Quick answers
- Which hospitals does Nasser Janbay work at?
- Medicare's official clinician data lists Nasser Janbay at 4 hospitals: Mercy Hospital Kingfisher, Inc, Mercy Hospital Logan County, Mercy Hospital Oklahoma City, Inc and Oklahoma Heart Hospital, LLC. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nasser Janbay see patients?
- Medicare's clinician data lists 1 practice location in Ada, OK. Call before your visit to confirm the address.
- What is Nasser Janbay's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does Nasser Janbay accept Medicare assignment?
- Yes. Medicare's clinician data says Nasser Janbay 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.
- Does Nasser Janbay offer telehealth?
- Medicare's clinician data says Nasser Janbay offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Nasser Janbay?
- (580) 332-2323, as listed in official Medicare / NPI Registry data.
- What is Nasser Janbay's NPI number?
- 1699768374. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nasser Janbay works
Medicare's Facility Affiliation Data lists Nasser Janbay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital Kingfisher, IncKingfisher, OK · Critical Access Hospital · CCN 371313
- Mercy Hospital Logan CountyGuthrie, OK · Critical Access Hospital · CCN 371317
- Mercy Hospital Oklahoma City, IncOklahoma City, OK · Acute Care Hospital · CCN 370013
- Oklahoma Heart Hospital, LLCOklahoma City, OK · Acute Care Hospital · CCN 370215
Practice locations
Addresses where Nasser Janbay is enrolled with Medicare (CMS data updated 2026-10-02).
- 430 N Monte Vista StAda, OK 74820 (580) 332‑2323
Group practices
Medicare enrollment lists Nasser Janbay as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic Oklahoma Communities649 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Ada
Clinicians with the same Medicare primary specialty in Ada, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699768374 |
| 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