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

John Z Wang, MD, PHD

Individual provider Internal Medicine Physician · NPI 1285747931

John Z Wang, MD, PHD is an Internal Medicine in West Covina, California. Qualified in 1989, 37 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1115 S Sunset Ave Ste 200
West Covina, CA 91790-3940
Phone: (626) 732-8390
Fax: (626) 732-8399
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A67229 (CA)

Record details

NPI number1285747931
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedAugust 16, 2006
Last updated in NPPESJuly 11, 2025
Certification dateJuly 11, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in West Covina