Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory A Lehman, DDS

Oral and Maxillofacial Surgery (Dentist) in Crystal Lake, IL · enumerated 2006 · practices at Lehman & Menis Oral & Maxillofacial Surgery, P.C..

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

National Provider Identifier

1477592061

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Registry record

Entity type Individual (Type 1)

Name Gregory A Lehman

Credential DDS

Sex Male

Practice address 850 Munshaw Lane, Crystal Lake, IL, 60014

Phone (815) 459-7400

Fax (847) 658-9320

Enumeration date Jun 6, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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

Is NPI 1477592061 active?

Yes, as of the latest NPPES snapshot, NPI 1477592061 is active (record last updated 2007-07-08).

How do I verify Gregory Lehman's NPI record?

Cross-check NPI 1477592061 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Michael Menis Oral and Maxillofacial Surgery (Dentist) · Crystal Lake, IL NPI 1336185305 Lehman & Menis Oral & Maxillofacial Surgery, P.C. Oral and Maxillofacial Surgery (Dentist) · Crystal Lake, IL NPI 1194942110

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