Quick answers
- Which hospitals does Christopher P. John work at?
- Medicare's official clinician data lists Christopher P. John at 4 hospitals: Brooks-Tlc Hospital System, Inc, Kaleida Health, Olean General Hospital and UPMC Chautauqua at Wca. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Christopher P. John see patients?
- Medicare's clinician data lists 6 practice locations, including Williamsville, NY, Wellsville, NY and Jamestown, NY. Call before your visit to confirm the address.
- What is Christopher P. John's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Christopher P. John accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher P. John accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Christopher P. John?
- (716) 568-3600, as listed in official Medicare / NPI Registry data.
- What is Christopher P. John's NPI number?
- 1902996903. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christopher P. John works
Medicare's Facility Affiliation Data lists Christopher P. John at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Brooks-Tlc Hospital System, IncDunkirk, NY · Acute Care Hospital · CCN 330229
- Kaleida HealthBuffalo, NY · Acute Care Hospital · CCN 330005
- Olean General HospitalOlean, NY · Acute Care Hospital · CCN 330103
- UPMC Chautauqua at WcaJamestown, NY · Acute Care Hospital · CCN 330239
Practice locations
Addresses where Christopher P. John is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1540 Maple RdWilliamsville, NY 14221 (716) 568‑3600
- 191 N Main StWellsville, NY 14895 (585) 593‑1100
- 207 Foote AveJamestown, NY 14701
- 3898 Vineyard DrDunkirk, NY 14048 (716) 710‑8266
- 515 Main StOlean, NY 14760 (716) 375‑6993
Group practices
Medicare enrollment lists Christopher P. John as a member of these groups (CMS data updated 2026-10-02).
- General Physician PC501 clinicians in the group
- Olean General Hospital90 clinicians in the group
- Delphi Hospitalist Services LLC51 clinicians in the group
- UPMC Chautauqua at Wca26 clinicians in the group
- Brooks-Tlc Hospital System, Inc.10 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Williamsville
Clinicians with the same Medicare primary specialty in Williamsville, NY — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902996903 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians