Quick answers
- Which hospitals does Andrew L. Mermelstein work at?
- Medicare's official clinician data lists Andrew L. Mermelstein at 5 hospitals: Doylestown Hospital, Hospital of University of Pennsylvania, Jefferson Einstein Montgomery Hospital, Paoli Hospital and St Luke's Hospital - Grand View Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew L. Mermelstein see patients?
- Medicare's clinician data lists 3 practice locations, including East Norriton, PA, Cranberry Twp, PA and Colmar, PA. Call before your visit to confirm the address.
- What is Andrew L. Mermelstein's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Andrew L. Mermelstein accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew L. Mermelstein 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.
- Does Andrew L. Mermelstein offer telehealth?
- Medicare's clinician data says Andrew L. Mermelstein offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Andrew L. Mermelstein?
- (215) 997-8530, as listed in official Medicare / NPI Registry data.
- What is Andrew L. Mermelstein's NPI number?
- 1215920335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew L. Mermelstein works
Medicare's Facility Affiliation Data lists Andrew L. Mermelstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Doylestown HospitalDoylestown, PA · Acute Care Hospital · CCN 390203
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · CCN 390111
- Jefferson Einstein Montgomery HospitalEast Norriton, PA · Acute Care Hospital · CCN 390329
- Paoli HospitalPaoli, PA · Acute Care Hospital · CCN 390153
- St Luke's Hospital - Grand View CampusSellersville, PA · Acute Care Hospital · CCN 390057
Practice locations
Addresses where Andrew L. Mermelstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 170 W Germantown Pike, Suite C2East Norriton, PA 19401
- 2000 Westinghouse Dr, Suite 200Cranberry Twp, PA 16066
- 262 A Bethlehem Pike, Suite 100Colmar, PA 18915 (215) 997‑8530
Group practices
Medicare enrollment lists Andrew L. Mermelstein as a member of these groups (CMS data updated 2026-10-02).
- Phoenix Rehabilitation and Health Services Inc2,800 clinicians in the group
- Rheumatology Associates Ltd5 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in East Norriton
Clinicians with the same Medicare primary specialty in East Norriton, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1215920335 |
| 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