Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen M Simon, M.D.

Cardiovascular Disease Physician in Brunswick, ME · enumerated 2006.

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

National Provider Identifier

1649227331

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Registry record

Entity type Individual (Type 1)

Name Ellen M Simon

Credential M.D.

Sex Female

Practice address 121 Medical Center Dr, Suite 3100, Brunswick, ME, 04011

Phone (207) 729-7939

Fax (207) 725-4717

Enumeration date May 28, 2006

Last updated in NPPES May 9, 2017

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 160838 (MA) Secondary

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 160838 (MA) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD16225 (ME) Primary

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

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1649227331 active?

Yes, as of the latest NPPES snapshot, NPI 1649227331 is active (record last updated 2017-05-09).

How do I verify Ellen Simon's NPI record?

Cross-check NPI 1649227331 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-09.