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

Dr. John J Hernandez, MD

Individual provider Otolaryngology Physician · NPI 1043363997

Dr. John J Hernandez, MD is an Otolaryngology in Westlake Village, California. Graduated from University of California, Geffen School of Medicine in 1973, 53 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
53
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2007
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

1250 La Venta Dr Ste 110
Westlake Village, CA 91361
Phone: (818) 889-3230
Fax: (805) 379-4733
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence G26992 (CA)

Record details

NPI number1043363997
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 22, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1973 (53 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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