Douglas Frederick Johnston, DO
NPI 1083641559ActiveIndividual· Family Medicine· Tyler, TX
Family Medicine (DO) with Etmc Physician Group, Inc., practicing in Tyler, Texas. Their prescriptions cost Medicare Part D more than their services did: $801,551 for 8,851 claims, against $117,335 paid for services in 2024. Exact Sciences Corporation was the largest of 10 companies reporting payments in 2025, $373.45 in all, mostly food and beverage. Lists Christus Mother Frances Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1083641559 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 28, 2006 |
| Last updated in NPPES | Jan 3, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | L7432 | 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 312 |
|---|---|
| Services billed | 2,285 across 60 procedure codes |
| Paid by Medicare | $117,335 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,851 · 20,153 30-day fills |
|---|---|
| Patients | 646 |
| Total drug cost | $801,551 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Etmc Physician Group, Inc.Flint, TX · 381 clinicians
Hospital affiliations
- Christus Mother Frances HospitalTyler, TX
- University of Texas Health Science Center at TylerTyler, TX
- Ut Health East Texas Jacksonville HospitalJacksonville, TX
- Ut Health East Texas Tyler Regional HospitalTyler, TX
Other facilities
- Choice HomecareHome health agency · Tyler, TX
- Enhabit Home HealthHome health agency · Tyler, TX
Industry payments (Open Payments)
- 2025$373.45 · 21 payments from 10 companies
- 2024$542.28 · 39 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $86.22 | 5 |
| Bayer Healthcare Pharmaceuticals Inc. | $79.04 | 5 |
| Corium, LLC | $69.90 | 3 |
| Tris Pharma Inc | $39.85 | 2 |
| Abbott Laboratories | $22.92 | 1 |
What the 2025 payments were for
- Food and Beverage$373.45 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Tyler
- 1104810779
- 1124339437
- 1144640822
- 1174598312
- 1194174979
- 1205814753
- 1215972591
- 1275538035
- 1275982589
- 1356601611
- 1366821928
- 1407593676
All 153 family medicine physicians in Tyler · All family medicine physicians in Texas