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

Dr. William F Clark, D.C.

Rehabilitation Chiropractor in Cromwell, CT · enumerated 2006.

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

National Provider Identifier

1740360049

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Registry record

Entity type Individual (Type 1)

Name Dr. William F Clark

Credential D.C.

Sex Male

Practice address Cromwell, CT, 06416

Phone (860) 632-1668

Fax (860) 632-1672

Enumeration date Oct 17, 2006

Last updated in NPPES Feb 1, 2012

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

Taxonomy & licenses

111NR0400X Rehabilitation Chiropractor Chiropractic Providers · License 001321 (CT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
132100	Other	-	CONNECTICARE
905871CONN	Other	-	PHCS PRIVATE HEALTHCARE SYSTEMS
U75980	Other	-	WEBSTER
P2773574	Other	-	OXFORD
611244	Other	-	ACN AMERICAN CHIROPRACTIC NETWORK
7139035	Other	-	AETNA
U75980	Other	-	LIBERTY MUTUAL
050001321CT02	Other	-	ANTHEM BLUE CROSS BLUE SHIELD
44-04334	Other	-	UNITED HEALTHCARE
1397991	Other	-	AIG
U75980	Other	-	HMC HEALTH MANAGEMENT CENTER
U75980	Other	-	GAB ROBBINS

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.

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Frequently asked questions

Is NPI 1740360049 active?

Yes, as of the latest NPPES snapshot, NPI 1740360049 is active (record last updated 2012-02-01).

How do I verify William Clark's NPI record?

Cross-check NPI 1740360049 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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Clark Chiropractic Center, LLC Rehabilitation Chiropractor · Cromwell, CT NPI 1548532831 Ct Men'S Health, LLC General Practice Physician · Cromwell, CT NPI 1366804452 Ct Psych Now LLC Clinical Social Worker · Cromwell, CT NPI 1437506656

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-01.