Nelio Guzman Aguayo, M.D.
NPI 1124266184ActiveIndividual· Internal Medicine, Nephrology· Spokane, WA
Internal Medicine, Nephrology (M.D.) with Providence Health and Services Washington, practicing in Spokane, Washington. Their prescriptions cost Medicare Part D more than their services did: $556,511 for 1,036 claims, against $52,668 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 5 companies reporting payments in 2025, $185.92 in all, mostly food and beverage. Lists Lincoln Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1124266184 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 29, 2009 |
| Last updated in NPPES | May 25, 2021 |
| Certified by provider | May 25, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD60321439 | WA |
| Internal Medicine, Nephrology | 207RN0300X | P0396 | TX |
| Pediatrics, Pediatric Nephrology | 2080P0210X | P0396 | TX |
| Pediatrics, Pediatric Nephrology | 2080P0210X | MD60321439 | WA |
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 (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 250 |
|---|---|
| Services billed | 816 across 16 procedure codes |
| Paid by Medicare | $52,668 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,036 · 2,486 30-day fills |
|---|---|
| Patients | 166 |
| Total drug cost | $556,511 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Providence Health and Services WashingtonSpokane, WA · 784 clinicians
Hospital affiliations
- Lincoln HospitalDavenport, WA
- Newport Community HospitalNewport, WA
- Prov Sacred Hrt Med Ctr & Childs Hosp.Spokane, WA
- Providence Holy Family HospitalSpokane, WA
- Providence Mount Carmel HospitalColville, WA
Other facilities
- Davita Downtown Spokane Renal CenterDialysis facility · Spokane, WA
- Davita Indian Trail DialysisDialysis facility · Spokane, WA
- Fmc Spokane Kidney CenterDialysis facility · Spokane, WA
Industry payments (Open Payments)
- 2025$185.92 · 9 payments from 5 companies
- 2024$189.12 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $76.13 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $38.59 | 2 |
| Scpharmaceuticals Inc. | $24.86 | 1 |
| Xeris Pharmaceuticals, Inc. | $24.24 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $22.10 | 1 |
What the 2025 payments were for
- Food and Beverage$185.92 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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