Dr. Justin Louis Sewell, MD

Dr. Sewell practices at Zuckerberg San Francisco General Hospital and Trauma Center in San Francisco, California, part of City and County of San Francisco, CA.

Dr. Sewell's NPI, 1831212158, was assigned on April 10, 2007. Dr. Sewell graduated from College of Medicine - Tucson in 2005. Dr. Sewell holds California license A98102.

Dr. Sewell's primary practice is Zuckerberg San Francisco General Hospital and Trauma Center, at 1001 Potrero Avenue, San Francisco, CA 94110 in San Francisco County. The practice phone is (415) 206-8000.

Dr. Sewell's primary practice is Zuckerberg San Francisco General Hospital and Trauma Center in San Francisco, California, part of City and County of San Francisco, CA. The medical group on file is UCSF Department of Radiology & Biomedical Imaging. Dmand AI also links Dr. Sewell to 1 more medical group, named with a free account.

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

Gastroenterology is Dr. Sewell's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Sewell is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Sewell's licenses on file in 2 states: California and Florida.

Dmand AI lists colonoscopy and upper GI endoscopy among the conditions Dr. Sewell treats.

CMS data shows 208 Medicare services from Dr. Sewell across 7 procedure codes in 2024, for 120 Medicare patients. Medicare paid $20,733 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 120 Medicare patients who saw Dr. Sewell in 2024. The largest group is 65 to 74, with 67 patients. 75% of them have high blood pressure, and 54% have high cholesterol. Their average risk score is 2.29, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Sewell's median patient age at 72, with 50% women.

In 2024, Dr. Sewell wrote 220 Medicare Part D claims for 57 patients. 59% of them were for generic drugs. CMS names the drug for 124 of them, across 6 drugs with 11 or more claims each, at $642,426 in total drug cost. In 2023, CMS named 167 claims across 8 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Sewell for performance year 2024, reported as part of a group. Dr. Sewell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 62 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Sewell, more than 67% of the clinicians it reports for that procedure.

Dmand AI links 82 papers to Dr. Sewell, published from 2008 to 2025. 2018 was the busiest year, with 6. The most frequent topics are Gastroenterology, Cognition and Education, Medical, Graduate. Dr. Sewell has published most often in Gastroenterology. Dr. Sewell's most frequent co-authors are Lukejohn Welch Day, MD, John Q. Young, MD and Alice Huan-Mei Chen, MD, MPH.

CMS Open Payments shows 1 general payment to Dr. Sewell from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Romark Laboratories, LC paid the most, $7.

Dr. Sewell graduated from College of Medicine - Tucson in 2005. Dr. Sewell is a member of ACP.

Dr. Sewell is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.