Carol Ilzarbe, M.D.
NPI 1124253828 · Pediatrics Physician · Cambridge, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carol Ilzarbe, M.D. is a Pediatrics Physician provider in Cambridge, MA (NPI 1124253828).
Provider details
- NPI number
- 1124253828
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 251823 (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
17 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
- 2009-05-25
- Last updated
- 2015-08-27
Frequently asked questions
- What is Carol Ilzarbe's NPI number?
- Carol Ilzarbe's National Provider Identifier (NPI) is 1124253828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Ilzarbe's specialty?
- Carol Ilzarbe is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Carol Ilzarbe located?
- Carol Ilzarbe's practice location on file with NPPES is 330 Mount Auburn St, Cambridge, MA 02138-5502.
- What is Carol Ilzarbe's phone number?
- The practice phone number listed in the NPPES registry for Carol Ilzarbe is (860) 545-9970.
- Does Carol Ilzarbe accept Medicare?
- Carol Ilzarbe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carol Ilzarbe's NPI active?
- Yes — Carol Ilzarbe's NPI (1124253828) is active in the NPPES registry as of the last update on 2015-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.