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

Gastroenterology Specialists Medical Group, Inc a Medical Corporation

Organization Gastroenterology Physician · NPI 1629170998

Gastroenterology Specialists Medical Group, Inc a Medical Corporation is a Gastroenterology Physician in Castro Valley, California. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

19845 Lake Chabot Rd Ste 104
Castro Valley, CA 94546-4055
Phone: (510) 537-4415
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X

Record details

NPI number1629170998
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Wei-Fang Ko Ko — President · (510) 537-4415
Other names Gastroenterology Specialists Medical Group; Gastroenterology Specialists Medical Group
NPI enumeratedSeptember 5, 2006
Last updated in NPPESAugust 1, 2022
Certification dateAugust 1, 2022
Mailing address19845 Lake Chabot Rd, Suite 104, Castro Valley, CA 94546-4055

Other providers in Castro Valley