Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert A Ryan, O.D.
Optometrist in Rochester, NY · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851398630
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Registry record
Entity type Individual (Type 1)
Name Robert A Ryan
Credential O.D.
Sex Male
Practice address 169 Rue De Vl, Rochester, NY, 14618
Phone (585) 271-2990
Fax (585) 271-6321
Enumeration date Jul 7, 2005
Last updated in NPPES Jul 5, 2023
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01594870 | Medicaid | NY | - |
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.
Frequently asked questions
What is the NPI number for Robert Ryan?
The National Provider Identifier (NPI) for Robert Ryan is 1851398630, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Ryan practice?
The practice location on file with NPPES is in Rochester, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-05.