Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Jay Kosters, D.O.

Family Medicine Physician in Sibley, IA · enumerated 2006.

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

National Provider Identifier

1821076886

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Registry record

Entity type Individual (Type 1)

Name Gregory Jay Kosters

Credential D.O.

Sex Male

Practice address 600 9th Ave N, Sibley, IA, 51249

Phone (712) 754-3658

Fax (712) 754-2634

Enumeration date Jan 9, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 02096 (IA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
115479	Other	MN	UCARE
1304516	Other	IA	STATE PHARMACY NUMBER
10123	Other	-	PREFERRED ONE
7771982	Medicaid	SD	-
52254	Other	-	BAAI
9D043KO	Other	MN	MN BLUE SHIELD
52254	Other	IA	BLUE SHIELD
21097	Other	-	SIOX VALLEY HEALTH PLAN
2228510	Medicaid	IA	-
539723500	Other	MN	MN MEDICAL ASSISTANCE

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

How do I verify Gregory Kosters's NPI record?

Cross-check NPI 1821076886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821076886 active?

Yes, as of the latest NPPES snapshot, NPI 1821076886 is active (record last updated 2023-03-07).

Other providers at this practice address

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Family Medicine Clinic Family Medicine Physician · Sibley, IA NPI 1124026489 Douglas Miedema Family Medicine Physician · Sibley, IA NPI 1720080237 Christian Sessa Family Medicine Physician · Sibley, IA NPI 1730123332 Osceola Community Hospital Inc. Critical Access Hospital · Sibley, IA NPI 1780751222 Osceola Community Hospital Inc Medicare Defined Swing Bed Hospital Unit · Sibley, IA NPI 1861560609 Rachel Wilcinot Family Medicine Physician · Sibley, IA NPI 1891959839 Iowa Lakes Orthopaedics, PC Orthopaedic Surgery Physician · Sibley, IA NPI 1942442678 Family Medicine Clinic Physician Assistant · Sibley, IA NPI 1992023642

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.