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

Internal Medicine Medical Group

Organization Internal Medicine Physician · NPI 1164625588

Internal Medicine Medical Group is an Internal Medicine Physician in Fontana, California. Registered with an NPI since 2007.

In the registry since
2007
Specialties on file
2

Practice location Address checks out

16465 Sierra Lakes Parkway Internal Medicine Medical Group Ste
Fontana, CA 92336-1242
Phone: (909) 770-8640
Fax: (909) 770-8650
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X
Internal Medicine Physician Taxonomy 207R00000X

Record details

NPI number1164625588
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Adrienne Walker — Contracts Manager · (909) 398-1550
NPI enumeratedJune 6, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address840 Towne Center Drive, Internal Medicine Medical Group, Pomona, CA 91767-5900

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