Nicolas Alfonso Villa Guillen, M.D.
Gastroenterology Physician · Spokane, WA
Nicolas Alfonso Villa Guillen, M.D. is a gastroenterology physician with a practice address in Spokane, Washington, and NPI 1265696553, issued on Jul 15, 2008. Check the license (Washington MD60501812, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nicolas Alfonso Villa Guillen
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD60501812 WA
BP10031201 TX
Self-reported in NPPES; status is on the state search - Practice location
- 910 W 5TH Ave Ste 501, Spokane, WA 99204
- Phone
- (509) 838-2531
- Enumerated
- Jul 15, 2008
- Record last updated
- Sep 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (509) 755-6580
- Medicare enrollment
- Enrolled (PECOS I20210929002489); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 533 in Washington → Look up another NPI →
Also registered at 910 W 5TH Ave Ste 501
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Ghiorso, PA-CMedical Physician Assistant1396037016
- Abigail Klemme, PA-C, RD, LDMedical Physician Assistant1215397641
- Jessica Mickelsen, PA-CPhysician Assistant1508347378
- Miguel Ordonez Castellanos, MDGastroenterology Physician1013168392
- Andrew Woolf, D.OGastroenterology Physician1346632643
Verify Nicolas Alfonso Villa Guillen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60501812Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,932 Medicare Part D claims for 963 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Gavilyte-C628 claims
- Ondansetron Odt599 claims
- Pantoprazole Sodium228 claims
- Sod Sulf-Potass Sulf-Mag Sulf107 claims
- Famotidine37 claims
- Omeprazole37 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: $2,133.22
34 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 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 2 group practices
- Multicare Health SystemTacoma, WA
- Pioneer GI Clinic, ApcAnchorage, AK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicolas Alfonso Villa Guillen among 533 gastroenterology physician records in Washington
Nicolas Alfonso Villa Guillen, M.D. is one of 533 gastroenterology physician records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.
- NPI issued2008 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2006 · median 2003 among the 373 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Washington
There are 533 gastroenterology physician records in Washington.
All 533 in Washington → Every provider in Spokane → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- John Brandabur, MDSpokane, WA 992041568493997
- Arnold Cohen, M.D.Spokane, WA 992041477540326
- James David, M.D.Spokane, WA 992041649208919
- Philip Delich, MDSpokane, WA 992041407858889
- Robert Durnford, M.D.Spokane, WA 992041922095827
- Joseph Fitterer, MDSpokane, WA 992041548253511
- James Goff, MDSpokane, WA 992041588651400
- Steven Goodell, M.D.Spokane, WA 992041962499848
Common questions
What is Nicolas Alfonso Villa Guillen, M.D.'s NPI number?
Nicolas Alfonso Villa Guillen, M.D.'s National Provider Identifier (NPI) is 1265696553, issued on Jul 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nicolas Alfonso Villa Guillen, M.D. located?
The NPPES record lists a practice address at 910 W 5TH Ave Ste 501, Spokane, WA, 99204. Phone: (509) 838-2531. Providers update this record themselves, so call before visiting.
How can I verify Nicolas Alfonso Villa Guillen, M.D.'s license?
NPPES lists Washington license number MD60501812, 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 Nicolas Alfonso Villa Guillen, M.D. prescribe under Medicare Part D?
In 2024, Nicolas Alfonso Villa Guillen, M.D. had 1,932 Medicare Part D claims for 963 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.