William Schwartz, M.D.
NPI 1275516023 · Neurology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Schwartz, M.D. is a Neurology Physician provider in Worcester, MA (NPI 1275516023).
Provider details
- NPI number
- 1275516023
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47414 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-25
- Last updated
- 2016-03-11
Frequently asked questions
- What is William Schwartz's NPI number?
- William Schwartz's National Provider Identifier (NPI) is 1275516023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Schwartz's specialty?
- William Schwartz is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is William Schwartz located?
- William Schwartz's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is William Schwartz's phone number?
- The practice phone number listed in the NPPES registry for William Schwartz is (508) 856-2527.
- Does William Schwartz accept Medicare?
- William Schwartz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Schwartz's NPI active?
- Yes — William Schwartz's NPI (1275516023) is active in the NPPES registry as of the last update on 2016-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.