2026 NPPES data Registered Nurse NPI 1437562261 NP
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KATELYN ARENA, NP

Registered Nurse in SOUTH WEYMOUTH, 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
1K
Medicare Part D claims · 363 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: KATELYN ARENA, NP is a Registered Nurse ([object Object]) practicing in SOUTH WEYMOUTH, Massachusetts with a Medicare Part D prescribing footprint of 1K claims across 363 beneficiaries — 7% brand-name prescribing .

What stands out: KATELYN ARENA, NP filed 1,052 Medicare Part D claims in 2023 across SOUTH WEYMOUTH, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KATELYN ARENA, NP at a glance

Quality data not reported

NPI registry status

Active

Issued 06/10/2014

NPI 1437562261

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

1,052 5% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Massachusetts

How Registered Nurse compares to other specialties among Massachusetts providers

Massachusetts providers

Registered Nurse share within Massachusetts

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Massachusetts

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Registered Nurse) — 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).

KATELYN ARENA, NP is a Registered Nurse provider practicing in SOUTH WEYMOUTH, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1437562261. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KATELYN ARENA, NP appears in the CMS NPPES registry as a Registered Nurse provider holding NP credentials at 541 MAIN ST STE 301, SOUTH WEYMOUTH, MA, 02190, with a listed phone of (781) 952-1480. NPI 1437562261 was issued on 06/10/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARENA 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 1,052 prescription claims written by this provider, covering 363 Medicare beneficiaries and totaling roughly $56K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 2.6%. 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

541 MAIN ST STE 301
SOUTH WEYMOUTH, MA 02190

Provider Details

NPI 1437562261
Specialty Registered Nurse
Credentials NP
Gender Female
NPI Issued 06/10/2014

Hospital and facility affiliations

Facilities where KATELYN ARENA, NP 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.

HARBOR MEDICAL ASSOCIATES INC
S WEYMOUTH, MA
MASS GENERAL BRIGHAM MEDICAL GROUP SUBURBAN MASSACHUSETTS INC
NEWTON, 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).

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 KATELYN ARENA, NP. To verify KATELYN ARENA, NP'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 · Generic-heavy

KATELYN ARENA, NP — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 1,052 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.

1,052
Total Claims
$56K
Total Drug Cost
363
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,124
Total Day Supply
59,365
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$38K
Generic Drug Cost
$17K
Opioid Claims
27 (2.6% rate)
Antibiotic Claims
60

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.40
Gender Split
82% female / 18% male
Age Distribution
<65: 44, 65-74: 136, 75-84: 139, 85+: 44

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lisinopril
76
Amlodipine Besylate
58
Levothyroxine Sodium
58
Atorvastatin Calcium
44
Gabapentin
39
Sertraline Hcl
33
Mirtazapine
31
Hydrochlorothiazide
29
Omeprazole
28
Prednisone
23

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

Registered Nurse Overview

How KATELYN ARENA, NP fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

KATELYN ARENA, NP's 1,052 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in Massachusetts

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATELYN ARENA, NP's specialty?
KATELYN ARENA, NP specializes in Registered Nurse and practices in SOUTH WEYMOUTH, Massachusetts. Credentials: NP.
How much does KATELYN ARENA, NP prescribe under Medicare Part D?
In 2023, KATELYN ARENA, NP wrote 1,052 Medicare Part D claims totaling $56K in drug costs for 363 beneficiaries.
Where is KATELYN ARENA, NP located?
KATELYN ARENA, NP is located at 541 MAIN ST STE 301, SOUTH WEYMOUTH, MA, 02190. Phone: (781) 952-1480.
What is KATELYN ARENA, NP's NPI number?
KATELYN ARENA, NP's National Provider Identifier (NPI) is 1437562261, issued on 06/10/2014.
Does KATELYN ARENA, NP prescribe more brand-name or generic drugs?
KATELYN ARENA, NP's prescribing is 7% brand-name and 93% generic drugs by claim count, with $38K in brand drug costs.
Does KATELYN ARENA, NP prescribe opioids?
Yes, KATELYN ARENA, NP had 27 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does KATELYN ARENA, NP prescribe most often?
Based on 2023 Medicare Part D data, KATELYN ARENA, NP's most frequently prescribed drugs include Lisinopril, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATELYN ARENA, NP accept Medicare?
KATELYN ARENA, NP appears in CMS Medicare data with 1,052 Part D claims and 363 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATELYN ARENA, NP's credentials?
KATELYN ARENA, NP's NPI is 1437562261 with credentials NP. 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