Quick answers
- Which hospitals does Oleg Grapp work at?
- Medicare's official clinician data lists Oleg Grapp at 3 hospitals: 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 Oleg Grapp see patients?
- Medicare's clinician data lists 2 practice locations, including Bryn Mawr, PA and Paoli, PA. Call before your visit to confirm the address.
- What is Oleg Grapp's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Oleg Grapp accept Medicare assignment?
- Yes. Medicare's clinician data says Oleg Grapp 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 Oleg Grapp?
- (484) 337-3000, as listed in official Medicare / NPI Registry data.
- What is Oleg Grapp's NPI number?
- 1063851103. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Oleg Grapp works
Medicare's Facility Affiliation Data lists Oleg Grapp 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
- Paoli HospitalPaoli, PA · Acute Care Hospital · CCN 390153
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · CCN 390222
Practice locations
Addresses where Oleg Grapp is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 S Bryn Mawr AveBryn Mawr, PA 19010 (484) 337‑3000
- 255 W Lancaster AvePaoli, PA 19301 (484) 337‑4097
Group practices
Medicare enrollment lists Oleg Grapp as a member of this group (CMS data updated 2026-10-02).
- Main Line Healthcare1,184 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Bryn Mawr
Clinicians with the same Medicare primary specialty in Bryn Mawr, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Drexel University College Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063851103 |
| 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