William F. Alexander, M.D.
NPI 1609848738ActiveIndividual· Internal Medicine, Gastroenterology· Nashville, TN
Internal Medicine, Gastroenterology (M.D.) in Nashville, Tennessee, trained at University of North Carolina at Chapel Hill School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $750,068 for 2,142 claims, against $53,825 paid for services in 2024. Janssen Biotech, Inc. was the largest of 3 companies reporting payments in 2025, $163.07 in all, mostly food and beverage.
Overview
| NPI | 1609848738 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 2, 2006 |
| Last updated in NPPES | Oct 1, 2026 |
| Certified by provider | Oct 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD0000018809 | TN |
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 - Gastroenterology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 309 |
|---|---|
| Services billed | 631 across 58 procedure codes |
| Paid by Medicare | $53,825 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,142 · 2,936 30-day fills |
|---|---|
| Patients | 295 |
| Total drug cost | $750,068 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of North Carolina at Chapel Hill School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Gastroenterology |
Medical groups
- Advanced Diagnostic Imaging PCGoodlettsville, TN · 523 clinicians
- Ut Regional One Physicians IncMemphis, TN · 324 clinicians
Hospital affiliations
- Ascension Saint Thomas HospitalNashville, TN
- Livingston Regional HospitalLivingston, TN
- Regional One HealthMemphis, TN
- Saint Thomas River Park HospitalMcMinnville, TN
Industry payments (Open Payments)
- 2025$163.07 · 7 payments from 3 companies
- 2024$346.53 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $75.53 | 3 |
| Capsovision, Inc. | $50.57 | 2 |
| Abbvie Inc. | $36.97 | 2 |
What the 2025 payments were for
- Food and Beverage$163.07 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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