Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen Lewis Wills, M.D.

Physical Medicine & Rehabilitation Physician in Washington, DC · enumerated 2007.

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

National Provider Identifier

1841316254

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen Lewis Wills

Credential M.D.

Sex Male

Practice address 102 Irving St Nw, Washington, DC, 20010

Phone (202) 877-1000

Fax (202) 882-8434

Enumeration date Mar 21, 2007

Last updated in NPPES Dec 11, 2007

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License MD15363 (DC) 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
5460-0022	Other	-	BS NCA 1500
561071100	Medicaid	MD	-
024027200	Medicaid	DC	-
5421827003	Other	-	CIGNA
DCA0015363	Other	-	BC NCA UB 92
422791-01	Other	-	BS OF MARYLAND
4270331	Other	-	AETNA NON-HMO
250008028	Other	-	RAILROAD MEDICARE
110883	Other	-	KAISER
320227	Other	-	MAMSI
495032	Other	-	NCPPO

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

What specialty is Stephen Wills?

Stephen Wills is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-11.