Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James R Mcwilliam, M.D.

Orthopaedic Foot and Ankle Surgery Physician in Harrison, NY · enumerated 2006.

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

National Provider Identifier

1467567305

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Registry record

Entity type Individual (Type 1)

Name Dr. James R Mcwilliam

Credential M.D.

Sex Male

Practice address 600 Mamaroneck Ave, Suite 101, Harrison, NY, 10528

Phone (914) 686-0111

Fax (914) 686-8964

Enumeration date Aug 20, 2006

Last updated in NPPES Jul 29, 2013

Taxonomy & licenses

207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License 233993 (NY) 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
02595077	Medicaid	NY	-

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 James Mcwilliam?

James Mcwilliam is registered in NPPES with the primary taxonomy of Orthopaedic Foot and Ankle 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 2013-07-29.