Nelio Guzman Aguayo, M.D.
Nephrology Physician · Spokane, WA
Nelio Guzman Aguayo, M.D. is a nephrology physician with a practice address in Spokane, Washington, and NPI 1124266184, issued on Jan 29, 2009. Check the license (Washington MD60321439, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nelio Guzman Aguayo
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- MD60321439 WA
P0396 TX
Self-reported in NPPES; status is on the state search - Practice location
- 105 W 8TH Ave, Spokane, WA 99204
- Phone
- (509) 747-2054
- Enumerated
- Jan 29, 2009
- Record last updated
- May 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (509) 747-2054
- Medicare enrollment
- Enrolled (PECOS I20130911000330); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 284 in Washington → Look up another NPI →
Also registered at 105 W 8TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jamil Abou-Harb, MDPediatric Gastroenterology Physician1891712980
- Adnan Amin, MDPsychiatry Physician1508913492
- Kelly Anderson, MSN, ARNP-CFamily Nurse Practitioner1073844403
- Mary Ann Arndt, M.D.Nephrology Physician1750458329
- Howard Ashby, MDPsychiatry Physician1245456102
Verify Nelio Guzman Aguayo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60321439Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average nephrology physician in 2024
1,036 Medicare Part D claims for 166 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Jardiance144 claims
- Lisinopril132 claims
- Amlodipine Besylate92 claims
- Kerendia72 claims
- Losartan Potassium67 claims
- Calcitriol58 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $189.12
13 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Providence Health And Services WashingtonSpokane, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nelio Guzman Aguayo among 284 nephrology physician records in Washington
Nelio Guzman Aguayo, M.D. is one of 284 nephrology physician records with a practice address in Washington. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2003 · median 2003 among the 213 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Washington
There are 284 nephrology physician records in Washington.
All 284 in Washington → Every provider in Spokane → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Mary Ann Arndt, M.D.Spokane, WA 992041750458329
- Richard Carson, MDSpokane, WA 992041114929668
- Nelson Chow, MDSpokane, WA 992041427142470
- Nathalie Jean, MDSpokane, WA 992041700134293
- Nasir Khan, M.D.Spokane, WA 992041285061226
- Ashutosh Mahajan, MDSpokane, WA 992041932140183
- Krishna Malireddi, MDSpokane, WA 992041780778746
- Henry Mroch, MDSpokane, WA 992041245324219
Common questions
What is Nelio Guzman Aguayo, M.D.'s NPI number?
Nelio Guzman Aguayo, M.D.'s National Provider Identifier (NPI) is 1124266184, issued on Jan 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Nelio Guzman Aguayo, M.D. located?
The NPPES record lists a practice address at 105 W 8TH Ave, Spokane, WA, 99204. Phone: (509) 747-2054. Providers update this record themselves, so call before visiting.
How can I verify Nelio Guzman Aguayo, M.D.'s license?
NPPES lists Washington license number MD60321439, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nelio Guzman Aguayo, M.D. prescribe under Medicare Part D?
In 2024, Nelio Guzman Aguayo, M.D. had 1,036 Medicare Part D claims for 166 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.