Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Henry Otteman, D.O.

Family Medicine Physician in Maquoketa, IA · enumerated 2006 · practices at Medical Associates of Maquoketa, P.C..

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

National Provider Identifier

1730159856

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Registry record

Entity type Individual (Type 1)

Name Mr. William Henry Otteman

Credential D.O.

Sex Male

Practice address 918 W Platt St # 1, Maquoketa, IA, 52060

Phone (563) 652-5145

Fax (563) 652-3674

Enumeration date Jan 23, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 02454 (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
4210571962003	Other	IA	JOHN DEERE HEALTHCARE
1065458	Medicaid	IA	-
0065458	Medicaid	IA	-
00701	Other	IA	WELLMARK BLUE CROSS

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 William Otteman's NPI record?

Cross-check NPI 1730159856 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1730159856 active?

Yes, as of the latest NPPES snapshot, NPI 1730159856 is active (record last updated 2023-03-07).

Other providers at this practice address

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Jill Hunt Family Medicine Physician · Maquoketa, IA NPI 1477539617 Eric Petersen Family Medicine Physician · Maquoketa, IA NPI 1538149042 Paul Koob Family Medicine Physician · Maquoketa, IA NPI 1912987439 Medical Associates of Maquoketa, P.C. Family Medicine Physician · Maquoketa, IA NPI 1295715597 Raymond Hamilton Family Medicine Physician · Maquoketa, IA NPI 1982674750 Kimberly Thompson Family Medicine Physician · Maquoketa, IA NPI 1942252895 Brandon Rickertsen Family Medicine Physician · Maquoketa, IA NPI 1639519531

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