Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Edward A Ryan, MD

Q: What is the NPI number for Edward Ryan?

The National Provider Identifier (NPI) for Edward Ryan is 1083613186, a Type 1 (individual) record in the CMS NPPES registry.

Ophthalmology Physician in Winchester, MA · enumerated 2005.

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

National Provider Identifier

1083613186

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Registry record

Entity type Individual (Type 1)

Name Edward A Ryan

Credential MD

Sex Male

Practice address 955 Main St, Ste 108, Winchester, MA, 01890

Phone (787) 721-0447

Fax (781) 721-2250

Enumeration date Jul 20, 2005

Last updated in NPPES Oct 18, 2011

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 71171 (MA) Primary

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
2019191	Medicaid	MA	-

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 the NPI number for Edward Ryan?

The National Provider Identifier (NPI) for Edward Ryan is 1083613186, a Type 1 (individual) record in the CMS NPPES registry.

Where does Edward Ryan practice?

The practice location on file with NPPES is in Winchester, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-18.