OrganizationActive
Winchester Physician Associates
NPI 1487825394 · Hematology & Oncology Physician · Winchester, MA
Provider details
- NPI number
- 1487825394
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Eileen Wills, Billing Manager(781) 756-7273
- License
- 39982 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
620 Washington St
Winchester, MA 01890-1328
Phone: (781) 756-8388
Fax: (781) 756-8380
Street-level locationGet directions
Mailing address
Po Box 760
Winchester, MA 01890-4260
Other names (DBA / former)
- Doing business as
- Barbara Bjornson MD
Registry dates
- Enumerated
- 2008-03-19
- Last updated
- 2008-12-16
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.