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Emergency Medicine

Brent G. Klapthor, MD

Works at hospitals in San Diego, CA · Eureka, CA · Yuma, AZ · California, Arizona

Summary

Dr. Brent G. Klapthor, MD is an emergency medicine doctor at 11351 E S Frontage Rd, Yuma, AZ 85367. Phone: (928) 336-2000. Accepts Medicare assignment. In 2024, Brent G. Klapthor had 215 Original Medicare patients and 283 services. NPI 1891322004. 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 Brent G. Klapthor, 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 Brent G. Klapthor accept Medicare assignment?
Yes. Medicare's clinician data says Brent G. Klapthor 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 Brent G. Klapthor see?
In 2024, CMS data shows 215 Original Medicare patients and 283 services for Brent G. Klapthor. This counts Original Medicare only and measures volume, not quality.
What is Brent G. Klapthor's NPI number?
1891322004. 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 Brent G. Klapthor, 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 patients215
Services billed to Medicare283
Different services or procedures16
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)96 services
  2. Emergency department visit with moderate level of medical decision making (99284)75 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)40 services
  4. Critical care, first 30-74 minutes (99291)35 services
  5. Emergency department visit with low level of medical decision making (99283)13 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 cholesterol68%
  • Arthritis50%
  • Ischemic heart disease38%
  • Anxiety34%
  • Diabetes33%

Hospitals where Brent G. Klapthor works

Medicare's Facility Affiliation Data lists Brent G. Klapthor 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 Brent G. Klapthor is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brent G. Klapthor as a member of this group (CMS data updated October 2, 2026).

  • Sierra Estrellas Emergency Physicians LLC39 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arizona →

Other emergency medicine doctors in Yuma

Clinicians with the same Medicare primary specialty in Yuma, AZ — not a recommendation.

All emergency medicine doctors in Yuma →

Other clinicians in Sierra Estrellas Emergency Physicians LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Diego School Of Medicine
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891322004
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