David Ray Chen, MD
NPI 1093941510ActiveIndividual· Internal Medicine, Rheumatology· Philadelphia, PA
Internal Medicine, Rheumatology (MD) in Philadelphia, Pennsylvania, trained at Drexel University College of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $1,900,599 for 2,338 claims, against $1,211,946 paid for services in 2024. Ucb, Inc. was the largest of 6 companies reporting payments in 2025, $870.25 in all, mostly food and beverage.
Overview
| NPI | 1093941510 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2009 |
| Last updated in NPPES | Jun 17, 2022 |
| Certified by provider | Jun 17, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | MD439761 | PA |
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 - Rheumatology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 502 |
|---|---|
| Services billed | 109,598 across 48 procedure codes |
| Paid by Medicare | $1,211,946 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,338 · 4,534 30-day fills |
|---|---|
| Patients | 364 |
| Total drug cost | $1,900,599 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Drexel University College of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical group
- University of Penn - Medical GroupPhiladelphia, PA · 3,505 clinicians
Hospital affiliations
- Chester County HospitalWest Chester, PA
- Hospital of Univ of PennsylvaniaPhiladelphia, PA
- Paoli HospitalPaoli, PA
- Penn Presbyterian Medical CenterPhiladelphia, PA
- Pennsylvania HospitalPhiladelphia, PA
Other facilities
- Good Shepherd Penn PartnersLong-term care hospital · Philadelphia, PA
Industry payments (Open Payments)
- 2025$870.25 · 39 payments from 6 companies
- 2024$2,162 · 116 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ucb, Inc. | $285.65 | 10 |
| Amgen Inc. | $235.74 | 13 |
| Genentech USA, Inc. | $139.80 | 6 |
| Novartis Pharmaceuticals Corporation | $91.03 | 5 |
| Abbvie Inc. | $63.04 | 3 |
What the 2025 payments were for
- Food and Beverage$870.25 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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