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

John Gilbert, MD

Individual provider Internal Medicine Physician · NPI 1588650667

John Gilbert, MD is an Endocrinology in Fullerton, California. Graduated from State University of New York Downstate Medical Center in 1983, 43 years ago. Practices with Providence Medical Foundation, a 1,465-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
43
Trained at
State University of New York Downstate Medical Center
Licensed in
CA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

100 E Valencia Mesa Dr Ste 105
Fullerton, CA 92835
Phone: (714) 446-5640
Fax: (714) 446-5625
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 · Licence G53352 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G53352 (CA)

Record details

NPI number1588650667
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 23, 2005
Last updated in NPPESOctober 19, 2020
Certification dateOctober 19, 2020
Mailing address100 E Valencia Mesa Dr Ste 105, Fullerton, CA 92835-3816

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 1983 (43 years in practice)
Group practice Providence Medical Foundation — 1465 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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