John Defrancisco
NPI 1427922418 · Medical Physician Assistant · Boston, MA
John Defrancisco is a Medical Physician Assistant provider in Boston, MA (NPI 1427922418).
Provider details
- NPI number
- 1427922418
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
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
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2025-10-02
- Last updated
- 2025-10-02
- Certified
- 2025-10-02
Frequently asked questions
- What is John Defrancisco's NPI number?
- John Defrancisco's National Provider Identifier (NPI) is 1427922418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Defrancisco's specialty?
- John Defrancisco is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Defrancisco located?
- John Defrancisco's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is John Defrancisco's phone number?
- The practice phone number listed in the NPPES registry for John Defrancisco is (617) 355-6000.
- Is John Defrancisco's NPI active?
- Yes — John Defrancisco's NPI (1427922418) is active in the NPPES registry as of the last update on 2025-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.