John Darren Clark, MD
NPI 1528077112ActiveIndividual· Internal Medicine· Arlington, TX
Internal Medicine (MD) in Arlington, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $344,434 for 5,028 claims, against $171,942 paid for services in 2024. Boston Scientific Corporation reported $17.34 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1528077112 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 5, 2006 |
| Last updated in NPPES | May 26, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | M9928 | TX |
| Internal Medicine | 207R00000X | E2554 | AR |
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 - Hospitalist (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 349 |
|---|---|
| Services billed | 2,160 across 16 procedure codes |
| Paid by Medicare | $171,942 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,028 · 5,099 30-day fills |
|---|---|
| Patients | 199 |
| Total drug cost | $344,434 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Hospice/Palliative Care |
Medical groups
- Questcare Hospitalists PLLCNorth Richland Hills, TX · 264 clinicians
- Questcare Matrix PLLCKennedale, TX · 40 clinicians
Other facilities
- Care Plus Palliative and Hospice Care LLCHospice · Fort Worth, TX
- Heart To Heart Hospice of Fort Worth, LLCHospice · Fort Worth, TX
- Heart To Heart Hospice of MidlothianHospice · Midlothian, TX
- Heart To Heart Hospice of the Brazos, LLCHospice · Cleburne, TX
- Valor HospiceHospice · Fort Worth, TX
- Avir at Emerald HillsNursing home · North Richland Hills, TX
- Forum Parkway Health & RehabilitationNursing home · Bedford, TX
- Glenview Wellness & RehabilitationNursing home · North Richland Hills, TX
Industry payments (Open Payments)
- 2025$17.34 · 1 payment from 1 company
- 2024$99.59 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $17.34 | 1 |
What the 2025 payments were for
- Food and Beverage$17.34 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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