Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joan M Osswald, N.P.
Nurse Practitioner in Buffalo, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588686307
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Registry record
Entity type Individual (Type 1)
Name Joan M Osswald
Credential N.P.
Sex Female
Practice address 397 Louisiana St, Buffalo, NY, 14204
Phone (716) 847-6610
Fax (716) 854-3052
Enumeration date Jul 24, 2006
Last updated in NPPES Jan 4, 2012
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 330889 (NY) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 9511996 | Other | NY | INDEPENDENT HEALTH |
| 040426001225 | Other | NY | FIDELIS |
| 000560100001 | Other | NY | BLUE CROSS OF WNY |
| 00026547501 | Other | NY | UNIVERA |
| 500018942 | Other | NY | RAILROAD MEDICARE |
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
Is NPI 1588686307 active?
Yes, as of the latest NPPES snapshot, NPI 1588686307 is active (record last updated 2012-01-04).
How do I verify Joan Osswald's NPI record?
Cross-check NPI 1588686307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Elisabeth Britton Family Medicine Physician · Buffalo, NY NPI 1902893860 Elaine Clutterbuck Advanced Practice Midwife · Buffalo, NY NPI 1124081070 Sarah Worrell Advanced Practice Midwife · Buffalo, NY NPI 1437114709 Gary Wysocki Physician Assistant · Buffalo, NY NPI 1568413102 Christine Hatem Pediatric Nurse Practitioner · Buffalo, NY NPI 1861423584 A. Korach Pediatric Nurse Practitioner · Buffalo, NY NPI 1528099298 Sheila Schieppati Family Nurse Practitioner · Buffalo, NY NPI 1184802118 Shahid Banday Internal Medicine Physician · Buffalo, NY NPI 1154656031
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-04.