Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine L Salem, M.D.

Radiation Oncology Physician in Stanford, CA · enumerated 2005.

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

National Provider Identifier

1578563383

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine L Salem

Credential M.D.

Sex Female

Practice address 300 Pasteur Dr, Stanford, CA, 94305

Phone (650) 723-4000

Enumeration date Jul 22, 2005

Last updated in NPPES Jan 17, 2017

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 20025 (DC) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License D0042586 (MD) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License G143277 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
4255520	Other	MD	AETNA PPO
03950	Other	MD	AMERIGROUP
029345800	Medicaid	DC	-
6413638	Other	MD	CIGNA
744095	Other	MD	FIRST HEALTH/CCN
1245478 13	Other	MD	UNITED HC/AMERICHOICE
4579	Other	MD	ELDER HEALTH
43946	Other	MD	MAMSI
29020015	Other	DC	CAREFIRST BC/BS DC
603327-01	Other	MD	CAREFIRST BC/BS
1057463	Other	MD	AETNA HMO
195891700	Medicaid	MD	-
234013	Other	MD	PHCS
501056	Other	MD	NATIONAL CAPITOL PPO

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Catherine Salem?

Catherine Salem is registered in NPPES with the primary taxonomy of Radiation Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-17.