Internal Medicine, Hematology & Oncology
JAROSLAW JAC MD
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1326029802 · enumerated 2005-11-10 · record updated 2026-07-24. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Addresses and phones
- Mailing address 15 HOSPITAL DR, YORK, ME, 03909-1011 (207) 351-2478 Fax (207) 351-2216 Google Maps Apple Maps OpenStreetMap
- Practice location 150 FLANDERS RD, WESTBOROUGH, MA, 01581-1017 (508) 870-2222 Google Maps Apple Maps OpenStreetMap
Specialties
- Internal Medicine 207R00000X · License 238060 MA
- Internal Medicine, Hematology & Oncology 207RH0003X · License 35312 NH
- Internal Medicine 207R00000X · License 35312 NH
- Internal Medicine, Hematology & Oncology 207RH0003X · Primary · License 238060 MA
- Internal Medicine, Hematology & Oncology 207RH0003X · License J9106 TX
- Internal Medicine, Hematology & Oncology 207RH0003X · License MD13980 ME
In this directory
MA Worcester County Westborough Internal Medicine, Hematology & Oncology
Locations and evidence
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Practice location
WESTBOROUGH, MA, 015811017
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.