Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron Samuel Ratner, DO, MS

Emergency Medicine Physician in Farmington, ME · enumerated 2011.

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

National Provider Identifier

1063708766

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Registry record

Entity type Individual (Type 1)

Name Dr. Aaron Samuel Ratner

Credential DO, MS

Sex Male

Practice address 111 Franklin Health Cmns, Farmington, ME, 04938

Phone (207) 778-6031

Fax (207) 779-2632

Enumeration date Jun 22, 2011

Last updated in NPPES Mar 19, 2026

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License OT014189 (PA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DO3925 (ME) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License OS016425 (PA) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License LT4005 (ME) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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.

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Frequently asked questions

How do I verify Aaron Ratner's NPI record?

Cross-check NPI 1063708766 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1063708766 active?

Yes, as of the latest NPPES snapshot, NPI 1063708766 is active (record last updated 2026-03-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-19.