Douglas Buckner Johnson, MD
NPI 1154597458ActiveIndividual· Internal Medicine, Medical Oncology· Nashville, TN
Internal Medicine, Medical Oncology (MD) in Nashville, Tennessee, trained at University of Alabama School of Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $1,805,664 for 541 claims, against $26,516 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 4 companies reporting payments in 2025, $7,475 in all, mostly consulting fees.
Overview
| NPI | 1154597458 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 6, 2008 |
| Last updated in NPPES | Dec 10, 2025 |
| Certified by provider | Dec 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 48130 | TN |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 48130 | TN |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 358 across 13 procedure codes |
| Paid by Medicare | $26,516 |
Part D prescriptions in 2024
| Prescriptions (claims) | 541 · 675 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $1,805,664 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Vanderbilt Health Clinicians, LLCNashville, TN · 129 clinicians
Hospital affiliation
- Vanderbilt University Medical CenterNashville, TN
Industry payments (Open Payments)
- 2025$7,475 · 9 payments from 4 companies
- 2024$7,552 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $2,870 | 2 |
| Daiichi Sankyo Inc. | $2,525 | 5 |
| Array Biopharma Inc | $1,440 | 1 |
| Merck Sharp & Dohme LLC | $640.00 | 1 |
What the 2025 payments were for
- Consulting Fee$6,970 · 4 payments
- Travel and Lodging$430.24 · 2 payments
- Food and Beverage$74.73 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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