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Nov 09, 2023
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
EvelyneFB – Nov 09, 2023
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Jim – Oct 13, 2023
×Post a ResponseAre you Dr. Mark Kogan, MD?
What went well
  • I felt respected
  • 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
Helpful
Bonnie Webb – Sep 06, 2023
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Leave a review

How was your experience with Dr. Kogan?

Know Before You Go

About Me

biography

Dr. Mark Kogan, MD is a gastroenterologist in San Pablo, CA and has over 40 years of experience in the medical field. He graduated from Northwestern University Feinberg School of Medicine in 1980. He is affiliated with medical facilities such as...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 Colorado

    Fellowship Hospital, 1986

  • Weill Cornell Medical College

    Residency Hospital, 1983

  • North Shore University Hospital

    Internship Hospital, 1981

  • Northwestern University Feinberg School Of Medicine

    Medical School, 1980
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
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.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

Dr. Kogan is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

    Focus on IBD

    Locations

    Practice

    Office2089 Vale Rd Ste 33 San Pablo, CA 94806
    1

    Practice

    Amy M. Huibonhoa M.D. Inc2999 Regent St Ste 201 Berkeley, CA 94705
    2
    Ridgecrest Regional Hospital Rural Health Clinic1041 N China Lake Blvd Ste B Ridgecrest, CA 93555
    3

    Practice

    Ridgecrest Regional Hospital1081 N China Lake Blvd Ridgecrest, CA 93555
    4

    Affiliated Hospitals

    • Alta Bates Summit Medical Center-Alta Bates Campus

      2450 Ashby Ave
      Berkeley, CA 94705
      Recipient of 25
      hospital awards

      America’s 100 Best Hospitals for Gastrointestinal Care Award™ (2025, 2024)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      America’s 100 Best Hospitals for Gastrointestinal Surgery Award™ (2025)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

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

      81%
      Patients said they were given information about recovering at home

      3% lower than the national average

      72%
      Patients said that doctors always listened to them and explained things well

      4% lower than the national average

      View all patient feedback

    • Ridgecrest Regional Hospital

      1081 N China Lake Blvd
      Ridgecrest, CA 93555

    • Contra Costa Regional Medical Center

      2500 Alhambra Ave
      Martinez, CA 94553

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

      87%
      Patients said they were given information about recovering at home

      3% higher than the national average

      81%
      Patients said that doctors always listened to them and explained things well

      5% higher than the national average

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