Quick answers
- Does Zachary Chadnick accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary Chadnick 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 Zachary Chadnick see?
- In 2024, CMS data shows 79 Original Medicare patients and 139 services for Zachary Chadnick. This counts Original Medicare only and measures volume, not quality.
- What is Zachary Chadnick's NPI number?
- 1366977415. 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 Chadnick, 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 | 79 |
|---|---|
| Services billed to Medicare | 139 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)15 services
- Ultrasound of both sides of head and neck blood flow (93880)13 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%
- Chronic kidney disease51%
- Ischemic heart disease48%
- Arthritis44%
- Diabetes43%
Hospitals where Zachary Chadnick works
Medicare's Facility Affiliation Data lists Zachary Chadnick 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.
- Prisma Health BaptistColumbia, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420086
- Prisma Health Baptist ParkridgeColumbia, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420106
- Prisma Health Richland HospitalColumbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420018
- Prisma Health Tuomey HospitalSumter, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420070
Practice locations
Addresses where Zachary Chadnick is enrolled with Medicare (CMS data updated October 2, 2026).
- 3 Richland Medical Park Dr, Suite 330Columbia, SC 29203 (803) 434‑4790
Group practices
Medicare enrollment lists Zachary Chadnick as a member of this group (CMS data updated October 2, 2026).
- Prisma Health Medical Group-Midlands1,068 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Columbia
Clinicians with the same Medicare primary specialty in Columbia, SC — not a recommendation.
Other clinicians in Prisma Health Medical Group-Midlands
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366977415 |
| 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