Dr. Mark Harold Kogan, MD

Dr. Kogan practices at East Bay Endoscopy Center in Emeryville, California.

Dr. Kogan's NPI, 1780690313, was assigned on August 1, 2006. Dr. Kogan graduated from Feinberg School of Medicine in 1980. Dr. Kogan holds California license G60809.

Dr. Kogan's primary practice is East Bay Endoscopy Center, at 5858 Horton Street, Suite 100, Emeryville, CA 94608. The practice phone is (510) 654-4554.

Dr. Kogan's primary practice is East Bay Endoscopy Center in Emeryville, California. Dr. Kogan is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Kogan to 3 more hospitals, 4 medical groups, 3 group practices and clinics and 1 rural health clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kogan practices, 9 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Kogan's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Kogan is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Kogan's licenses on file in 3 states: California, New York and Colorado.

Dmand AI lists acid reflux, acute gastroduodenitis, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, colonoscopy, fatty liver, gastroenteritis and gastrointestinal bleeding among the conditions Dr. Kogan treats.

CMS data shows 2,430 Medicare services from Dr. Kogan across 14 procedure codes in 2024, for 407 Medicare patients. Medicare paid $166,689 for them.

CMS counts 407 Medicare patients who saw Dr. Kogan in 2024. The largest group is 65 to 74, with 201 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 41% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kogan's median patient age at 64, with 50% women.

In 2024, Dr. Kogan wrote 898 Medicare Part D claims for 316 patients. 80% of them were for generic drugs. CMS names the drug for 728 of them, across 16 drugs with 11 or more claims each, at $89,601 in total drug cost. In 2023, CMS named 673 claims across 16 drugs.

Dr. Kogan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kogan as offering telehealth. CMS counts 78 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Kogan, more than 71% of the clinicians it reports for that procedure.

Dmand AI links Dr. Kogan to 10 clinical trials, 3 of them phase 3 studies. 1 is still active or recruiting. Conditions studied include Colitis, Ulcerative, Colitis and Crohn Disease. Eli Lilly and Company sponsors the most, 5. Open Payments lists research payments to Dr. Kogan that name 4 trials.

CMS Open Payments shows 240 general payments to Dr. Kogan from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 57% of the total. CapsoVision, Inc. paid the most, $5,024. It also lists 8 research payments totaling $15,121 from 2016 to 2021, naming 4 clinical trials.

Dmand AI lists 2 awards for Dr. Kogan, most recently Bay Area Best Doctors in 2024.

Dr. Kogan graduated from Feinberg School of Medicine in 1980. Dr. Kogan is a member of AGA.

Dr. Kogan is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.