Quick answers
- Which hospitals does Lawrence B. Grossman work at?
- Medicare's official clinician data lists Lawrence B. Grossman at 4 hospitals: Hospital of University of Pennsylvania, Phoenixville Hospital, Pottstown Hospital and Reading Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lawrence B. Grossman see patients?
- Medicare's clinician data lists 1 practice location in Limerick, PA. Call before your visit to confirm the address.
- What is Lawrence B. Grossman's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Lawrence B. Grossman accept Medicare assignment?
- Yes. Medicare's clinician data says Lawrence B. Grossman 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 Lawrence B. Grossman?
- (484) 938-4030, as listed in official Medicare / NPI Registry data.
- What is Lawrence B. Grossman's NPI number?
- 1477618270. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lawrence B. Grossman works
Medicare's Facility Affiliation Data lists Lawrence B. Grossman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · CCN 390111
- Phoenixville HospitalPhoenixville, PA · Acute Care Hospital · CCN 390127
- Pottstown HospitalPottstown, PA · Acute Care Hospital · CCN 390123
- Reading HospitalWest Reading, PA · Acute Care Hospital · CCN 390044
Practice locations
Addresses where Lawrence B. Grossman is enrolled with Medicare (CMS data updated 2026-10-02).
- 420 W Linfield Trappe Rd, Gastroenterology LimerickLimerick, PA 19468 (484) 938‑4030
Group practices
Medicare enrollment lists Lawrence B. Grossman as a member of this group (CMS data updated 2026-10-02).
- Clinical Care Associates of the University of Pennsylvania Health.598 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477618270 |
| 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