IndividualActive
Ari Brettman, M.D.
NPI 1972762300 · Internal Medicine Physician · Boston, MA
Ari Brettman, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1972762300).
Provider details
- NPI number
- 1972762300
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L-236495 (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
Massachusetts General Hospital
55 Fruit Street
Boston, MA 02114
Phone: (617) 726-2862
Approximate (ZIP-level) locationGet directions
Mailing address
Massachusetts General Hospital
Boston, MA 02114
Registry dates
- Enumerated
- 2008-06-02
- Last updated
- 2008-06-02
Frequently asked questions
- What is Ari Brettman's NPI number?
- Ari Brettman's National Provider Identifier (NPI) is 1972762300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ari Brettman's specialty?
- Ari Brettman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ari Brettman located?
- Ari Brettman's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is Ari Brettman's phone number?
- The practice phone number listed in the NPPES registry for Ari Brettman is (617) 726-2862.
- Is Ari Brettman's NPI active?
- Yes — Ari Brettman's NPI (1972762300) is active in the NPPES registry as of the last update on 2008-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.