Quick answers
- Which hospitals does Janson Jacob work at?
- Medicare's official clinician data lists Janson Jacob at 4 hospitals: Bryn Mawr Hospital, Main Line Hospital Lankenau, Paoli Hospital and Riddle Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Janson Jacob see patients?
- Medicare's clinician data lists 4 practice locations, including Wynnewood, PA, Media, PA and Lancaster, PA. Call before your visit to confirm the address.
- What is Janson Jacob's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Janson Jacob accept Medicare assignment?
- Yes. Medicare's clinician data says Janson Jacob 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 Janson Jacob?
- (610) 896-7360, as listed in official Medicare / NPI Registry data.
- What is Janson Jacob's NPI number?
- 1629638614. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Janson Jacob works
Medicare's Facility Affiliation Data lists Janson Jacob at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bryn Mawr HospitalBryn Mawr, PA · Acute Care Hospital · CCN 390139
- Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · CCN 390195
- Paoli HospitalPaoli, PA · Acute Care Hospital · CCN 390153
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · CCN 390222
Practice locations
Addresses where Janson Jacob is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 E Lancaster Ave, Suite 252Wynnewood, PA 19096 (610) 896‑7360
- 1088 W Baltimore Pike Hcc II, 2 Main Line Gastroenterology Associates PCMedia, PA 19063 (610) 565‑1808
- 2112 Harrisburg Pike, Suite 202Lancaster, PA 17601 (717) 869‑4600
- 650 Carnegie Blvd, Suite 100Malvern, PA 19355 (610) 644‑6755
Group practices
Medicare enrollment lists Janson Jacob as a member of this group (CMS data updated 2026-10-02).
- Regional Gastroenterology Associates of Lancaster, Ltd.244 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Wynnewood
Clinicians with the same Medicare primary specialty in Wynnewood, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Pennsylvania State University College Of Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629638614 |
| 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