Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diane P Ryan, FNP
Nurse Practitioner in Buffalo, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346250966
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Registry record
Entity type Individual (Type 1)
Name Diane P Ryan
Credential FNP
Sex Female
Practice address 3435 Bailey Ave, Buffalo, NY, 14215
Phone (716) 835-2966
Fax (716) 834-3901
Enumeration date Aug 8, 2006
Last updated in NPPES Aug 23, 2014
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F334222-1 (NY) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan.
About the FNP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 161573456 | Other | - | COMMERCIAL INSURANCES |
| 00027603901 | Other | NY | UNIVERA |
| 02780798 | Medicaid | NY | - |
| 9512761 | Other | NY | INDEPENDENT HEALTH |
| 000560507006 | Other | NY | BC/BS OF WNY |
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 Diane Ryan?
The National Provider Identifier (NPI) for Diane Ryan is 1346250966, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diane Ryan practice?
The practice location on file with NPPES is in Buffalo, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Shelley Wojtaszczyk Family Nurse Practitioner · Buffalo, NY NPI 1326034752 Phong Nguyen-Ho Interventional Cardiology Physician · Buffalo, NY NPI 1356320204 Buffalo Heart Group Specialist · Buffalo, NY NPI 1528000106 Kathleen Ruggiero Family Nurse Practitioner · Buffalo, NY NPI 1205870177 Michael Banas Cardiovascular Disease Physician · Buffalo, NY NPI 1447283288 Marie Iacona Cardiovascular Disease Physician · Buffalo, NY NPI 1649294430 Joseph Gelormini Cardiovascular Disease Physician · Buffalo, NY NPI 1790790442 Robert Gianfagna Cardiovascular Disease Physician · Buffalo, NY NPI 1386650943
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-23.