Quick answers
- Which hospitals does John J. Chiaffitelli work at?
- Medicare's official clinician data lists John J. Chiaffitelli at 5 hospitals: Carnegie Tri-County Municipal Hospital, Mangum Regional Medical Center, O U Medical Center, Pawhuska Hospital, Inc and Seiling Municipal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Chiaffitelli see patients?
- Medicare's clinician data lists 12 practice locations, including Mangum, OK, Carnegie, OK and Pawhuska, OK. Call before your visit to confirm the address.
- What is John J. Chiaffitelli's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John J. Chiaffitelli accept Medicare assignment?
- Medicare's clinician data says John J. Chiaffitelli may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for John J. Chiaffitelli?
- (580) 782-3353, as listed in official Medicare / NPI Registry data.
- What is John J. Chiaffitelli's NPI number?
- 1053391672. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John J. Chiaffitelli works
Medicare's Facility Affiliation Data lists John J. Chiaffitelli at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Carnegie Tri-County Municipal HospitalCarnegie, OK · Critical Access Hospital · CCN 371334
- Mangum Regional Medical CenterMangum, OK · Critical Access Hospital · CCN 371330
- O U Medical CenterOklahoma City, OK · Acute Care Hospital · CCN 370093
- Pawhuska Hospital, IncPawhuska, OK · Critical Access Hospital · CCN 371309
- Seiling Municipal HospitalSeiling, OK · Critical Access Hospital · CCN 371332
Practice locations
Addresses where John J. Chiaffitelli is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 12; the Medicare profile lists all.
- 1 Wickersham StMangum, OK 73554 (580) 782‑3353
- 102 N BroadwayCarnegie, OK 73015 (580) 654‑1050
- 1101 E 15th StPawhuska, OK 74056 (918) 287‑3232
- 1109 E 15th St, Pawhuska Family Medical ClinicPawhuska, OK 74056 (918) 287‑5151
- 118 S Louis Tittle Ave, Mangum ClinicMangum, OK 73554 (580) 782‑3353
Group practices
Medicare enrollment lists John J. Chiaffitelli as a member of these groups (CMS data updated 2026-10-02).
- Seiling Municipal Hospital Authority15 clinicians in the group
- CAH Acquisition Company 9 LLC14 clinicians in the group
- Pawhuska Hospital Inc13 clinicians in the group
- Carnegie Tri-County Municipal Hospital Management Inc12 clinicians in the group
- Mangum City Hospital Authority10 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Oklahoma
Clinicians with the same Medicare primary specialty in Oklahoma — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1053391672 |
| 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