Mark S. Silidker, M.D.
NPI 1598750028ActiveIndividual· Radiology, Diagnostic Radiology· Doylestown, PA
Radiology, Diagnostic Radiology (M.D.) in Doylestown, Pennsylvania, trained at Rutgers New Jersey Medical School (class of 1983). Mostly services rather than prescriptions: Medicare paid $155,092 for 3,758 patients in 2024, with only 28 Part D claims. Astellas Pharma US Inc reported $22.29 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1598750028 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 12, 2005 |
| Last updated in NPPES | Jul 29, 2026 |
| Certified by provider | Jul 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | MD417869 | PA |
| Radiology, Diagnostic Radiology | 2085R0202X | 25MA05035300 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Diagnostic Radiology (NJ); Practitioner - Diagnostic Radiology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 3,758 |
|---|---|
| Services billed | 5,929 across 160 procedure codes |
| Paid by Medicare | $155,092 |
Part D prescriptions in 2024
| Prescriptions (claims) | 28 · 66 30-day fills |
|---|---|
| Total drug cost | $5,511 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Diagnostic Radiology |
Medical group
- Parlee and Tatem Radiologic Associates LtdDoylestown, PA · 16 clinicians
Hospital affiliations
- Doylestown HospitalDoylestown, PA
- Hospital of Univ of PennsylvaniaPhiladelphia, PA
Industry payments (Open Payments)
- 2025$22.29 · 1 payment from 1 company
- 2024$17.21 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $22.29 | 1 |
What the 2025 payments were for
- Food and Beverage$22.29 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 diagnostic radiologists in Doylestown · All diagnostic radiologists in Pennsylvania