Quick answers
- Which hospitals does Mary M. Pena work at?
- Medicare's official clinician data lists Mary M. Pena at 2 hospitals: Baptist Memorial Hospital and Baxter Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary M. Pena see patients?
- Medicare's clinician data lists 5 practice locations, including Benton, AR, Oxford, MS and Memphis, TN. Call before your visit to confirm the address.
- What is Mary M. Pena's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Mary M. Pena accept Medicare assignment?
- Yes. Medicare's clinician data says Mary M. Pena 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 Mary M. Pena?
- (501) 776-6000, as listed in official Medicare / NPI Registry data.
- What is Mary M. Pena's NPI number?
- 1043441652. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary M. Pena works
Medicare's Facility Affiliation Data lists Mary M. Pena at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baptist Memorial HospitalMemphis, TN · Acute Care Hospital · CCN 440048
- Baxter HealthMountain Home, AR · Acute Care Hospital · CCN 040027
Practice locations
Addresses where Mary M. Pena is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Medical Park DrBenton, AR 72015 (501) 776‑6000
- 499 Azalea DrOxford, MS 38655 (662) 234‑7979
- 6019 Walnut Grove RdMemphis, TN 38120 (901) 226‑5000
- 6225 Humphreys BlvdMemphis, TN 38120 (904) 227‑9000
- 9300 Park W BlvdKnoxville, TN 37923 (865) 546‑8040
Group practices
Medicare enrollment lists Mary M. Pena as a member of these groups (CMS data updated 2026-10-02).
- American Anesthesiology of Tennessee PC298 clinicians in the group
- Arkansas Anesthesia Associates PLLC83 clinicians in the group
- Willow Anesthesia Services LLC55 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Arkansas →
Other nurse anesthetists in Benton
Clinicians with the same Medicare primary specialty in Benton, AR — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043441652 |
| 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