Walter Walthall, MD
NPI 1750460317ActiveIndividual· Family Medicine· San Antonio, TX
Family Medicine (MD) in San Antonio, Texas, trained at University of Texas Medical School at Houston (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $742,410 for 9,486 claims, against $122,630 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $905.01 in all, mostly food and beverage.
Overview
| NPI | 1750460317 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 3, 2006 |
| Last updated in NPPES | Jan 20, 2026 |
| Certified by provider | Jan 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | L0956 | 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 | 416 |
|---|---|
| Services billed | 1,897 across 44 procedure codes |
| Paid by Medicare | $122,630 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,486 · 21,509 30-day fills |
|---|---|
| Patients | 763 |
| Total drug cost | $742,410 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Family Practice |
Medical group
- North San Antonio Healthcare AssociatesSan Antonio, TX · 9 clinicians
Hospital affiliation
- Baptist Medical CenterSan Antonio, TX
Other facilities
- Theracare Home HealthHome health agency · San Antonio, TX
- Cardinal Hospice of South TexasHospice · San Antonio, TX
- Holy Savior HospiceHospice · San Antonio, TX
Industry payments (Open Payments)
- 2025$905.01 · 52 payments from 18 companies
- 2024$930.83 · 53 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $177.80 | 11 |
| Pfizer Inc. | $168.95 | 10 |
| Novo Nordisk Inc | $106.48 | 6 |
| Amgen Inc. | $68.63 | 4 |
| Corcept Therapeutics | $63.38 | 3 |
What the 2025 payments were for
- Food and Beverage$905.01 · 52 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,086 family medicine physicians in San Antonio · All family medicine physicians in Texas