Gregory Lehman, DDS

Oral & maxillofacial surgeon in Crystal Lake, IL

Registered specialist

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Public-record details

Address: 850 Munshaw Lane, Crystal Lake, IL 60014
Phone: (815) 459-7400
Listed under: Oral & maxillofacial surgeons
NPI: 1477592061
NPI status: Active in the NPPES registry
Provider type: Individual provider
Registered specialty (self-reported taxonomy): Oral and Maxillofacial Surgery (1223S0112X)
Credentials listed: DDS
NPI first issued: Jun 6, 2006
NPI record last updated: Jul 13, 2026

NPI 1477592061 is active in the federal NPPES registry (CMS) with Oral and Maxillofacial Surgery, an ADA-recognized dental specialty, as its primary taxonomy. Source: NPPES NPI Registry (CMS) (record). Data as of 2026-09-30.

What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an individual clinician. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. Oral and maxillofacial surgeons are trained in surgery of the mouth and jaws, including placing implants, extractions, bone grafts and sinus lifts, and in anesthesia. Dentists who are not specialists can also place implants; the specialty here is the one the provider registered as primary.

View NPI 1477592061 in the official registry ↗

Checking credentials: the specialty shown is the one this provider registered with the NPI system. Your state dental board's license lookup confirms the license, and the American Board of Prosthodontics, the American Board of Oral and Maxillofacial Surgery and the American Board of Periodontology each list their board-certified members.

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