Stephen Tosi, M.D.
NPI 1558334045 · Urology Physician · Worcester, MA
Stephen Tosi, M.D. is a Urology Physician provider in Worcester, MA (NPI 1558334045).
Provider details
- NPI number
- 1558334045
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 40210 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-02-07
- Last updated
- 2020-10-27
- Certified
- 2020-10-27
Frequently asked questions
- What is Stephen Tosi's NPI number?
- Stephen Tosi's National Provider Identifier (NPI) is 1558334045, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Tosi's specialty?
- Stephen Tosi is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Tosi located?
- Stephen Tosi's practice location on file with NPPES is 291 Lincoln St, Worcester, MA 01605-3643.
- What is Stephen Tosi's phone number?
- The practice phone number listed in the NPPES registry for Stephen Tosi is (508) 755-8663.
- Is Stephen Tosi's NPI active?
- Yes — Stephen Tosi's NPI (1558334045) is active in the NPPES registry as of the last update on 2020-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.