John Fantegrossi, NP
NPI 1548218431 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Fantegrossi, NP is a Nurse Practitioner provider in Boston, MA (NPI 1548218431).
Provider details
- NPI number
- 1548218431
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- License
- 229328 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-05-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Fantegrossi's NPI number?
- John Fantegrossi's National Provider Identifier (NPI) is 1548218431, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fantegrossi's specialty?
- John Fantegrossi is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Fantegrossi located?
- John Fantegrossi's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is John Fantegrossi's phone number?
- The practice phone number listed in the NPPES registry for John Fantegrossi is (617) 355-7721.
- Does John Fantegrossi accept Medicare?
- John Fantegrossi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Fantegrossi's NPI active?
- Yes — John Fantegrossi's NPI (1548218431) 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.