NPI Portal NPI Lookup & Verification

Dian Kaye Martens, D.C.

Dian Kaye Martens is a Chiropractor provider (Chiropractor) practicing in Plainwell, MI, registered in the NPPES registry with NPI 1659371821 since 2005. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum

NPI 1659371821
Entity type Individual (Type 1)
Name Dian Kaye Martens
Credential D.C.
Sex Female
Practice address 321 S MAIN ST, Plainwell, MI, 49080
Phone 2696855486
Fax 2696859711
Enumeration date 2005-07-28
Last updated in NPPES 2008-04-22

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary 2301007035 MI

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

Other identifiers

Identifier Type State Issuer
3257741 Medicaid MI
0P43900 Other MI MEDICARE ADVANTAGE
950Z310550 Other MI BCBS
Copy-ready billing details
Provider: Dian Martens, D.C.
NPI: 1659371821
Taxonomy: 111N00000X (Chiropractor)
Address: 321 S MAIN ST, Plainwell, MI, 49080

Other providers at this practice address

NPI Name Type Specialty Location
1487650610 Christina Hoard Individual Chiropractor Plainwell, MI
1992844500 Dian K. Martens D.C. Inc. Organization Chiropractor Plainwell, MI
1659832004 Kelly Lester Individual Chiropractor Plainwell, MI
1467106211 Christina Hoard Chiropractic LLC Organization Chiropractor Plainwell, MI
1508562299 Dawn Decator Individual Massage Therapist Plainwell, MI

Verify this record

Cross-check NPI 1659371821 against the authoritative CMS record: view Dian Kaye Martens 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 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.
What specialty is Dian Martens?
Dian Martens 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-04-22.