Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dennis P Ratner Phd PA

Q: What type of organization is Dennis P Ratner Phd PA?

Dennis P Ratner Phd PA is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Clinical Psychologist in Waterville, ME · enumerated 2013 · authorized official Dennis Ratner, President.

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

National Provider Identifier

1528301892

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Registry record

Entity type Organization (Type 2)

Legal business name Dennis P Ratner Phd PA

Practice address 2 Elm Street, Waterville, ME, 04901

Phone (207) 872-9578

Fax (207) 872-9578

Enumeration date Apr 4, 2013

Last updated in NPPES Jun 6, 2013

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS412 (ME) Primary

Authorized official

Name Dennis Ratner

Title President

Phone (207) 872-9578

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 is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Dennis P Ratner Phd PA?

Dennis P Ratner Phd PA is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-06.