Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cynthia Earhart Martin, MD

Hospice and Palliative Medicine (Internal Medicine) Physician in Cottonwood, AZ · enumerated 2006 · practices at Northern Arizona Healthcare.

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

National Provider Identifier

1346290962

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Registry record

Entity type Individual (Type 1)

Name Cynthia Earhart Martin

Credential MD

Sex Female

Practice address 340 S Willard St, Cottonwood, AZ, 86326

Phone (928) 639-6025

Fax (928) 639-6541

Enumeration date May 12, 2006

Last updated in NPPES Jun 2, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 32051 (AZ) Secondary

207RH0002X Hospice and Palliative Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 32051 (AZ) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 32051 (AZ) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
840513	Medicaid	AZ	-

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

What specialty is Cynthia Martin?

Cynthia Martin is registered in NPPES with the primary taxonomy of Hospice and Palliative Medicine (Internal Medicine) Physician. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-02.