DR. JOANNE SULLIVAN (M.D.) – Internal Medicine Physician, NPI 1396965315

DR. JOANNE SULLIVAN (M.D.) is a healthcare provider. based in Westborough, Massachusetts. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 158278 (MA). The NPI Number for DR. JOANNE SULLIVAN (M.D.) is 1396965315

Main info

Female
Sole Proprietor
Name
DR. JOANNE SULLIVAN (M.D.)
NPI
1396965315
Phone
(508) 366-3719
Address
15 GARFIELD DR
Enumeration Date
1 May 2007
Last Update Date
11 September 2025
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience57
Completeness85
Years active:19State licenses:1Digital endpointsOther names

Provider Addresses for DR. JOANNE SULLIVAN (M.D.)

  • 15 GARFIELD DR

    WESTBOROUGH, MA 015813609

    Phone: (508) 366-3719

    Fax: (508) 366-3719

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 01581)

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Frequently asked questions

What is the standard ID for DR. JOANNE SULLIVAN (M.D.) in the U.S.?
In the U.S., DR. JOANNE SULLIVAN (M.D.) is identified by NPI 1396965315.
Should I treat DR. JOANNE SULLIVAN (M.D.) as an active provider?
Patients and plans typically see DR. JOANNE SULLIVAN (M.D.) as active in the national extract.
What type of care does DR. JOANNE SULLIVAN (M.D.) provide?
DR. JOANNE SULLIVAN (M.D.)'s profile centers on Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Can patients visit DR. JOANNE SULLIVAN (M.D.) in Westborough, Massachusetts?
For routing, start with Westborough, Massachusetts for DR. JOANNE SULLIVAN (M.D.), then verify phone and hours locally.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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