Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ioannis Raftopoulos, MD

Surgery Physician in Holyoke, MA · enumerated 2006.

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

National Provider Identifier

1578538047

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Ioannis Raftopoulos

Credential MD

Sex Male

Practice address 11 Hospital Dr Fl 3, Holyoke, MA, 01040

Phone (413) 535-4757

Fax (413) 535-4758

Enumeration date Feb 20, 2006

Last updated in NPPES Aug 16, 2019

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 045421 (CT) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 265321 (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
045421	Other	CT	LICENSE NUMBER
265321	Other	MA	MA LICENSE

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.

Read the full guide → Validate an NPI →

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 Ioannis Raftopoulos?

Ioannis Raftopoulos 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-16.