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

Dr. Roger B Haag, O.D.

Optometrist in South Lyon, MI · enumerated 2006.

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

National Provider Identifier

1659439610

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Registry record

Entity type Individual (Type 1)

Name Dr. Roger B Haag

Credential O.D.

Sex Male

Practice address South Lyon, MI, 48178

Phone (248) 437-2002

Fax (248) 437-6838

Enumeration date Dec 4, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901002500 (MI) 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
0421320001	Other	MI	MED-B-DME
813459	Other	MI	EYEMED VISION CARE
1754793	Medicaid	MI	-
900F367430	Other	MI	BLUE CROSS BLUE SHIELD
VC630013	Other	MI	M-CARE VISION

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

How do I verify Roger Haag's NPI record?

Cross-check NPI 1659439610 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659439610 active?

Yes, as of the latest NPPES snapshot, NPI 1659439610 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.