Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Nicholas A. Martyak, MD

Works at hospitals in Atlanta, GA · Georgia

Summary

Dr. Nicholas A. Martyak, MD is an emergency medicine doctor at 5665 Peachtree Dunwoody Rd, Atlanta, GA 30342. Phone: (678) 843-7294. Accepts Medicare assignment. In 2024, Nicholas A. Martyak had 210 Original Medicare patients and 316 services. NPI 1316946817. 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: 5665 Peachtree Dunwoody Rd, Atlanta, GA 30342 · Directions
  • Phone: (678) 843‑7294
  • Medicare: Accepts Medicare assignment
  • Hospital: Saint Joseph's Hospital of Atlanta, Inc
  • Group practice: Emergency Care of Atlanta Inc
  • Medical school: Jefferson Medical College Of Thomas Jefferson University · graduated 1998 (28 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Nicholas A. Martyak, 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 A. Martyak accept Medicare assignment?
Yes. Medicare's clinician data says Nicholas A. Martyak 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 A. Martyak see?
In 2024, CMS data shows 210 Original Medicare patients and 316 services for Nicholas A. Martyak. This counts Original Medicare only and measures volume, not quality.
What is Nicholas A. Martyak's NPI number?
1316946817. 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 A. Martyak, 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 patients210
Services billed to Medicare316
Different services or procedures21
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)118 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)92 services
  3. Emergency department visit with moderate level of medical decision making (99284)40 services
  4. Critical care, first 30-74 minutes (99291)39 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%
  • Arthritis59%
  • Ischemic heart disease44%
  • Anxiety37%
  • Chronic kidney disease36%

Hospitals where Nicholas A. Martyak works

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

Group practices

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

  • Emergency Care of Atlanta Inc19 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Georgia →

Other emergency medicine doctors in Atlanta

Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.

All emergency medicine doctors in Atlanta →

Other clinicians in Emergency Care of Atlanta Inc

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

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1316946817
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