Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jon David Maher, M.D.

Q: What is the NPI number for Jon Maher?

The National Provider Identifier (NPI) for Jon Maher is 1598769945, a Type 1 (individual) record in the CMS NPPES registry.

Family Medicine Physician in Cresco, IA · enumerated 2005 · practices at Regional Health Services of Howard County.

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

National Provider Identifier

1598769945

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Registry record

Entity type Individual (Type 1)

Name Jon David Maher

Credential M.D.

Sex Male

Practice address 321 8th Ave W, Cresco, IA, 52136

Phone (563) 547-2022

Fax (563) 547-4340

Enumeration date Jun 13, 2005

Last updated in NPPES Apr 6, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 27683 (IA) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 27683 (IA) 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
502370000	Medicaid	MN	-
6056317	Medicaid	IA	-

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

Where does Jon Maher practice?

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

What is the NPI number for Jon Maher?

The National Provider Identifier (NPI) for Jon Maher is 1598769945, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Chad Rasmussen Nurse Practitioner · Cresco, IA NPI 1174587182 Joan Kepros Surgery Physician · Cresco, IA NPI 1225149024 Jon Kammerer Family Medicine Physician · Cresco, IA NPI 1427169192 Paul Jensen Family Medicine Physician · Cresco, IA NPI 1912018649 Janis Rockabrand Medical Physician Assistant · Cresco, IA NPI 1639271851 Regional Health Services of Howard County Rural Health Clinic/Center · Cresco, IA NPI 1669560199 Tracey Schlangen Family Nurse Practitioner · Cresco, IA NPI 1477963684 Deanne Hosek Mental Health Counselor · Cresco, IA NPI 1801207832

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-06.