Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Lee Smits, M.D.

Allergy & Immunology Physician in Fort Wayne, IN · enumerated 2006 · practices at Allergy & Asthma Center, PC.

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

National Provider Identifier

1811950462

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Registry record

Entity type Individual (Type 1)

Name Dr. William Lee Smits

Credential M.D.

Sex Male

Practice address 7222 Engle Road, Fort Wayne, IN, 46804

Phone (260) 432-5005

Fax (260) 432-6003

Enumeration date Apr 6, 2006

Last updated in NPPES Mar 14, 2012

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 01044372A (IN) Primary

2080P0201X Pediatric Allergy/Immunology Physician Allopathic & Osteopathic Physicians · License 01044372A (IN) Secondary

2080P0214X Pediatric Pulmonology Physician Allopathic & Osteopathic Physicians · License 01044372A (IN) 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
352007446101	Other	-	CARESOURCE
030003428	Other	-	RAILROAD MEDICARE
5470020	Other	-	AETNA
000000005310	Other	-	M-PLAN
000000092049	Other	-	ANTHEM BCBS
10786190	Other	-	CAQH
200062640	Medicaid	IN	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for William Smits?

The National Provider Identifier (NPI) for William Smits is 1811950462, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Smits practice?

The practice location on file with NPPES is in Fort Wayne, IN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Allergy & Asthma Center, PC Allergy & Immunology Physician · Fort Wayne, IN NPI 1386606911 Russell Maples Allergy & Immunology Physician · Fort Wayne, IN NPI 1871556951 Renee Holley Family Nurse Practitioner · Fort Wayne, IN NPI 1932383254 Paige Lombard Family Nurse Practitioner · Fort Wayne, IN NPI 1770005829

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-14.