Stephen M. Schinker, MD
NPI 1134304173ActiveIndividual· Internal Medicine, Nephrology· Phoenix, AZ
Internal Medicine, Nephrology (MD) in Phoenix, Arizona, trained at University of Nebraska College of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $395,892 for 5,164 claims, against $147,644 paid for services in 2024. Akebia Therapeutics Inc was the largest of 16 companies reporting payments in 2025, $758.20 in all, mostly food and beverage.
Overview
| NPI | 1134304173 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 9, 2008 |
| Last updated in NPPES | Jun 19, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 42908 | AZ |
| Internal Medicine | 207R00000X | M8980 | 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 - Nephrology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 491 |
|---|---|
| Services billed | 4,475 across 46 procedure codes |
| Paid by Medicare | $147,644 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,164 · 11,188 30-day fills |
|---|---|
| Patients | 448 |
| Total drug cost | $395,892 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of Nebraska College of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Sjhmc Physician ServicesGilbert, AZ · 646 clinicians
- Southwest Kidney Institute PLCMesa, AZ · 101 clinicians
- Banner - University Super Specialists LLCPhoenix, AZ · 34 clinicians
Hospital affiliations
- Banner - University Medical Center PhoenixPhoenix, AZ
- Honor Health John C. Lincoln Medical CenterPhoenix, AZ
- St Josephs Hospital and Medical CenterPhoenix, AZ
Other facilities
- Davita Phoenix Dialysis CenterDialysis facility · Phoenix, AZ
- Davita Raven Dialysis CenterDialysis facility · Phoenix, AZ
Industry payments (Open Payments)
- 2025$758.20 · 32 payments from 16 companies
- 2024$660.45 · 31 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Akebia Therapeutics Inc | $116.36 | 4 |
| Vantive US Healthcare LLC | $104.90 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $96.00 | 5 |
| Ardelyx, Inc. | $84.54 | 4 |
| Novartis Pharmaceuticals Corporation | $47.06 | 2 |
What the 2025 payments were for
- Food and Beverage$712.62 · 28 payments
- Education$45.58 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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