Quick answers
- Which hospitals does Irem Nasir work at?
- Medicare's official clinician data lists Irem Nasir at 3 hospitals: Lancaster General Hospital, Penn State Health Lancaster Medical Center and St John's Riverside Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Irem Nasir see patients?
- Medicare's clinician data lists 3 practice locations, including Lancaster, PA and Yonkers, NY. Call before your visit to confirm the address.
- What is Irem Nasir's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Irem Nasir accept Medicare assignment?
- Yes. Medicare's clinician data says Irem Nasir 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 Irem Nasir?
- (717) 821-7443, as listed in official Medicare / NPI Registry data.
- What is Irem Nasir's NPI number?
- 1205018124. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Irem Nasir works
Medicare's Facility Affiliation Data lists Irem Nasir at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lancaster General HospitalLancaster, PA · Acute Care Hospital · CCN 390100
- Penn State Health Lancaster Medical CenterLancaster, PA · Acute Care Hospital · CCN 390339
- St John's Riverside HospitalYonkers, NY · Acute Care Hospital · CCN 330208
Practice locations
Addresses where Irem Nasir is enrolled with Medicare (CMS data updated 2026-10-02).
- 2160 State RdLancaster, PA 17601 (717) 821‑7443
- 967 N BdwayYonkers, NY 10701 (914) 798‑8956
- 967 N BroadwayYonkers, NY 10701
Group practices
Medicare enrollment lists Irem Nasir as a member of these groups (CMS data updated 2026-10-02).
- Penn State Health Medical Group LLC734 clinicians in the group
- Symphony Medical PC55 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205018124 |
| 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