Catherine Flynn, MSN, RN, FNP-BC
NPI 1881246858 · Family Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Flynn, MSN, RN, FNP-BC is a Family Nurse Practitioner provider in Boston, MA (NPI 1881246858).
Provider details
- NPI number
- 1881246858
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, RN, FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 2312882 (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 tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Zanubrutinibbrand: Brukinsa | 382 | 52 |
| Ibrutinibbrand: Imbruvica | 153 | 22 |
| Venetoclaxbrand: Venclexta | 65 | — |
| Lenalidomidebrand: Revlimid | 55 | 30 |
| Acyclovir | 17 | — |
| Lenalidomide | 17 | 14 |
| Prochlorperazine Maleate | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-07-10
- Last updated
- 2019-08-28
Frequently asked questions
- What is Catherine Flynn's NPI number?
- Catherine Flynn's National Provider Identifier (NPI) is 1881246858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Flynn's specialty?
- Catherine Flynn is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Flynn located?
- Catherine Flynn's practice location on file with NPPES is 450 Brookline Ave, Boston, MA 02215-5450.
- What is Catherine Flynn's phone number?
- The practice phone number listed in the NPPES registry for Catherine Flynn is (617) 632-3000.
- Does Catherine Flynn accept Medicare?
- Catherine Flynn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Flynn's NPI active?
- Yes — Catherine Flynn's NPI (1881246858) is active in the NPPES registry as of the last update on 2019-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.