Jaroslaw Jac, MD
Internal Medicine, Hematology & Oncology in Westborough, Massachusetts
1326029802- Practice location
- 150 Flanders RD, Westborough, MA 01581-1017
- Phone
- 508-870-2222
- Fax
- —
- Last updated
- July 24, 2026
Jaroslaw Jac is an Internal Medicine, Hematology & Oncology based in Westborough, MA. Jaroslaw Jac practices in Westborough, MA and has the professional credentials of MD. The NPI Number for Jaroslaw Jac is 1326029802 and holds a License No. 238060 (MA). The current practice location address for Jaroslaw Jac is 150 Flanders RD, Westborough, MA 01581-1017 and can be reached out via phone at 508-870-2222.
Provider Profile Details
- NPI Number
- 1326029802
- Provider Name
- Jaroslaw Jac
- Credential
- MD
- Provider Entity Type
- Individual
- Gender
- Male
- Address
- 150 Flanders RD, Westborough, MA 01581-1017
- Phone Number
- 508-870-2222
- Primary Taxonomy
- Internal Medicine, Hematology & Oncology · 207RH0003X
- Sole Proprietor
- No
- Provider Enumeration Date
- November 10, 2005
- Last Update Date
- July 24, 2026
- Certification Date
- July 24, 2026
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 150 Flanders RD
Westborough, MA 01581-1017 - City
- Westborough
- State
- Massachusetts
- Zip
- 01581-1017
- Phone Number
- 508-870-2222
Provider Business Mailing Address Details
- Address
- 15 Hospital Dr
York, ME 03909-1011 - City
- York
- State
- ME
- Zip
- 03909-1011
- Phone Number
- 207-351-2478
- Fax Number
- 207-351-2216
License Information
- License Number (1)
- 238060
- License State (1)
- MA
- Taxonomy (1)
- Internal Medicine · 207R00000X
- License Number (2)
- 35312
- License State (2)
- NH
- Taxonomy (2)
- Internal Medicine, Hematology & Oncology · 207RH0003X
- License Number (3)
- 35312
- License State (3)
- NH
- Taxonomy (3)
- Internal Medicine · 207R00000X
- License Number (4)
- 238060
- License State (4)
- MA
- Taxonomy (4)
- Internal Medicine, Hematology & Oncology · 207RH0003X · Primary
- License Number (5)
- J9106
- License State (5)
- TX
- Taxonomy (5)
- Internal Medicine, Hematology & Oncology · 207RH0003X
- License Number (6)
- MD13980
- License State (6)
- ME
- Taxonomy (6)
- Internal Medicine, Hematology & Oncology · 207RH0003X
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
Other Internal Medicine, Hematology & Oncology providers near Westborough, MA
View all Internal Medicine, Hematology & Oncology providers in Westborough →- Ainsley BoettgerCounselor · NPI 1023927142
- Arc Of Massachusetts, LLCSubstance Abuse Rehabilitation Facility · NPI 1992610026
- Aware Recovery Care Of Massachusetts, LLCCommunity/Behavioral Health · NPI 1285366351
- Aware Recovery Care Of Massachusetts, LLCSubstance Abuse Rehabilitation Facility · NPI 1700404464
- Dr. Kenneth L Appelbaum, MDPsychiatry & Neurology, Psychiatry · NPI 1366416471
- Acupuncture Specialists MaAcupuncturist · NPI 1942130752
Frequently Asked Questions
What is the NPI number of Jaroslaw Jac, MD?
The NPI number of Jaroslaw Jac, MD is 1326029802. It was assigned on November 10, 2005 and is currently active in the NPPES registry.
What is the specialty of Jaroslaw Jac, MD?
Jaroslaw Jac, MD is registered under the primary taxonomy Internal Medicine, Hematology & Oncology (code 207RH0003X), licensed in MA under license number 238060.
Where does Jaroslaw Jac, MD practice?
The practice location is 150 Flanders RD, Westborough, MA 01581-1017. The office can be reached at 508-870-2222 (phone).
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.
How do I verify this NPI record?
This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1326029802 directly on the NPPES registry website.