Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Justin Louis Sewell, MD

Individual provider Internal Medicine Physician · NPI 1831212158

Dr. Justin Louis Sewell, MD is a Gastroenterology in San Francisco, California. Graduated from University of Arizona College of Medicine in 2005, 21 years ago. Practices with University of California Sfgh Medical Group, a 571-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
21
Trained at
University of Arizona College of Medicine
Licensed in
CA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1001 Potrero Ave
San Francisco, CA 94110-3518
Phone: (415) 206-4575
Fax: (415) 641-0745
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A98102 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A98102 (CA)

Record details

NPI number1831212158
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2007
Last updated in NPPESApril 7, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice University Of California Sfgh Medical Group — 571 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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