Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert H. Rosenwasser, M.D.

Neurological Surgery Physician in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1275553455

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert H. Rosenwasser

Credential M.D.

Sex Male

Practice address 909 Walnut St, Cob 2nd Floor, Philadelphia, PA, 19107

Phone (215) 955-7000

Fax (215) 503-7007

Enumeration date Jul 20, 2006

Last updated in NPPES Jan 16, 2015

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License MD-023976-E (PA) Primary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 25MA08008900 (NJ) Secondary

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
001012427	Medicaid	PA	-
3815803	Medicaid	NJ	-

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 Robert Rosenwasser?

Robert Rosenwasser is registered in NPPES with the primary taxonomy of Neurological Surgery 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 2015-01-16.