NPI Portal NPI Lookup & Verification

Dr. Craig Joseph Martin, DC

Dr. Craig Joseph Martin is a Chiropractor provider (Chiropractor) practicing in Appleton, WI, registered in the NPPES registry with NPI 1992905038 since 2007. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1992905038
Entity type Individual (Type 1)
Name Dr. Craig Joseph Martin
Credential DC
Sex Male
Practice address Appleton, WI, 54911
Phone 9208304050
Fax 9207344578
Enumeration date 2007-07-18
Last updated in NPPES 2007-07-18

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary 3059 WI

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

Copy-ready billing details
Provider: Craig Martin, DC
NPI: 1992905038
Taxonomy: 111N00000X (Chiropractor)
Address: Appleton, WI, 54911

Other providers at this practice address

NPI Name Type Specialty Location
1942255104 Bedford Hines Individual Mental Health Counselor Appleton, WI
1710073804 Robert Burkham Individual Psychologist Appleton, WI
1649354077 Wellness Counseling Center, L.L.C. Organization Mental Health Counselor Appleton, WI
1790847655 Ellen Needham Individual Mental Health Counselor Appleton, WI
1578625539 Jane Keggi Individual Psychologist Appleton, WI
1174672000 Diane Wizner Individual Professional Counselor Appleton, WI
1104960376 Cary Backenger Individual Addiction (Substance Use Disorder) Counselor Appleton, WI
1679720650 Gerald Metalsky Individual Clinical Psychologist Appleton, WI

Verify this record

Cross-check NPI 1992905038 against the authoritative CMS record: view Dr. Craig Joseph Martin 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

What specialty is Craig Martin?
Craig Martin is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-18.