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Emergency Medicine

Joshua Kamnetz, MD

Works at hospitals in Williston, ND · Woodbridge, VA · Tacoma, WA · North Dakota, Virginia, Washington

Summary

Dr. Joshua Kamnetz, MD is an emergency medicine doctor at 12825 Minnieville Rd, Lake Ridge, VA 22192. Phone: (703) 523-9800. Accepts Medicare assignment. In 2024, Joshua Kamnetz had 389 Original Medicare patients and 433 services. NPI 1912392846. 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 Joshua Kamnetz, 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 Joshua Kamnetz accept Medicare assignment?
Yes. Medicare's clinician data says Joshua Kamnetz 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 Joshua Kamnetz see?
In 2024, CMS data shows 389 Original Medicare patients and 433 services for Joshua Kamnetz. This counts Original Medicare only and measures volume, not quality.
What is Joshua Kamnetz's NPI number?
1912392846. 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 Joshua Kamnetz, 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 patients389
Services billed to Medicare433
Different services or procedures17
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)251 services
  2. Emergency department visit with moderate level of medical decision making (99284)82 services
  3. Critical care, first 30-74 minutes (99291)58 services
  4. Emergency department visit with low level of medical decision making (99283)23 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%
  • Arthritis53%
  • Diabetes49%
  • Ischemic heart disease48%
  • Heart failure37%

Hospitals where Joshua Kamnetz works

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

Group practices

Medicare enrollment lists Joshua Kamnetz as a member of these groups (CMS data updated October 2, 2026).

  • Emergency Coverage LLC775 clinicians in the group
  • Mercy Medical Center77 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Virginia →

Other emergency medicine doctors in Lake Ridge

Clinicians with the same Medicare primary specialty in Lake Ridge, VA — not a recommendation.

All emergency medicine doctors in Lake Ridge →

Other clinicians in Emergency Coverage LLC

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

Clinician information

CredentialMD
Graduation year2015 (11 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912392846
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