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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ROBERT W FOSTER MD
NPI 1871593756
Internal Medicine in La Mesa, CA

Active since July 21, 2005
5565 GROSSMONT CENTER DR, SUITE 1-105, LA MESA, CA 91942(619) 461-9600(619) 461-0334 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Robert W Foster Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROBERT W FOSTER MD (NPI 1871593756) is an individual internal medicine provider in La Mesa, California, licensed in California (G56132) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1871593756
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ROBERT W FOSTERCredential: MD
Location Address5565 GROSSMONT CENTER DR, SUITE 1-105La Mesa, CA 91942-3020
Mailing Address5565 Grossmont Center Dr, Suite 1-105La Mesa, CA 91942-3020 · (619) 461-9600 · Fax (619) 461-0334
Phone(619) 461-9600
Fax(619) 461-0334
Sole ProprietorNo
Enumeration DateJuly 21, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1871593756 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G56132
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5565 GROSSMONT CENTER DR, La Mesa, CA 91942
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEREMIAH MOLES MD
Otolaryngology
5565 GROSSMONT CENTER DR, BLDG 3 SUITE 101
LA MESA, CA 91942
San Diego County (619) 464-3353
RONALD M JOHNSON MD MEDICAL CORP
Surgery
5565 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-4145
DR. MICHAEL H. FENN M.D.
Otolaryngology
5565 GROSSMONT CENTER DR, SUITE# 352
LA MESA, CA 91942
San Diego County (619) 466-0048
NANCY LYNN NELSON P.T.
Physical Therapist
5565 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 589-0850
PETER F JOHNSON DMD A PROFESSIONAL CORPORATION
Dentist (Prosthodontics)
5565 GROSSMONT CENTER DR, SUITE 110-1
LA MESA, CA 91942
San Diego County (619) 463-3737
MOHAMMED MIRADI MD INC
Internal Medicine (Infectious Disease)
5565 GROSSMONT CENTER DR, STE 211
LA MESA, CA 91942
San Diego County (619) 644-1483
DR. THOMAS GREGORY WADDELL DDS
Dentist (General Practice)
5565 GROSSMONT CENTER DR, SUITE 356
LA MESA, CA 91942
San Diego County (619) 461-1900
DR. KAREN E. ANDERSON, APC
Podiatrist (Foot Surgery)
5565 GROSSMONT CENTER DR, SUITE 152
LA MESA, CA 91942
San Diego County (619) 440-2202

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Foster's NPI number?

The NPI number for Robert Foster is 1871593756. It was assigned to this individual provider in the NPPES registry on July 21, 2005.

Where is Robert Foster located?

Robert Foster practices at 5565 Grossmont Center Dr Suite 1-105, La Mesa, CA 91942. The listed phone number is (619) 461-9600.

What is Robert Foster's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Robert Foster was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.