Joanne Sullivan, M.D.
NPI 1396965315 · Internal Medicine Physician · Westborough, MA
Joanne Sullivan, M.D. is a Internal Medicine Physician provider in Westborough, MA (NPI 1396965315).
Provider details
- NPI number
- 1396965315
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 158278 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
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
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2025-09-11
Frequently asked questions
- What is Joanne Sullivan's NPI number?
- Joanne Sullivan's National Provider Identifier (NPI) is 1396965315, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Sullivan's specialty?
- Joanne Sullivan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanne Sullivan located?
- Joanne Sullivan's practice location on file with NPPES is 15 Garfield Dr, Westborough, MA 01581-3609.
- What is Joanne Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Joanne Sullivan is (508) 366-3719.
- Is Joanne Sullivan's NPI active?
- Yes — Joanne Sullivan's NPI (1396965315) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.