Elizabeth Mullen, MD, FAAP
NPI 1376511477 · Pediatric Hematology & Oncology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Mullen, MD, FAAP is a Pediatric Hematology & Oncology Physician provider in Boston, MA (NPI 1376511477).
Provider details
- NPI number
- 1376511477
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, FAAP
- Sex
- Female
- Sole proprietor
- No
- License
- 80857 (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
20 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)
- 300 Longwood AveBoston, MA 02115-5724Phone: (617) 355-6000
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2025-09-08
- Certified
- 2025-09-08
Frequently asked questions
- What is Elizabeth Mullen's NPI number?
- Elizabeth Mullen's National Provider Identifier (NPI) is 1376511477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Mullen's specialty?
- Elizabeth Mullen is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Elizabeth Mullen located?
- Elizabeth Mullen's practice location on file with NPPES is 450 Brookline Avenue, Boston, MA 02215-5450.
- What is Elizabeth Mullen's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Mullen is (617) 632-1938.
- Does Elizabeth Mullen accept Medicare?
- Elizabeth Mullen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Mullen's NPI active?
- Yes — Elizabeth Mullen's NPI (1376511477) is active in the NPPES registry as of the last update on 2025-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.