Phyllis Christine Bessey, NP
Phyllis Christine Bessey is a Nurse Practitioner provider (Nurse Practitioner) practicing in Olean, NY, registered in the NPPES registry with NPI 1023003399 since 2005. The credential NP stands for Nurse Practitioner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1023003399 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Phyllis Christine Bessey |
| Credential | NP |
| Sex | Female |
| Practice address | 535 MAIN ST, Olean, NY, 14760 |
| Phone | 7163720141 |
| Fax | 7163736632 |
| Enumeration date | 2005-09-13 |
| Last updated in NPPES | 2010-03-30 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 363L00000X | Nurse Practitioner | Primary | F334618 | NY |
NP — Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential
Copy-ready billing details
Provider: Phyllis Bessey, NP NPI: 1023003399 Taxonomy: 363L00000X (Nurse Practitioner) Address: 535 MAIN ST, Olean, NY, 14760
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1750380242 | Othoniel Castro | Individual | Neurology Physician | Olean, NY |
| 1386643781 | William Cihak | Individual | Internal Medicine Physician | Olean, NY |
| 1578562179 | John Balacki | Individual | Gastroenterology Physician | Olean, NY |
| 1467451658 | Ricardo Ilustre | Individual | Pediatrics Physician | Olean, NY |
| 1407855679 | Johanna Handley | Individual | Family Medicine Physician | Olean, NY |
| 1518966746 | G Spigel | Individual | Dermatology Physician | Olean, NY |
| 1598764730 | Gilbert Witte | Individual | Pulmonary Disease Physician | Olean, NY |
| 1093714230 | Fred Lewis | Individual | Allergy & Immunology Physician | Olean, NY |
Verify this record
Cross-check NPI 1023003399 against the authoritative CMS record: view Phyllis Christine Bessey on the official NPPES registry .
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 or validate an NPI number.
Frequently asked questions
Where does Phyllis Bessey practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-03-30.