Are you Dr. Hollenberg? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 7621 Canoga Ave, Canoga Park, CA 91304
About Dr. Hollenberg
John Hollenberg, MD is a healthcare provider in Canoga Park, CA specializing in psychiatry. This provider record is associated with NPI 1083799225.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (818) 598-6900
- Email not available
Practice Locations
7621 CANOGA AVE
Canoga Park, CA 91304
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatrists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 2 related providers in 1 group
Other psychiatrists in Canoga Park 2
Same specialty, same city.
Common questions
What does Dr. Hollenberg specialize in?
Dr. Hollenberg is a psychiatrist in Canoga Park, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where is Dr. Hollenberg located?
Dr. Hollenberg is listed at 7621 Canoga Ave, Canoga Park, CA 91304. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Hollenberg's phone number?
The number on file is (818) 598-6900. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Hollenberg?
Dr. Hollenberg's National Provider Identifier is 1083799225. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. Hollenberg have?
Dr. Hollenberg has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Dr. Hollenberg's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hollenberg. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.