Jeff Flier, MD
NPI 1164468419 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Jeff Flier, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1164468419).
Provider details
- NPI number
- 1164468419
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42636 (MA)
Specialties & taxonomies
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
- 2006-06-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jeff Flier's NPI number?
- Jeff Flier's National Provider Identifier (NPI) is 1164468419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeff Flier's specialty?
- Jeff Flier is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Jeff Flier located?
- Jeff Flier's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is Jeff Flier's phone number?
- The practice phone number listed in the NPPES registry for Jeff Flier is (617) 667-1769.
- Is Jeff Flier's NPI active?
- Yes — Jeff Flier's NPI (1164468419) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.