Justin Sardi, MD
NPI 1003443839 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Sardi, MD is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1003443839).
Provider details
- NPI number
- 1003443839
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1022150 (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
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 330 Mount Auburn StCambridge, MA 02138-5597Phone: (607) 547-3456Fax: (607) 547-6612
Registry dates
- Enumerated
- 2020-03-23
- Last updated
- 2025-06-05
- Certified
- 2025-06-05
Frequently asked questions
- What is Justin Sardi's NPI number?
- Justin Sardi's National Provider Identifier (NPI) is 1003443839, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Sardi's specialty?
- Justin Sardi is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Sardi located?
- Justin Sardi's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Justin Sardi's phone number?
- The practice phone number listed in the NPPES registry for Justin Sardi is (617) 726-2000.
- Does Justin Sardi accept Medicare?
- Justin Sardi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Sardi's NPI active?
- Yes — Justin Sardi's NPI (1003443839) is active in the NPPES registry as of the last update on 2025-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.