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Physician Assistant

Monica Guillen, PA

Works at hospitals in Los Banos, CA · California

Summary

Monica Guillen, PA is a physician assistant at 700 E Yosemite, Madera, CA 93638. May accept Medicare assignment. NPI 1801480546. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Physician assistant
  • Address: 700 E Yosemite, Madera, CA 93638 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Hospital: Memorial Hospital Los Banos
  • School: graduated 2024
  • Gender (as listed): Female
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Monica Guillen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Monica Guillen accept Medicare assignment?
Medicare's clinician data says Monica Guillen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Monica Guillen's NPI number?
1801480546. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Monica Guillen works

Medicare's Facility Affiliation Data lists Monica 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.

  • Memorial Hospital Los BanosLos Banos, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050528

Practice locations

Addresses where Monica Guillen is enrolled with Medicare (CMS data updated October 2, 2026).

  • 700 E YosemiteMadera, CA 93638
  • PO Box, Suite 299Madera, CA 93639

Specialties

Find other clinicians: Physician Assistant, California →

Other physician assistants in Madera

Clinicians with the same Medicare primary specialty in Madera, CA — not a recommendation.

All physician assistants in Madera →

Clinician information

CredentialPA
Graduation year2024
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1801480546
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians