John Mark Chauncey, M.D.
NPI 1093194292ActiveIndividual· Emergency Medicine· Temple, TX
Emergency Medicine (M.D.) in Temple, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 2015). 642 Medicare patients in 2024, $95,821 paid; nearly all of their 382 Part D prescriptions were generic (95%). Collegium Pharmaceutical, Inc. reported $19.28 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1093194292 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 21, 2015 |
| Last updated in NPPES | May 25, 2021 |
| Certified by provider | May 25, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | BP20065386 | TX |
| Surgery | 208600000X | 594023 | TX |
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 - Emergency Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 642 |
|---|---|
| Services billed | 991 across 19 procedure codes |
| Paid by Medicare | $95,821 |
Part D prescriptions in 2024
| Prescriptions (claims) | 382 · 384 30-day fills |
|---|---|
| Patients | 242 |
| Total drug cost | $3,830 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Travis County Emergency Physicians PAHouston, TX · 327 clinicians
- Northeast Texas Emergency Physicians PLLCLongview, TX · 207 clinicians
- Ess of Nacogdoches LLCNacogdoches, TX · 27 clinicians
Hospital affiliations
- Christus Good Shepherd Medical CenterLongview, TX
- Christus Mother Frances HospitalTyler, TX
- Nacogdoches Medical CenterNacogdoches, TX
- Nacogdoches Memorial HospitalNacogdoches, TX
Industry payments (Open Payments)
- 2025$19.28 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Collegium Pharmaceutical, Inc. | $19.28 | 1 |
What the 2025 payments were for
- Food and Beverage$19.28 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 171 emergency medicine physicians in Temple · All emergency medicine physicians in Texas