Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michael Alan Hattan, OD

Optometrist in Hays, KS · enumerated 2006 · practices at Michael A Hattan Od.

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

National Provider Identifier

1639128861

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Alan Hattan

Credential OD

Sex Male

Practice address Hays, KS, 67601

Phone (785) 625-2226

Fax (785) 625-9167

Enumeration date May 6, 2006

Last updated in NPPES Apr 5, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 1169-3 (KS) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 1169-3 (KS) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
30004371840002	Medicaid	KS	-
5158	Other	KS	BLUE CROSS BLUE SHIELD KS

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 Michael Hattan practice?

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

What is the NPI number for Michael Hattan?

The National Provider Identifier (NPI) for Michael Hattan is 1639128861, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Michael A Hattan Od Optometrist · Hays, KS NPI 1982873279 Anthony Taylor Optometrist · Hays, KS NPI 1770839854 Nicholas Mondero Optometrist · Hays, KS NPI 1942648852

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-05.