Quick answers
- Does Zachery A. Barr accept Medicare assignment?
- Yes. Medicare's clinician data says Zachery A. Barr 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 Zachery A. Barr see?
- In 2024, CMS data shows 267 Original Medicare patients and 303 services for Zachery A. Barr. This counts Original Medicare only and measures volume, not quality.
- What is Zachery A. Barr's NPI number?
- 1679719397. 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 Zachery A. Barr, 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 | 267 |
|---|---|
| Services billed to Medicare | 303 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Anesthesia for lens surgery (00142)25 services
- Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)19 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)17 services
- Anesthesia for nerve block and injection procedure, prone position (01992)16 services
- Anesthesia for exam of colon using an endoscope (00812)15 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%
- Arthritis70%
- Diabetes37%
- Anxiety30%
- Ischemic heart disease29%
Hospitals where Zachery A. Barr works
Medicare's Facility Affiliation Data lists Zachery A. Barr 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.
- Southeast Georgia Health System- Brunswick CampusBrunswick, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 110025
Practice locations
Addresses where Zachery A. Barr is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 2000 Dan Proctor DrSaint Marys, GA 31558 (880) 233‑2570
- 2500 Starling St, Suite 604Brunswick, GA 31520 (912) 280‑9977
- 3100 Kemble AveBrunswick, GA 31520 (880) 233‑2570
- 3408 Trout StBrunswick, GA 31520 (912) 590‑0973
- 865 S 1st StJesup, GA 31545 (912) 427‑6811
Group practices
Medicare enrollment lists Zachery A. Barr as a member of these groups (CMS data updated October 2, 2026).
- Overwatch Anesthesia68 clinicians in the group
- Alta Anesthesia Associates of Georgia, PC44 clinicians in the group
- Grand Anesthesia LLC30 clinicians in the group
- Integrated Anesthesia Solutions LLC22 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Georgia →
Other nurse anesthetists in Saint Marys
Clinicians with the same Medicare primary specialty in Saint Marys, GA — not a recommendation.
Other clinicians in Overwatch Anesthesia
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| School | Mercer University School Of Medicine |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679719397 |
| 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