Quick answers
- Which hospitals does Charles E. Zierenberg work at?
- Medicare's official clinician data lists Charles E. Zierenberg at 2 hospitals: Hospital Universitario de Adulto and Rivers Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Charles E. Zierenberg see patients?
- Medicare's clinician data lists 1 practice location in Rio Piedras, PR. Call before your visit to confirm the address.
- What is Charles E. Zierenberg's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Charles E. Zierenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Charles E. Zierenberg 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 Charles E. Zierenberg?
- (787) 777-3535, as listed in official Medicare / NPI Registry data.
- What is Charles E. Zierenberg's NPI number?
- 1114992948. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Charles E. Zierenberg works
Medicare's Facility Affiliation Data lists Charles E. Zierenberg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital Universitario de AdultoRio Piedras, PR · Acute Care Hospital · CCN 400061
- Rivers HealthPoint Pleasant, WV · Acute Care Hospital · CCN 510012
Practice locations
Addresses where Charles E. Zierenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- Centro Medico De Pr, Bo Monacillos Adm De Servicios MedicosRio Piedras, PR 00935 (787) 777‑3535
Group practices
Medicare enrollment lists Charles E. Zierenberg as a member of this group (CMS data updated 2026-10-02).
- Recinto de Ciencias Medicas247 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Rio Piedras
Clinicians with the same Medicare primary specialty in Rio Piedras, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114992948 |
| 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