Aaron Williams, MD
NPI 1881007193 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Williams, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Nashville, TN (NPI 1881007193).
Provider details
- NPI number
- 1881007193
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4301105105 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
51 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) |
|---|---|---|
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 25 | $660 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 | $120 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 11 | $1,415 |
Typical Medicare-allowed amounts for these services range $120–$1,415 (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.
$2,071 across 18 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 (1)
- 2301 Erwin RoadDurham, NC 27710-5000Phone: (812) 786-0848
Registry dates
- Enumerated
- 2014-06-04
- Last updated
- 2024-07-18
- Certified
- 2024-07-18
Frequently asked questions
- What is Aaron Williams's NPI number?
- Aaron Williams's National Provider Identifier (NPI) is 1881007193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Williams's specialty?
- Aaron Williams is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Williams located?
- Aaron Williams's practice location on file with NPPES is 3601 the Vanderbilt Clinic, Nashville, TN 37232-5000.
- What is Aaron Williams's phone number?
- The practice phone number listed in the NPPES registry for Aaron Williams is (615) 322-5000.
- Does Aaron Williams accept Medicare?
- Aaron Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Williams's NPI active?
- Yes — Aaron Williams's NPI (1881007193) is active in the NPPES registry as of the last update on 2024-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.