Nicole Leggiero, MD
NPI 1649973363 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicole Leggiero, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1649973363).
Provider details
- NPI number
- 1649973363
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 1026114 (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
3 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
- 2023-03-22
- Last updated
- 2026-05-01
- Certified
- 2026-05-01
Frequently asked questions
- What is Nicole Leggiero's NPI number?
- Nicole Leggiero's National Provider Identifier (NPI) is 1649973363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicole Leggiero's specialty?
- Nicole Leggiero is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicole Leggiero located?
- Nicole Leggiero's practice location on file with NPPES is 801 Massachusetts Ave, Suite 6c, Boston, MA 02118-2605.
- What is Nicole Leggiero's phone number?
- The practice phone number listed in the NPPES registry for Nicole Leggiero is (617) 414-5951.
- Does Nicole Leggiero accept Medicare?
- Nicole Leggiero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicole Leggiero's NPI active?
- Yes — Nicole Leggiero's NPI (1649973363) is active in the NPPES registry as of the last update on 2026-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.