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

Dr. Gregory V Sarka, DDS,MD

Oral and Maxillofacial Surgery (Dentist) in Portland, ME · enumerated 2005.

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

National Provider Identifier

1043200868

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory V Sarka

Credential DDS,MD

Sex Male

Practice address Portland, ME, 04103

Phone (207) 387-2055

Fax (207) 387-2022

Enumeration date Oct 24, 2005

Last updated in NPPES Jan 26, 2024

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

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 3720 (ME) Primary

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

Other identifiers

Identifier	Type	State	Issuer
ME0736	Other	ME	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

How do I verify Gregory Sarka's NPI record?

Cross-check NPI 1043200868 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043200868 active?

Yes, as of the latest NPPES snapshot, NPI 1043200868 is active (record last updated 2024-01-26).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-26.