Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew A. Green, MD

Pediatric Anesthesiology Physician in Portland, ME · enumerated 2006.

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

National Provider Identifier

1366523425

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew A. Green

Credential MD

Sex Male

Practice address 22 Bramhall St, Portland, ME, 04102

Phone (207) 662-2526

Fax (207) 662-6236

Enumeration date Oct 17, 2006

Last updated in NPPES Nov 7, 2019

Taxonomy & licenses

207LP3000X Pediatric Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD23094 (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
1366523425	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 Matthew Green?

Matthew Green is registered in NPPES with the primary taxonomy of Pediatric Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Jeffrey Berman Pediatric Ophthalmology and Strabismus Specialist Physician · Portland, ME NPI 1407852528 Suzanne Maynard Certified Registered Nurse Anesthetist · Portland, ME NPI 1386641355 Monique Patterson Certified Registered Nurse Anesthetist · Portland, ME NPI 1750389359 Christian Trahan Certified Registered Nurse Anesthetist · Portland, ME NPI 1477552180 Mark Parker Nephrology Physician · Portland, ME NPI 1770583346 Thomas Charrette Hospitalist Physician · Portland, ME NPI 1679565626 Donald Hankinson Neuromusculoskeletal Medicine & OMM Physician · Portland, ME NPI 1285627257 Heidi Deblock Internal Medicine Physician · Portland, ME NPI 1922095892

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-07.