Diane Susan Demick, MD
NPI 1770553281ActiveIndividual· Internal Medicine, Nephrology· El Paso, TX
Internal Medicine, Nephrology (MD) in El Paso, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $545,981 for 1,708 claims, against $95,627 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 19 companies reporting payments in 2025, $2,982 in all, mostly food and beverage.
Overview
| NPI | 1770553281 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 25, 2006 |
| Last updated in NPPES | Aug 23, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | L2220 | 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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 274 |
|---|---|
| Services billed | 1,232 across 16 procedure codes |
| Paid by Medicare | $95,627 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,708 · 3,999 30-day fills |
|---|---|
| Patients | 334 |
| Total drug cost | $545,981 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- El Paso Physical Therapy Specialists LLCEl Paso, TX · 104 clinicians
- El Paso Therapy Services, Inc.El Paso, TX · 97 clinicians
- Kidney Consultants of El PasoEl Paso, TX · 7 clinicians
Hospital affiliations
- Las Palmas Medical Center A Campus of Lpds HealthcEl Paso, TX
- Sierra Medical CenterEl Paso, TX
- The Hospitals of Providence - Memorial CampusEl Paso, TX
- University Medical Center of El PasoEl Paso, TX
Other facilities
- Davita Loma Vista Dialysis CenterDialysis facility · El Paso, TX
- Davita Mesa Vista DialysisDialysis facility · El Paso, TX
- Davita Transmountain DialysisDialysis facility · El Paso, TX
- Davita Upper Valley DialysisDialysis facility · El Paso, TX
Industry payments (Open Payments)
- 2025$2,982 · 113 payments from 19 companies
- 2024$3,094 · 112 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $625.46 | 22 |
| Glaxosmithkline, LLC. | $390.81 | 6 |
| Travere Therapeutics, Inc. | $366.67 | 21 |
| Amgen Inc. | $232.79 | 9 |
| Otsuka America Pharmaceutical, Inc. | $194.96 | 6 |
What the 2025 payments were for
- Food and Beverage$2,934 · 110 payments
- Education$48.91 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 nephrologists in El Paso · All nephrologists in Texas