Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arin K Greene, MD

Surgery Physician in Boston, MA · enumerated 2006.

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

National Provider Identifier

1053385245

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Registry record

Entity type Individual (Type 1)

Name Dr. Arin K Greene

Credential MD

Sex Male

Practice address 300 Longwood Ave, Hu-158, Boston, MA, 02115

Phone (617) 355-2306

Fax (617) 738-1657

Enumeration date Feb 14, 2006

Last updated in NPPES Jul 25, 2014

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 205307 (MA) 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
2127199	Medicaid	MA	-

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 Arin Greene?

Arin Greene is registered in NPPES with the primary taxonomy of Surgery Physician. 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 2014-07-25.