Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Daniel Joseph Fanselow, D.C.

Neurology Chiropractor in Westboro, MA · enumerated 2005.

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

National Provider Identifier

1669473997

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Registry record

Entity type Individual (Type 1)

Name Dr. Daniel Joseph Fanselow

Credential D.C.

Sex Male

Practice address Westboro, MA, 01581

Phone (508) 366-3333

Fax (508) 366-3860

Enumeration date Aug 9, 2005

Last updated in NPPES Oct 8, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111NN0400X Neurology Chiropractor Chiropractic Providers · License 1420 (MA) Primary

111NN0400X Neurology Chiropractor Chiropractic Providers · License 000803 (CT) Secondary

111NN0400X Neurology Chiropractor Chiropractic Providers · License X005816 (NY) Secondary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
210554	Other	MA	AMERICAN SPECIALTY HEALTH
14312	Other	MA	FALLON
546258	Other	MA	US HEALTH CARE
9903976	Medicaid	MA	-
W200631	Other	MA	CIGNA
42083126	Other	MA	AETNA
4400279	Other	MA	UNITED HEALTHCARE
739970	Other	MA	TUFTS
043255443	Other	MA	TAX ID
35251	Other	MA	HARVARD PILGRIM HEALTHCAR
59090	Other	MA	FIRST HEALTH/HCVM
FAY35984	Other	MA	BLUE CROSS BLUE SHIELD

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 NPI 1669473997 active?

Yes, as of the latest NPPES snapshot, NPI 1669473997 is active (record last updated 2012-10-08).

How do I verify Daniel Fanselow's NPI record?

Cross-check NPI 1669473997 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-08.