OrganizationActive
Leo M Cass Mdpc
NPI 1376564534 · Internal Medicine Physician · Winchester, MA
Provider details
- NPI number
- 1376564534
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Leo Cass, President/Physician(781) 721-5025
- License
- 33744 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(95/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
223 Swanton St
Winchester, MA 01890-1968
Phone: (781) 721-5025
Fax: (781) 729-2297
Street-level locationGet directions
Mailing address
Po Box 2706
Woburn, MA 01888-1306
Additional practice locations (1)
- 184 Swanton StWinchester, MA 01890-1921Phone: (781) 721-5025Fax: (781) 729-2297
Registry dates
- Enumerated
- 2006-07-22
- Last updated
- 2018-03-17
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.