Quick answers
- Does Nicolas Villa Guillen accept Medicare assignment?
- Yes. Medicare's clinician data says Nicolas Villa Guillen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Nicolas Villa Guillen see?
- In 2024, CMS data shows 687 Original Medicare patients and 1,236 services for Nicolas Villa Guillen. This counts Original Medicare only and measures volume, not quality.
- What is Nicolas Villa Guillen's NPI number?
- 1265696553. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Nicolas Villa Guillen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 687 |
|---|---|
| Services billed to Medicare | 1,236 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)272 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)270 services
- Biopsy of large bowel using a flexible endoscope (45380)109 services
- Insertion of guide wire with dilation of esophagus using a flexible endoscope (43248)94 services
- Review by radiologist of image from tube placement into bile duct using an endoscope (74328)44 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol74%
- High blood pressure71%
- Arthritis50%
- Diabetes31%
- Ischemic heart disease28%
- Chronic kidney disease24%
Hospitals where Nicolas Villa Guillen works
Medicare's Facility Affiliation Data lists Nicolas Villa Guillen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Alaska Regional HospitalAnchorage, AK · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 020017
- Deaconess Medical CenterSpokane, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500044
- Multicare Valley HospitalSpokane Valley, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500119
- Providence Alaska Medical CenterAnchorage, AK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 020001
- Yakima Valley MemorialYakima, WA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 500036
Practice locations
Addresses where Nicolas Villa Guillen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 Airport Heights Dr, Suite 210Anchorage, AK 99508 (907) 562‑6001
- 311 S L StTacoma, WA 98405
- 4700 Point Fosdick DrGig Harbor, WA 98335
- 910 W 5th AveSpokane, WA 99204
Group practices
Medicare enrollment lists Nicolas Villa Guillen as a member of these groups (CMS data updated October 2, 2026).
- Multicare Health System2,325 clinicians in the group
- Pioneer Gi Clinic, Apc8 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Anchorage
Clinicians with the same Medicare primary specialty in Anchorage, AK — not a recommendation.
Other clinicians in Multicare Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265696553 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians