NPI Portal NPI Lookup & Verification

Dr. William F Clark, D.C.

Dr. William F Clark is a Rehabilitation Chiropractor provider (Chiropractor) practicing in Cromwell, CT, registered in the NPPES registry with NPI 1740360049 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1740360049
Entity type Individual (Type 1)
Name Dr. William F Clark
Credential D.C.
Sex Male
Practice address Cromwell, CT, 06416
Phone 8606321668
Fax 8606321672
Enumeration date 2006-10-17
Last updated in NPPES 2012-02-01

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111NR0400X Rehabilitation Chiropractor Primary 001321 CT

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
Copy-ready billing details
Provider: William Clark, D.C.
NPI: 1740360049
Taxonomy: 111NR0400X (Rehabilitation Chiropractor)
Address: Cromwell, CT, 06416

Other providers at this practice address

NPI Name Type Specialty Location
1548532831 Clark Chiropractic Center, LLC Organization Rehabilitation Chiropractor Cromwell, CT
1366804452 Ct Men'S Health, LLC Organization General Practice Physician Cromwell, CT
1437506656 Ct Psych Now LLC Organization Clinical Social Worker Cromwell, CT

Verify this record

Cross-check NPI 1740360049 against the authoritative CMS record: view Dr. William F Clark on the official NPPES registry .

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 or validate an NPI number.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-02-01.