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Physician Assistant

Trevor L. Nichols, PA

Works at hospitals in Grass Valley, CA · California

Summary

Trevor L. Nichols, PA is a physician assistant at 107 Margaret Ln, Grass Valley, CA 95945. Phone: (530) 247-9623. Accepts Medicare assignment. In 2024, Trevor L. Nichols had 470 Original Medicare patients and 963 services. NPI 1588602833. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Physician assistant
  • Address: 107 Margaret Ln, Grass Valley, CA 95945 · Directions (3 more locations)
  • Phone: (530) 247‑9623
  • Medicare: Accepts Medicare assignment
  • Hospital: Sierra Nevada Memorial Hospital
  • Group practice: Dignity Health Medical Foundation
  • School: graduated 2000
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Trevor L. Nichols, 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 Trevor L. Nichols accept Medicare assignment?
Yes. Medicare's clinician data says Trevor L. Nichols 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 Trevor L. Nichols see?
In 2024, CMS data shows 470 Original Medicare patients and 963 services for Trevor L. Nichols. This counts Original Medicare only and measures volume, not quality.
What is Trevor L. Nichols's NPI number?
1588602833. 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 Trevor L. Nichols, 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 patients470
Services billed to Medicare963
Different services or procedures76
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)256 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)121 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)87 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)65 services
  5. Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)63 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 cholesterol75%
  • High blood pressure59%
  • Arthritis49%
  • Anxiety21%
  • Ischemic heart disease20%
  • Chronic kidney disease18%

Hospitals where Trevor L. Nichols works

Medicare's Facility Affiliation Data lists Trevor L. Nichols 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.

  • Sierra Nevada Memorial HospitalGrass Valley, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050150

Practice locations

Addresses where Trevor L. Nichols is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Trevor L. Nichols as a member of this group (CMS data updated October 2, 2026).

  • Dignity Health Medical Foundation1,184 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, California →

Other physician assistants in Grass Valley

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

All physician assistants in Grass Valley →

Other clinicians in Dignity Health Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPA
Graduation year2000
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588602833
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians