NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Paul David Carlan, M.D.

Internal Medicine Physician in Greenfield, MA · enumerated 2005.

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

National Provider Identifier

1770582603

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Paul David Carlan
Credential M.D.
Sex Male
Practice address 329 Conway St, Greenfield, MA, 01301
Fax (866) 644-0871
Enumeration date Jul 21, 2005
Last updated in NPPES Jul 11, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 221540 (MA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 221540 (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
1979896001 Other MA CIGNA HEALTH PLANS
467560 Other MA TUFTS HEALTH PLAN
99439 Other MA FALLON COMMUNITY HEALTH PLAN
2082934 Medicaid MA -
221540 Other MA CONNECTICARE
AA19115 Other MA HARVARD PILGRIM HEALTHCARE
3640514 Other MA AETNA/US HEALTHCARE
34981 Other MA HEALTH NEW ENGLAND
J28015 Other MA BLUE CROSS & BLUE SHIELD
000000028884 Other MA BOSTON MEDICAL CENTER HEALTHNET PLAN

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

Where does Paul Carlan practice?
The practice location on file with NPPES is in Greenfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Paul Carlan?
The National Provider Identifier (NPI) for Paul Carlan is 1770582603, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-11.