Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Charles Fanaras, M.D.

Pulmonary Disease Physician in Nashua, NH · enumerated 2005.

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

National Provider Identifier

1164409892

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Charles Fanaras

Credential M.D.

Sex Male

Practice address 166 Kinsley St, Nashua, NH, 03060

Phone (603) 889-4131

Fax (603) 889-6419

Enumeration date Dec 23, 2005

Last updated in NPPES May 9, 2023

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD19307 (RI) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 5927 (NH) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD19307 (RI) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
3086993	Medicaid	NH	-

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 Fanaras's NPI record?

Cross-check NPI 1164409892 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164409892 active?

Yes, as of the latest NPPES snapshot, NPI 1164409892 is active (record last updated 2023-05-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-09.