Quick answers
- Does Joseph M. Union Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph M. Union 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 Joseph M. Union Jr. see?
- In 2024, CMS data shows 130 Original Medicare patients and 132 services for Joseph M. Union Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Joseph M. Union Jr.'s NPI number?
- 1538105044. 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 Joseph M. Union 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 patients | 130 |
|---|---|
| Services billed to Medicare | 132 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)20 services
- Anesthesia for procedure to assess heart electrical activity (00537)13 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)11 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%
- Arthritis57%
- Ischemic heart disease48%
- Diabetes45%
- Chronic kidney disease42%
Hospitals where Joseph M. Union Jr. works
Medicare's Facility Affiliation Data lists Joseph M. Union 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.
- Atrium Health Navicent the Medical CenterMacon, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 110107
Practice locations
Addresses where Joseph M. Union Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 Corporate Ctr Dr, Suite 180Morrow, GA 30260 (770) 968‑9978
- 2701 N Decatur RdDecatur, GA 30033 (678) 514‑1991
Group practices
Medicare enrollment lists Joseph M. Union Jr. as a member of this group (CMS data updated October 2, 2026).
- American Anesthesiology Associates of Georgia LLC227 clinicians in the group
Specialties
- Anesthesiology Assistantprimary
Other anesthesiologist assistants in Georgia
Clinicians with the same Medicare primary specialty in Georgia — not a recommendation.
Other clinicians in American Anesthesiology Associates of Georgia LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AA |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538105044 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians