Mary Breen, NP
NPI 1366691297 · Gerontology Nurse Practitioner · East Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Breen, NP is a Gerontology Nurse Practitioner provider in East Boston, MA (NPI 1366691297).
Provider details
- NPI number
- 1366691297
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 211767 (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 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 205 | 49 |
| Omeprazole | 188 | 47 |
| Amlodipine Besylate | 180 | 45 |
| Lisinopril | 154 | 37 |
| Diclofenac Sodium | 140 | 50 |
| Gabapentin | 120 | 28 |
| Metoprolol Succinate | 117 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-09-16
- Last updated
- 2012-02-01
Frequently asked questions
- What is Mary Breen's NPI number?
- Mary Breen's National Provider Identifier (NPI) is 1366691297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Breen's specialty?
- Mary Breen is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Breen located?
- Mary Breen's practice location on file with NPPES is 10 Gove St, East Boston, MA 02128-1920.
- What is Mary Breen's phone number?
- The practice phone number listed in the NPPES registry for Mary Breen is (617) 569-5800.
- Does Mary Breen accept Medicare?
- Mary Breen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Breen's NPI active?
- Yes — Mary Breen's NPI (1366691297) is active in the NPPES registry as of the last update on 2012-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.