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

Dr. John Hollenberg, MD

Individual provider Psychiatry Physician · NPI 1083799225

Dr. John Hollenberg, MD is a Psychiatry Physician in Canoga Park, California. Practices as a sole proprietor. Licensed in California.

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

7621 Canoga Ave
Canoga Park, CA 91304-4912
Phone: (818) 598-6900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G00051020 (CA)

Record details

NPI number1083799225
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 26, 2006
Last updated in NPPESJanuary 14, 2014
Mailing address7621 Canoga Ave, Canoga Park, CA 91304-4912

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