Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Alan Clark, DO

Orthopaedic Surgery Physician in Cedar Falls, IA · enumerated 2006.

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

National Provider Identifier

1831143601

Verified

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Alan Clark

Credential DO

Sex Male

Practice address 2351 Hudson Road, Suite 001, Cedar Falls, IA, 50614

Phone (319) 273-5275

Fax (319) 273-5295

Enumeration date May 19, 2006

Last updated in NPPES Feb 4, 2022

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 3304 (IA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0215665	Medicaid	IA	-
19423	Other	IA	WELLMARK INS PLAN
421417307E4	Other	IA	JOHN DEERE HEALTH INS

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 1831143601 active?

Yes, as of the latest NPPES snapshot, NPI 1831143601 is active (record last updated 2022-02-04).

How do I verify Jeffrey Clark's NPI record?

Cross-check NPI 1831143601 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 2026-07-13. Provider record last updated 2022-02-04.