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Edit this profileAt a glance
- 1520 San Pablo St, Ste 3800, Los Angeles, CA 90033
About Dr. Gruen
John P. Gruen, M.D. is a healthcare provider in Los Angeles, CA specializing in neurological surgery. John trained at Columbia University College of Physicians and Surgeons, graduating in 1986. This provider record is associated with NPI 1194769570.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
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
- (323) 442-5720
- Email not available
Practice Locations
1520 SAN PABLO ST STE 3800
Los Angeles, CA 90033
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 neurosurgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 — 23 related providers in 3 groups
Other neurosurgeons in Los Angeles 8
Same specialty, same city.
Trained at Columbia University College of Physicians and Surgeons 7
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Common questions
What does John P. Gruen specialize in?
John P. Gruen is a neurosurgeon in Los Angeles, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurological Surgery”.
NPI registry
Where is John P. Gruen located?
John P. Gruen is listed at 1520 San Pablo St Ste 3800, Los Angeles, CA 90033. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John P. Gruen's phone number?
The number on file is (323) 442-5720. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John P. Gruen's NPI number?
John P. Gruen's National Provider Identifier is 1194769570. 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
Where did John P. Gruen train?
John P. Gruen attended Columbia University College of Physicians and Surgeons, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has John P. Gruen been practicing?
John P. Gruen has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
Has John P. Gruen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John P. Gruen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.