Quick answers
- Does Zachary R. Merena accept Medicare assignment?
- Medicare's clinician data says Zachary R. Merena may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Zachary R. Merena see?
- In 2024, CMS data shows 117 Original Medicare patients and 190 services for Zachary R. Merena. This counts Original Medicare only and measures volume, not quality.
- What is Zachary R. Merena's NPI number?
- 1174088108. 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 R. Merena, 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 | 117 |
|---|---|
| Services billed to Medicare | 190 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)103 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)50 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)21 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%
- Arthritis56%
- Ischemic heart disease50%
- Chronic kidney disease47%
- Atrial fibrillation46%
Hospitals where Zachary R. Merena works
Medicare's Facility Affiliation Data lists Zachary R. Merena 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.
- Piedmont Walton HospitalMonroe, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110046
Practice locations
Addresses where Zachary R. Merena is enrolled with Medicare (CMS data updated October 2, 2026).
- 1010 Pembrook DrWatkinsville, GA 30677
- PO BoxAthens, GA 30604
Specialties
- Physician Assistantprimary
Other physician assistants in Watkinsville
Clinicians with the same Medicare primary specialty in Watkinsville, GA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1174088108 |
| 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