Quick answers
- Which hospitals does James G. Marks Jr. work at?
- Medicare's official clinician data lists James G. Marks Jr. at 1 hospital: Milton S Hershey Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James G. Marks Jr. see patients?
- Medicare's clinician data lists 1 practice location in Hershey, PA. Call before your visit to confirm the address.
- What is James G. Marks Jr.'s specialty?
- Medicare lists Dermatology as the primary specialty.
- Does James G. Marks Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says James G. Marks Jr. 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 James G. Marks Jr.?
- (717) 531-8307, as listed in official Medicare / NPI Registry data.
- What is James G. Marks Jr.'s NPI number?
- 1366406746. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James G. Marks Jr. works
Medicare's Facility Affiliation Data lists James G. Marks Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Milton S Hershey Medical CenterHershey, PA · Acute Care Hospital · CCN 390256
Practice locations
Addresses where James G. Marks Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 500 Universidy Dr, A410Hershey, PA 17033 (717) 531‑8307
Group practices
Medicare enrollment lists James G. Marks Jr. as a member of this group (CMS data updated 2026-10-02).
- The Milton S Hershey Medical Center Physicians Group1,623 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Hershey
Clinicians with the same Medicare primary specialty in Hershey, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 1971 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366406746 |
| 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