Quick answers
- Which hospitals does Aaron Simms work at?
- Medicare's official clinician data lists Aaron Simms at 1 hospital: Fort Duncan Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Aaron Simms see patients?
- Medicare's clinician data lists 1 practice location in Eagle Pass, TX. Call before your visit to confirm the address.
- What is Aaron Simms's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Aaron Simms accept Medicare assignment?
- Yes. Medicare's clinician data says Aaron Simms 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 Aaron Simms?
- (830) 773-5321, as listed in official Medicare / NPI Registry data.
- What is Aaron Simms's NPI number?
- 1578593216. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Aaron Simms works
Medicare's Facility Affiliation Data lists Aaron Simms at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Fort Duncan Medical CenterEagle Pass, TX · Acute Care Hospital · CCN 450092
Practice locations
Addresses where Aaron Simms is enrolled with Medicare (CMS data updated 2026-10-02).
- 3333 N Foster Maldonado BlvdEagle Pass, TX 78852 (830) 773‑5321
Group practices
Medicare enrollment lists Aaron Simms as a member of this group (CMS data updated 2026-10-02).
- Maverick Emergency Medicine Associates PA11 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Eagle Pass
Clinicians with the same Medicare primary specialty in Eagle Pass, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578593216 |
| 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