Matthew E. Schaefer, D.O.
NPI 1346205648ActiveIndividual· Internal Medicine, Nephrology· Boerne, TX
Internal Medicine, Nephrology (D.O.) in Boerne, Texas, trained at At Still University of Health Sciences, College of Osteo Med, Kirksville (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $521,019 for 2,087 claims, against $311,085 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 17 companies reporting payments in 2025, $968.84 in all, mostly food and beverage.
Overview
| NPI | 1346205648 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 19, 2006 |
| Last updated in NPPES | Sep 16, 2026 |
| Certified by provider | Sep 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | M5487 | TX |
| Internal Medicine | 207R00000X | 2003022259 | MO |
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 - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 940 |
|---|---|
| Services billed | 3,538 across 30 procedure codes |
| Paid by Medicare | $311,085 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,087 · 5,126 30-day fills |
|---|---|
| Patients | 448 |
| Total drug cost | $521,019 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | At Still University of Health Sciences, College of Osteo Med, Kirksville |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- San Antonio Kidney Disease Center Physicians Group, P.L.L.C.San Antonio, TX · 33 clinicians
Hospital affiliations
- Baptist Medical CenterSan Antonio, TX
- Hill Country Memorial HospitalFredericksburg, TX
- Kimble HospitalJunction, TX
- Methodist Hospital Stone OakSan Antonio, TX
- Peterson Regional Medical CenterKerrville, TX
Other facilities
- Carmen BulverdeDialysis facility · Spring Branch, TX
- Davita Boerne Dialysis CenterDialysis facility · Boerne, TX
- Davita Kerrville DialysisDialysis facility · Kerrville, TX
Industry payments (Open Payments)
- 2025$968.84 · 48 payments from 17 companies
- 2024$1,047 · 54 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $191.33 | 14 |
| Calliditas Therapeutics US Inc. | $88.48 | 3 |
| Opko Pharmaceuticals, LLC | $84.62 | 4 |
| Daiichi Sankyo Inc. | $81.92 | 4 |
| Otsuka America Pharmaceutical, Inc. | $76.48 | 4 |
What the 2025 payments were for
- Food and Beverage$968.84 · 48 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Boerne
- 1699893610