Quick answers
- Which hospitals does John Abraham work at?
- Medicare's official clinician data lists John Abraham at 2 hospitals: Ascension St John Medical Center and St John Owasso. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Abraham see patients?
- Medicare's clinician data lists 4 practice locations, including Owasso, OK, Tulsa, OK and Muskogee, OK. Call before your visit to confirm the address.
- What is John Abraham's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does John Abraham accept Medicare assignment?
- Yes. Medicare's clinician data says John Abraham 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 John Abraham?
- (918) 274-5000, as listed in official Medicare / NPI Registry data.
- What is John Abraham's NPI number?
- 1962634535. 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 Abraham works
Medicare's Facility Affiliation Data lists John Abraham at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St John Medical CenterTulsa, OK · Acute Care Hospital · CCN 370114
- St John OwassoOwasso, OK · Acute Care Hospital · CCN 370227
Practice locations
Addresses where John Abraham is enrolled with Medicare (CMS data updated 2026-10-02).
- 12451 E 100th St NOwasso, OK 74055 (918) 274‑5000
- 1923 S Utica AveTulsa, OK 74104 (918) 744‑3131
- 300 Rockefeller DrMuskogee, OK 74401 (918) 684‑2101
- 3202 S Memorial Dr, Suite 9Tulsa, OK 74145 (918) 221‑0335
Group practices
Medicare enrollment lists John Abraham as a member of these groups (CMS data updated 2026-10-02).
- Usacs Observation Medicine Services of Oklahoma, LLC210 clinicians in the group
- Primary Care and Wellness of Tulsa, PLLC2 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Owasso
Clinicians with the same Medicare primary specialty in Owasso, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Morehouse School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962634535 |
| 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