William Siegel, MD
NPI 1336120757 · Cardiovascular Disease Physician · Brockton, MA
William Siegel, MD is a Cardiovascular Disease Physician provider in Brockton, MA (NPI 1336120757).
Provider details
- NPI number
- 1336120757
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 50750 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 106 | 77 |
| Apixabanbrand: Eliquis | 96 | 49 |
| Atorvastatin Calcium | 64 | 46 |
| Amlodipine Besylate | 58 | 38 |
| Rosuvastatin Calcium | 43 | 28 |
| Warfarin Sodium | 36 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-11
- Last updated
- 2021-02-16
- Certified
- 2021-02-16
Frequently asked questions
- What is William Siegel's NPI number?
- William Siegel's National Provider Identifier (NPI) is 1336120757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Siegel's specialty?
- William Siegel is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Siegel located?
- William Siegel's practice location on file with NPPES is 110 Liberty Street, Brockton, MA 02301.
- What is William Siegel's phone number?
- The practice phone number listed in the NPPES registry for William Siegel is (508) 894-0400.
- Is William Siegel's NPI active?
- Yes — William Siegel's NPI (1336120757) is active in the NPPES registry as of the last update on 2021-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.