Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Cristina Ann Clark, RDN, ATC, C-PT

Registered Dietitian in Hampden, ME · enumerated 2016.

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

National Provider Identifier

1871953638

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Registry record

Entity type Individual (Type 1)

Name Cristina Ann Clark

Credential RDN, ATC, C-PT

Sex Female

Practice address Hampden, ME, 04444

Phone (207) 717-9224

Enumeration date Mar 7, 2016

Last updated in NPPES Nov 21, 2025

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

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License AT560 (ME) Secondary

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 86303770 Primary

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 Cristina Clark?

Cristina Clark is registered in NPPES with the primary taxonomy of Registered Dietitian. 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 2026-07-13. Provider record last updated 2025-11-21.