Eliza Firn, MD
NPI 1235634106 · Pediatric Critical Care Medicine Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eliza Firn, MD is a Pediatric Critical Care Medicine Physician provider in Boston, MA (NPI 1235634106).
Provider details
- NPI number
- 1235634106
- Entity type
- Individual
- Primary specialty
- Pediatric Critical Care Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MT227755 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-03-24
- Last updated
- 2023-06-27
- Certified
- 2023-06-27
Frequently asked questions
- What is Eliza Firn's NPI number?
- Eliza Firn's National Provider Identifier (NPI) is 1235634106, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eliza Firn's specialty?
- Eliza Firn is listed in the NPPES registry with a primary specialty of Pediatric Critical Care Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eliza Firn located?
- Eliza Firn's practice location on file with NPPES is 1 Boston Medical Ctr Pl Dept of, Boston, MA 02118-2908.
- What is Eliza Firn's phone number?
- The practice phone number listed in the NPPES registry for Eliza Firn is (617) 638-8000.
- Does Eliza Firn accept Medicare?
- Eliza Firn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eliza Firn's NPI active?
- Yes — Eliza Firn's NPI (1235634106) is active in the NPPES registry as of the last update on 2023-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.