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Emergency Medicine

Zachary W. Dalton, DO

Works at hospitals in Carthage, MO · Springfield, MO · Nevada, MO · Missouri

Summary

Dr. Zachary W. Dalton, DO is an emergency medicine doctor at 100 Mercy Way, Mercy Clinic Emergency Medicine, Joplin, MO 64804. Phone: (417) 556-2300. Accepts Medicare assignment. In 2024, Zachary W. Dalton had 220 Original Medicare patients and 287 services. NPI 1497017693. 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 Zachary W. Dalton, 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 Zachary W. Dalton accept Medicare assignment?
Yes. Medicare's clinician data says Zachary W. Dalton 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 Zachary W. Dalton see?
In 2024, CMS data shows 220 Original Medicare patients and 287 services for Zachary W. Dalton. This counts Original Medicare only and measures volume, not quality.
What is Zachary W. Dalton's NPI number?
1497017693. 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 Zachary W. Dalton, 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 patients220
Services billed to Medicare287
Different services or procedures14
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with moderate level of medical decision making (99284)133 services
  2. Emergency department visit with low level of medical decision making (99283)61 services
  3. Emergency department visit with high level of medical decision making (99285)55 services
  4. Critical care, first 30-74 minutes (99291)17 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%
  • Arthritis51%
  • Chronic kidney disease38%
  • Diabetes36%
  • Heart failure33%

Hospitals where Zachary W. Dalton works

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

Group practices

Medicare enrollment lists Zachary W. Dalton as a member of these groups (CMS data updated October 2, 2026).

  • Green Country Emergency Physicians Group of Tulsa, PLLC113 clinicians in the group
  • Nevada City Hospital85 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Missouri →

Other emergency medicine doctors in Joplin

Clinicians with the same Medicare primary specialty in Joplin, MO — not a recommendation.

All emergency medicine doctors in Joplin →

Other clinicians in Green Country Emergency Physicians Group of Tulsa, PLLC

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

Clinician information

CredentialDO
Graduation year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1497017693
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