Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Michael Greene, MD

Specialist in Bangor, ME · enumerated 2005.

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

National Provider Identifier

1699769893

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Registry record

Entity type Individual (Type 1)

Name James Michael Greene

Credential MD

Sex Male

Practice address 417 State St, Webber West Suite 340, Bangor, ME, 04401

Phone (207) 973-9570

Fax (207) 973-9577

Enumeration date Sep 2, 2005

Last updated in NPPES Dec 15, 2016

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 015117 (ME) Primary

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
3886334	Other	ME	CIGNA
2180213	Other	ME	AETNA
271550099	Medicaid	ME	-

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is James Greene?

James Greene is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-15.