Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John R Salzman MD Inc

Q: What type of organization is John R Salzman MD Inc?

John R Salzman MD Inc is registered in NPPES as a Radiation Oncology Physician (its primary provider taxonomy).

Radiation Oncology Physician in Oakland, CA · enumerated 2005 · authorized official John Salzman, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255329637

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Registry record

Entity type Organization (Type 2)

Legal business name John R Salzman MD Inc

Practice address 450 30th St, Dept G800, Oakland, CA, 94609

Phone (931) 432-2343

Fax (931) 432-4653

Enumeration date Oct 11, 2005

Last updated in NPPES Jul 6, 2009

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License G22265 (CA) Primary

Authorized official

Name John Salzman

Title Owner

Phone (931) 432-2343

Other identifiers

Identifier	Type	State	Issuer
00G222650	Medicaid	CA	-
00G222650	Other	CA	BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is John R Salzman MD Inc?

John R Salzman MD Inc is registered in NPPES as a Radiation Oncology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-06.