Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Arun Rajan, M.D.
Specialist in Dartmouth, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609825181
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Registry record
Entity type Individual (Type 1)
Name Arun Rajan
Credential M.D.
Sex Male
Practice address 237a State Rd, Dartmouth, MA, 02747
Phone (508) 993-9760
Fax (508) 993-9764
Enumeration date May 10, 2006
Last updated in NPPES Dec 3, 2020
Taxonomy & licenses
2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License ME120314 (FL) Secondary
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 |
|---|---|---|---|
| 2630520 | Other | MA | US HEALTHCARE |
| 000000022318 | Other | MA | BMC HEALTHNET |
| 0024509 | Other | MA | NEIGHBORHOOD HEALTH PLAN |
| 0502404 | Other | MA | UNITED HEALTHCARE |
| B20842101 | Other | MA | CIGNA |
| 409362 | Other | MA | BLUE CHIP RI |
| 04-3568655 | Other | MA | HEALTHCARE VALUE MANAGEME |
| 42413508 | Other | MA | CHAMPUS |
| 156818 | Other | MA | TUFTS/SECURE HORIZONS |
| 5371644 | Other | MA | AETNA |
| 111002 | Other | MA | HARVARD PILGRIM |
| 13002002 | Other | MA | RAILROAD MEDICARE |
| 3180221 | Medicaid | MA | - |
| J19034 | Other | MA | BC/BS |
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.
Frequently asked questions
Is NPI 1609825181 active?
Yes, as of the latest NPPES snapshot, NPI 1609825181 is active (record last updated 2020-12-03).
How do I verify Arun Rajan's NPI record?
Cross-check NPI 1609825181 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-03.