Quick answers
- Which hospitals does Mark S. Baran work at?
- Medicare's official clinician data lists Mark S. Baran at 5 hospitals: Gettysburg Hospital, Greater Baltimore Medical Center, Meritus Medical Center, WellSpan Chambersburg Hospital and WellSpan York Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark S. Baran see patients?
- Medicare's clinician data lists 12 practice locations, including York, PA, Timonium, MD and Towson, MD. Call before your visit to confirm the address.
- What is Mark S. Baran's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Mark S. Baran accept Medicare assignment?
- Yes. Medicare's clinician data says Mark S. Baran 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 Mark S. Baran?
- (717) 851-4005, as listed in official Medicare / NPI Registry data.
- What is Mark S. Baran's NPI number?
- 1720174386. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark S. Baran works
Medicare's Facility Affiliation Data lists Mark S. Baran at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Gettysburg HospitalGettysburg, PA · Acute Care Hospital · CCN 390065
- Greater Baltimore Medical CenterBaltimore, MD · Acute Care Hospital · CCN 210044
- Meritus Medical CenterHagerstown, MD · Acute Care Hospital · CCN 210001
- WellSpan Chambersburg HospitalChambersburg, PA · Acute Care Hospital · CCN 390151
- WellSpan York HospitalYork, PA · Acute Care Hospital · CCN 390046
Practice locations
Addresses where Mark S. Baran is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 12; the Medicare profile lists all.
- 1001 S George StYork, PA 17403 (717) 851‑4005
- 2405 York Rd, Suite 103Timonium, MD 21093 (443) 841‑7668
- 3701 N Charles St, South Chapman Building Suite 102Towson, MD 21204
- 6565 N Charles StBaltimore, MD 21204
- 6565 N Charles Street, 201 Pulmonary Medicine at GbmcBaltimore, MD 21204 (443) 849‑3901
Group practices
Medicare enrollment lists Mark S. Baran as a member of these groups (CMS data updated 2026-10-02).
- WellSpan Medical Group2,480 clinicians in the group
- Greater Baltimore Medical Center354 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in York
Clinicians with the same Medicare primary specialty in York, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720174386 |
| 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