NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Arena, MD

Blood Banking & Transfusion Medicine Physician in Worcester, MA · enumerated 2008.

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

National Provider Identifier

1225298318

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Robert Arena
Credential MD
Sex Male
Practice address 55 Lake Ave N, Worcester, MA, 01655
Phone (508) 421-1950
Enumeration date Jun 11, 2008
Last updated in NPPES Apr 21, 2026

Taxonomy & licenses

207ZB0001X Blood Banking & Transfusion Medicine Physician Allopathic & Osteopathic Physicians · License 25MA13040900 (NJ) Primary
207ZB0001X Blood Banking & Transfusion Medicine Physician Allopathic & Osteopathic Physicians · License 1021675 (MA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

What is the NPI number for Robert Arena?
The National Provider Identifier (NPI) for Robert Arena is 1225298318, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Arena practice?
The practice location on file with NPPES is in Worcester, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-21.