Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Won-Seok Jo, MD

Individual provider Gastroenterology Physician · NPI 1245215144

Dr. Won-Seok Jo, MD is a Gastroenterology in San Bernardino, California. Graduated from University of California, San Diego School of Medicine in 1999, 27 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2005
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

424 E Vanderbilt Way Ste B
San Bernardino, CA 92408-3552
Phone: (909) 796-0363
Fax: (909) 255-7292
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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 A91260 (CA)

Record details

NPI number1245215144
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 13, 2005
Last updated in NPPESOctober 17, 2023
Certification dateAugust 28, 2023

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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