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

Anesthesiology

John J. Byrne Sr., MD

Works at hospitals in Atlanta, GA · Georgia

Summary

John J. Byrne Sr., MD (Anesthesiology) is listed by Medicare at 1 hospital in Atlanta, GA. NPI 1003824657. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John J. Byrne Sr., joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
48Years since medical school (graduated 1978)
Albany Medical College Of Union UniversityMedical school
MaleGender (as listed)
Physician Specialists in Anesthesia, P.C.Group practice

Quick answers

Which hospitals does John J. Byrne Sr. work at?
Medicare's official clinician data lists John J. Byrne Sr. at 1 hospital: Saint Joseph's Hospital of Atlanta, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John J. Byrne Sr. see patients?
Medicare's clinician data lists 1 practice location in Atlanta, GA. Call before your visit to confirm the address.
What is John J. Byrne Sr.'s specialty?
Medicare lists Anesthesiology as the primary specialty.
Does John J. Byrne Sr. accept Medicare assignment?
Yes. Medicare's clinician data says John J. Byrne Sr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for John J. Byrne Sr.?
(404) 257-1415, as listed in official Medicare / NPI Registry data.
What is John J. Byrne Sr.'s NPI number?
1003824657. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John J. Byrne Sr. works

Medicare's Facility Affiliation Data lists John J. Byrne Sr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John J. Byrne Sr. is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John J. Byrne Sr. as a member of this group (CMS data updated 2026-10-02).

  • Physician Specialists in Anesthesia, P.C.112 clinicians in the group

Specialties

Find other Anesthesiology doctors in Georgia →

Other anesthesiologists in Atlanta

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

All anesthesiologists in Atlanta →

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year1978
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003824657
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians