2026 NPPES data Family Nurse Practitioner NPI 1356624217 FNP
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KERIN FLANAGAN, FNP

Family Nurse Practitioner in BOSTON, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
700
Medicare Part D claims · 94 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$81.38
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KERIN FLANAGAN, FNP filed 700 Medicare Part D claims in 2023 as a Family Nurse Practitioner in BOSTON, Massachusetts, prescribing 78% generic.

700
Part D claims, 2023
78%
generic prescribing
$81.38
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

KERIN FLANAGAN, FNP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

700 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about KERIN FLANAGAN, FNP?

Quality data not reported

NPI registry status

Active

Issued 09/27/2011

NPI 1356624217

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

700 43% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Massachusetts

How Family Nurse Practitioner compares to other specialties among Massachusetts providers

Massachusetts providers

Family Nurse Practitioner share within Massachusetts

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

KERIN FLANAGAN, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 725 ALBANY ST, SUITE 7B, BOSTON, MA, 02118, with a listed phone of (617) 638-8456. NPI 1356624217 was issued on 09/27/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FLANAGAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 700 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $347K in drug spend, split 22% brand-name and 78% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

725 ALBANY ST, SUITE 7B
BOSTON, MA 02118

Provider Details

NPI 1356624217
Specialty Family Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 09/27/2011

Hospital and facility affiliations

Facilities where KERIN FLANAGAN, FNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

BOSTON UNIVERSITY NEUROLOGY ASSOCIATES INC
BOSTON, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for KERIN FLANAGAN, FNP. Source: openpaymentsdata.cms.gov.

Total received

$81

Largest payer

GENZYME CORPORATION

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to KERIN FLANAGAN, FNP. To verify KERIN FLANAGAN, FNP's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

KERIN FLANAGAN, FNP — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 700 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

700
Total Claims
$347K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
904
Total Day Supply
25,422
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$311K
Generic Drug Cost
$36K

Patient Demographics

Average Patient Age
61.3 years
Avg HCC Risk Score
1.28
Gender Split
72% female / 28% male
Age Distribution
<65: 52, 65-74: 32, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What KERIN FLANAGAN, FNP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
71
Dilantin
Phenytoin Sodium Extended
54
Topiramate
54
Levetiracetam
46
Lamotrigine
40
Baclofen
34
Amitriptyline Hcl
27
Sumatriptan Succinate
23
Nurtec Odt
Rimegepant Sulfate
20
Pregabalin
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Nurse Practitioner Overview

How KERIN FLANAGAN, FNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

KERIN FLANAGAN, FNP's 700 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Massachusetts

Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as FLANAGAN.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is KERIN FLANAGAN, FNP's specialty?
KERIN FLANAGAN, FNP specializes in Family Nurse Practitioner and practices in BOSTON, Massachusetts. Credentials: FNP.
How much does KERIN FLANAGAN, FNP prescribe under Medicare Part D?
In 2023, KERIN FLANAGAN, FNP wrote 700 Medicare Part D claims totaling $347K in drug costs for 94 beneficiaries.
Where is KERIN FLANAGAN, FNP located?
KERIN FLANAGAN, FNP is located at 725 ALBANY ST, SUITE 7B, BOSTON, MA, 02118. Phone: (617) 638-8456.
What is KERIN FLANAGAN, FNP's NPI number?
KERIN FLANAGAN, FNP's National Provider Identifier (NPI) is 1356624217, issued on 09/27/2011.
Does KERIN FLANAGAN, FNP prescribe more brand-name or generic drugs?
KERIN FLANAGAN, FNP's prescribing is 22% brand-name and 78% generic drugs by claim count, with $311K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does KERIN FLANAGAN, FNP prescribe most often?
Based on 2023 Medicare Part D data, KERIN FLANAGAN, FNP's most frequently prescribed drugs include Gabapentin, Dilantin, Topiramate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KERIN FLANAGAN, FNP accept Medicare?
KERIN FLANAGAN, FNP appears in CMS Medicare data with 700 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KERIN FLANAGAN, FNP's credentials?
KERIN FLANAGAN, FNP's NPI is 1356624217 with credentials FNP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology