Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Allen Stillman, MD

Dermatology Physician in Katonah, NY · enumerated 2006.

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

National Provider Identifier

1457325839

Verified

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Registry record

Entity type Individual (Type 1)

Name Michael Allen Stillman

Credential MD

Sex Male

Practice address 111 Bedford Rd, Katonah, NY, 10536

Phone (914) 232-3135

Fax (914) 242-1516

Enumeration date Feb 14, 2006

Last updated in NPPES Mar 28, 2008

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 1012341 (NY) Primary

207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License 1012341 (NY) 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
00492333	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 Michael Stillman?

Michael Stillman is registered in NPPES with the primary taxonomy of Dermatology 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 2008-03-28.