William Duvall, M.D.
NPI 1174560403 · Nuclear Cardiology Physician · Hartford, CT
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Duvall, M.D. is a Nuclear Cardiology Physician provider in Hartford, CT (NPI 1174560403).
Provider details
- NPI number
- 1174560403
- Entity type
- Individual
- Primary specialty
- Nuclear Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 220964 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
769 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 of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 199 | $69 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 114 | $14 |
| Nuclear Medicine Study, Spect Imaging, 1 Area Or Single Acquisition, Single Day Imaging78803 | 72 | $51 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 61 | $21 |
| Nuclear Medicine Studies of Blood Flow in Heart Muscle at Rest and With Stress With Concurrent Ct Scan78431 | 57 | $88 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$665 across 25 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
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2013-07-03
Frequently asked questions
- What is William Duvall's NPI number?
- William Duvall's National Provider Identifier (NPI) is 1174560403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Duvall's specialty?
- William Duvall is listed in the NPPES registry with a primary specialty of Nuclear Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Duvall located?
- William Duvall's practice location on file with NPPES is 80 Seymour Street, Hartford, CT 06102-5037.
- What is William Duvall's phone number?
- The practice phone number listed in the NPPES registry for William Duvall is (860) 545-5517.
- Does William Duvall accept Medicare?
- William Duvall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Duvall's NPI active?
- Yes — William Duvall's NPI (1174560403) is active in the NPPES registry as of the last update on 2013-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.