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Emergency Medicine

Nicholas R. Peairs, MD

Works at hospitals in Lakeport, CA · Santa Rosa, CA · California

Summary

Dr. Nicholas R. Peairs, MD is an emergency medicine doctor at 30 Mark W Springs Rd, Santa Rosa, CA 95403. Phone: (707) 576-4000. Accepts Medicare assignment. In 2024, Nicholas R. Peairs had 556 Original Medicare patients and 905 services. NPI 1205362852. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Nicholas R. Peairs, 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 Nicholas R. Peairs accept Medicare assignment?
Yes. Medicare's clinician data says Nicholas R. Peairs 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 Nicholas R. Peairs see?
In 2024, CMS data shows 556 Original Medicare patients and 905 services for Nicholas R. Peairs. This counts Original Medicare only and measures volume, not quality.
What is Nicholas R. Peairs's NPI number?
1205362852. 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 Nicholas R. Peairs, 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 patients556
Services billed to Medicare905
Different services or procedures27
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)337 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)281 services
  3. Critical care, first 30-74 minutes (99291)146 services
  4. Emergency department visit with moderate level of medical decision making (99284)90 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 blood pressure75%
  • High cholesterol72%
  • Arthritis48%
  • Anxiety37%
  • Chronic kidney disease37%
  • Depression36%

Hospitals where Nicholas R. Peairs works

Medicare's Facility Affiliation Data lists Nicholas R. Peairs 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.

Practice locations

Addresses where Nicholas R. Peairs is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nicholas R. Peairs as a member of this group (CMS data updated October 2, 2026).

  • San Francisco Emergency Medical Associates75 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Santa Rosa

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

All emergency medicine doctors in Santa Rosa →

Other clinicians in San Francisco Emergency Medical Associates

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

Clinician information

CredentialMD
Medical schoolUniversity Of Louisville School Of Medicine
Graduation year2018 (8 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205362852
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