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Emergency Medicine

Ronald C. Best Jr., DO

Works at hospitals in Martinsburg, WV · West Virginia

Summary

Dr. Ronald C. Best Jr., DO is an emergency medicine doctor at 2500 Hospital Dr, Martinsburg, WV 25401. Phone: (304) 260-1443. Accepts Medicare assignment. In 2024, Ronald C. Best Jr. had 491 Original Medicare patients and 789 services. NPI 1285689000. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 2500 Hospital Dr, Martinsburg, WV 25401 · Directions
  • Phone: (304) 260‑1443
  • Medicare: Accepts Medicare assignment
  • Hospital: Berkeley Medical Center
  • Group practice: City Hospital Inc
  • Medical school: West Virginia School Of Osteopathic Medicine · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald C. Best Jr., 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 Ronald C. Best Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Ronald C. Best Jr. 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 Ronald C. Best Jr. see?
In 2024, CMS data shows 491 Original Medicare patients and 789 services for Ronald C. Best Jr.. This counts Original Medicare only and measures volume, not quality.
What is Ronald C. Best Jr.'s NPI number?
1285689000. 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 Ronald C. Best Jr., 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 patients491
Services billed to Medicare789
Different services or procedures13
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)311 services
  2. Emergency department visit with moderate level of medical decision making (99284)185 services
  3. Emergency department visit with high level of medical decision making (99285)177 services
  4. Critical care, first 30-74 minutes (99291)51 services
  5. Emergency department visit with low level of medical decision making (99283)45 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 cholesterol75%
  • Arthritis56%
  • Anxiety43%
  • Ischemic heart disease41%
  • Diabetes38%

Hospitals where Ronald C. Best Jr. works

Medicare's Facility Affiliation Data lists Ronald C. Best Jr. 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 Ronald C. Best Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ronald C. Best Jr. as a member of this group (CMS data updated October 2, 2026).

  • City Hospital Inc161 clinicians in the group

Specialties

Find other Emergency Medicine doctors in West Virginia →

Other emergency medicine doctors in Martinsburg

Clinicians with the same Medicare primary specialty in Martinsburg, WV — not a recommendation.

All emergency medicine doctors in Martinsburg →

Other clinicians in City Hospital Inc

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

Clinician information

CredentialDO
Medical schoolWest Virginia School Of Osteopathic Medicine
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285689000
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