IndividualActive
John Fagnou, M.D.
NPI 1730319369 · Diagnostic Radiology Physician · Boston, MA
John Fagnou, M.D. is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1730319369).
Provider details
- NPI number
- 1730319369
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L-239520 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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) 726-8323
Approximate (ZIP-level) locationGet directions
Mailing address
Massachusetts General Hospital
Boston, MA 02114
Registry dates
- Enumerated
- 2009-07-16
- Last updated
- 2009-07-16
Frequently asked questions
- What is John Fagnou's NPI number?
- John Fagnou's National Provider Identifier (NPI) is 1730319369, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fagnou's specialty?
- John Fagnou is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Fagnou located?
- John Fagnou's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is John Fagnou's phone number?
- The practice phone number listed in the NPPES registry for John Fagnou is (617) 726-8323.
- Is John Fagnou's NPI active?
- Yes — John Fagnou's NPI (1730319369) is active in the NPPES registry as of the last update on 2009-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.