Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William G Terpstra, M.D.

Family Medicine Physician in Kokomo, IN · enumerated 2005.

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

National Provider Identifier

1174500474

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Registry record

Entity type Individual (Type 1)

Name William G Terpstra

Credential M.D.

Sex Male

Practice address 821 N Dixon Rd, Kokomo, IN, 46901

Phone (765) 452-0878

Fax (765) 452-1826

Enumeration date Dec 28, 2005

Last updated in NPPES Mar 24, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01025462 (IN) 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
177280QQ	Other	IN	MEDICARE
P00470036	Other	IN	RR MCR
000000555849BC	Other	IN	ANTHEM BCBS
100060020	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 Terpstra?

The National Provider Identifier (NPI) for William Terpstra is 1174500474, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Terpstra practice?

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

Other providers at this practice address

Browse all →

Thomas Reilly Orthopaedic Surgery of the Spine Physician · Kokomo, IN NPI 1861597387 John Thomas Physician Assistant · Kokomo, IN NPI 1235258476 Wagoner Medical Center, LLC Family Medicine Physician · Kokomo, IN NPI 1194940080 Indiana Spine Group, PC Orthopaedic Surgery of the Spine Physician · Kokomo, IN NPI 1861679094 Elizabeth Burton Nurse Practitioner · Kokomo, IN NPI 1861879132

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-24.