Clara Breen, RN
NPI 1780336651 · Certified Registered Nurse Anesthetist · Newton, MA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clara Breen, RN is a Certified Registered Nurse Anesthetist provider in Newton, MA (NPI 1780336651).
Provider details
- NPI number
- 1780336651
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 2280757 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
54 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Procedure on Nerves, Muscles, Tendons, and Tissue of Forearm, Wrist, and Hand01810 | 16 | $65 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 15 | $79 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 12 | $70 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 11 | $160 |
Typical Medicare-allowed amounts for these services range $65–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-01-21
- Last updated
- 2023-07-10
- Certified
- 2023-07-10
Frequently asked questions
- What is Clara Breen's NPI number?
- Clara Breen's National Provider Identifier (NPI) is 1780336651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clara Breen's specialty?
- Clara Breen is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clara Breen located?
- Clara Breen's practice location on file with NPPES is 2014 Washington St, Newton, MA 02462-1607.
- What is Clara Breen's phone number?
- The practice phone number listed in the NPPES registry for Clara Breen is (617) 243-6298.
- Does Clara Breen accept Medicare?
- Clara Breen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clara Breen's NPI active?
- Yes — Clara Breen's NPI (1780336651) is active in the NPPES registry as of the last update on 2023-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.