Quick answers
- Which hospitals does Anthony O. Pena work at?
- Medicare's official clinician data lists Anthony O. Pena at 2 hospitals: Hca-Healthone dba Swedish Medical Center and St Peters Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Anthony O. Pena see patients?
- Medicare's clinician data lists 2 practice locations, including Helena, MT and Englewood, CO. Call before your visit to confirm the address.
- What is Anthony O. Pena's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Anthony O. Pena accept Medicare assignment?
- Yes. Medicare's clinician data says Anthony O. 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 Anthony O. Pena?
- (406) 447-2828, as listed in official Medicare / NPI Registry data.
- What is Anthony O. Pena's NPI number?
- 1184184335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Anthony O. Pena works
Medicare's Facility Affiliation Data lists Anthony O. Pena at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hca-Healthone dba Swedish Medical CenterEnglewood, CO · Acute Care Hospital · CCN 060034
- St Peters HealthHelena, MT · Acute Care Hospital · CCN 270003
Practice locations
Addresses where Anthony O. Pena is enrolled with Medicare (CMS data updated 2026-10-02).
- 2550 E Broadway StHelena, MT 59601 (406) 447‑2828
- 501 E Hamden AveEnglewood, CO 80113 (303) 788‑5000
Group practices
Medicare enrollment lists Anthony O. Pena as a member of these groups (CMS data updated 2026-10-02).
- St Peters Health199 clinicians in the group
- Hospital Medicine Services of Colorado, LLC71 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Helena
Clinicians with the same Medicare primary specialty in Helena, MT — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184184335 |
| 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