Zachary Chadnick, M.D.
NPI 1366977415 · Vascular Surgery Physician · Sumter, SC
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Chadnick, M.D. is a Vascular Surgery Physician provider in Sumter, SC (NPI 1366977415).
Provider details
- NPI number
- 1366977415
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
28 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 15 | $31 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 13 | $36 |
Typical Medicare-allowed amounts for these services range $31–$36 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,435 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 263 Farmington AveFarmington, CT 06030-0002Phone: (860) 679-2000
- 80 Seymour StHartford, CT 06106-3300Phone: (860) 545-5000
Registry dates
- Enumerated
- 2017-04-26
- Last updated
- 2024-08-16
- Certified
- 2024-08-16
Frequently asked questions
- What is Zachary Chadnick's NPI number?
- Zachary Chadnick's National Provider Identifier (NPI) is 1366977415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Chadnick's specialty?
- Zachary Chadnick is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Chadnick located?
- Zachary Chadnick's practice location on file with NPPES is 115 N Sumter St Ste 300, Sumter, SC 29150-4967.
- What is Zachary Chadnick's phone number?
- The practice phone number listed in the NPPES registry for Zachary Chadnick is (803) 775-1550.
- Does Zachary Chadnick accept Medicare?
- Zachary Chadnick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Chadnick's NPI active?
- Yes — Zachary Chadnick's NPI (1366977415) is active in the NPPES registry as of the last update on 2024-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.