Quick answers
- Which hospitals does Mark Gilbert work at?
- Medicare's official clinician data lists Mark Gilbert at 2 hospitals: Main Line Hospital Lankenau and Riddle Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Gilbert see patients?
- Medicare's clinician data lists 1 practice location in Darby, PA. Call before your visit to confirm the address.
- What is Mark Gilbert's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Mark Gilbert accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Gilbert 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 Gilbert?
- (610) 237-5816, as listed in official Medicare / NPI Registry data.
- What is Mark Gilbert's NPI number?
- 1366443855. 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 Gilbert works
Medicare's Facility Affiliation Data lists Mark Gilbert at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · CCN 390195
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · CCN 390222
Practice locations
Addresses where Mark Gilbert is enrolled with Medicare (CMS data updated 2026-10-02).
- 1503 Lansdowne Ave, Suite 3010Darby, PA 19023 (610) 237‑5816
Group practices
Medicare enrollment lists Mark Gilbert as a member of this group (CMS data updated 2026-10-02).
- Infectious Diseases Medical Associates LLC5 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366443855 |
| 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