Zheng Chen
NPI 1669878807ActiveIndividual· Physician Assistant, Medical· Lanham, MD
Physician Assistant, Medical with Chesapeake Digestive Associates, PC, practicing in Lanham, Maryland. Their prescriptions cost Medicare Part D more than their services did: $379,924 for 513 claims, against $14,140 paid for services in 2024. Janssen Biotech, Inc. was the largest of 21 companies reporting payments in 2025, $4,172 in all, mostly food and beverage. Lists Johns Hopkins Hospital, the as a hospital affiliation.
Overview
| NPI | 1669878807 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Nov 17, 2014 |
| Last updated in NPPES | Feb 20, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | C05564 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (DC); Practitioner - Physician Assistant (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 156 |
|---|---|
| Services billed | 197 across 17 procedure codes |
| Paid by Medicare | $14,140 |
Part D prescriptions in 2024
| Prescriptions (claims) | 513 · 1,019 30-day fills |
|---|---|
| Patients | 240 |
| Total drug cost | $379,924 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Chesapeake Digestive Associates, PCColumbia, MD · 38 clinicians
Hospital affiliation
- Johns Hopkins Hospital, theBaltimore, MD
Industry payments (Open Payments)
- 2025$4,172 · 177 payments from 21 companies
- 2024$1,705 · 60 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $785.37 | 25 |
| Abbvie Inc. | $579.29 | 19 |
| Takeda Pharmaceuticals U.S.A., Inc. | $500.37 | 24 |
| Pfizer Inc. | $487.90 | 30 |
| Madrigal Pharmaceuticals | $436.65 | 15 |
What the 2025 payments were for
- Food and Beverage$4,172 · 177 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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