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

Mr. Oliver Lim Ong, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1811951734

Mr. Oliver Lim Ong, MD is an Endocrinology in Glendale, California. Graduated from George Washington University School of Medicine in 1996, 30 years ago. Practices with Adventist Health Physicians Network, a 632-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Trained at
George Washington University School of Medicine
Licensed in
CA
In the registry since
2006
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

801 S Chevy Chase Dr #102
Glendale, CA 91205-4431
Phone: (818) 265-2242
Fax: (818) 265-2241
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 A76526 (CA)

Record details

NPI number1811951734
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2006
Last updated in NPPESJuly 11, 2012

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Adventist Health Physicians Network — 632 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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