Quick answers
- Which hospitals does Fatima Mahmood work at?
- Medicare's official clinician data lists Fatima Mahmood at 5 hospitals: Arbuckle Memorial Hospital Authority, Exceptional Community Hospital Ardmore, Mercy Hospital Ardmore, Inc, Mercy Hospital Healdton, Inc. and Mercy Hospital Tishomingo Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Fatima Mahmood see patients?
- Medicare's clinician data lists 1 practice location in Ardmore, OK. Call before your visit to confirm the address.
- What is Fatima Mahmood's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Fatima Mahmood accept Medicare assignment?
- Yes. Medicare's clinician data says Fatima Mahmood 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 Fatima Mahmood?
- (580) 220-6132, as listed in official Medicare / NPI Registry data.
- What is Fatima Mahmood's NPI number?
- 1255959045. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Fatima Mahmood works
Medicare's Facility Affiliation Data lists Fatima Mahmood at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Arbuckle Memorial Hospital AuthoritySulphur, OK · Critical Access Hospital · CCN 371328
- Exceptional Community Hospital ArdmoreArdmore, OK · Acute Care Hospital · CCN 370247
- Mercy Hospital Ardmore, IncArdmore, OK · Acute Care Hospital · CCN 370047
- Mercy Hospital Healdton, Inc.Healdton, OK · Critical Access Hospital · CCN 371310
- Mercy Hospital Tishomingo IncTishomingo, OK · Critical Access Hospital · CCN 371304
Practice locations
Addresses where Fatima Mahmood is enrolled with Medicare (CMS data updated 2026-10-02).
- 1011 14th Ave NWArdmore, OK 73401 (580) 220‑6132
Group practices
Medicare enrollment lists Fatima Mahmood as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic Oklahoma Communities649 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Ardmore
Clinicians with the same Medicare primary specialty in Ardmore, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255959045 |
| 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