Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James A Davison, MD

Ophthalmology Physician in Marshalltown, IA · enumerated 2005.

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

National Provider Identifier

1104818996

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Registry record

Entity type Individual (Type 1)

Name James A Davison

Credential MD

Sex Male

Practice address 309 E Church St, Marshalltown, IA, 50158

Phone (641) 754-6200

Fax (641) 752-7420

Enumeration date Aug 17, 2005

Last updated in NPPES May 12, 2015

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 22087 (IA) 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
39217	Other	IA	WELLMARK BLUE CROSS
0172262	Medicaid	IA	-
180011426	Other	IA	RAILROAD MEDICARE

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

What is the NPI number for James Davison?

The National Provider Identifier (NPI) for James Davison is 1104818996, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Davison practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-12.