2026 NPPES data Registered Nurse NPI 1174759666 RN BC ARNP
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SHELBY ALLEN-BENITZ, RN BC ARNP

Registered Nurse in MASON CITY, Iowa. 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
2K
Medicare Part D claims · 123 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SHELBY ALLEN-BENITZ, RN BC ARNP is a Registered Nurse ([object Object]) practicing in MASON CITY, Iowa with a Medicare Part D prescribing footprint of 2K claims across 123 beneficiaries — 8% brand-name prescribing .

What stands out: SHELBY ALLEN-BENITZ, RN BC ARNP filed 2,021 Medicare Part D claims in 2023 across MASON CITY, Iowa. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SHELBY ALLEN-BENITZ, RN BC ARNP at a glance

Quality data not reported

NPI registry status

Active

Issued 06/10/2009

NPI 1174759666

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

2,021 102% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Iowa

How Registered Nurse compares to other specialties among Iowa providers

Iowa providers

Registered Nurse share within Iowa

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

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).

SHELBY ALLEN-BENITZ, RN BC ARNP is a Registered Nurse provider practicing in MASON CITY, Iowa, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: RN BC ARNP. NPI: 1174759666. 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.

SHELBY ALLEN-BENITZ, RN BC ARNP appears in the CMS NPPES registry as a Registered Nurse provider holding RN BC ARNP credentials at 235 S EISENHOWER AVE, MASON CITY, IA, 50401, with a listed phone of (641) 424-2075. NPI 1174759666 was issued on 06/10/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALLEN-BENITZ 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 2,021 prescription claims written by this provider, covering 123 Medicare beneficiaries and totaling roughly $380K in drug spend, split 8% brand-name and 92% 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.

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

235 S EISENHOWER AVE
MASON CITY, IA 50401

Provider Details

NPI 1174759666
Specialty Registered Nurse
Credentials RN BC ARNP
Gender Female
NPI Issued 06/10/2009

Hospital and facility affiliations

Facilities where SHELBY ALLEN-BENITZ, RN BC ARNP 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.

PRAIRIE RIDGE INTEGRATED BEHAVIORAL HEALTHCARE
MASON CITY, IA

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

Brand vs generic prescribing mix · Generic-heavy

SHELBY ALLEN-BENITZ, RN BC ARNP — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 2,021 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.

2,021
Total Claims
$380K
Total Drug Cost
123
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,410
Total Day Supply
69,332
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$327K
Generic Drug Cost
$52K

Patient Demographics

Average Patient Age
57.0 years
Avg HCC Risk Score
1.38
Gender Split
61% female / 39% male
Age Distribution
<65: 81, 65-74: 36, 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.

Drug Claims
Trazodone Hcl
146
Venlafaxine Hcl Er
Venlafaxine Hcl
133
Bupropion Xl
Bupropion Hcl
129
Escitalopram Oxalate
101
Lamotrigine
100
Quetiapine Fumarate
98
Clonazepam
88
Buspirone Hcl
81
Sertraline Hcl
78
Fluoxetine Hcl
60

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

Registered Nurse Overview

How SHELBY ALLEN-BENITZ, RN BC ARNP 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

SHELBY ALLEN-BENITZ, RN BC ARNP's 2,021 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in Iowa

Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as ALLEN-BENITZ.

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

Frequently Asked Questions

What is SHELBY ALLEN-BENITZ, RN BC ARNP's specialty?
SHELBY ALLEN-BENITZ, RN BC ARNP specializes in Registered Nurse and practices in MASON CITY, Iowa. Credentials: RN BC ARNP.
How much does SHELBY ALLEN-BENITZ, RN BC ARNP prescribe under Medicare Part D?
In 2023, SHELBY ALLEN-BENITZ, RN BC ARNP wrote 2,021 Medicare Part D claims totaling $380K in drug costs for 123 beneficiaries.
Where is SHELBY ALLEN-BENITZ, RN BC ARNP located?
SHELBY ALLEN-BENITZ, RN BC ARNP is located at 235 S EISENHOWER AVE, MASON CITY, IA, 50401. Phone: (641) 424-2075.
What is SHELBY ALLEN-BENITZ, RN BC ARNP's NPI number?
SHELBY ALLEN-BENITZ, RN BC ARNP's National Provider Identifier (NPI) is 1174759666, issued on 06/10/2009.
Does SHELBY ALLEN-BENITZ, RN BC ARNP prescribe more brand-name or generic drugs?
SHELBY ALLEN-BENITZ, RN BC ARNP's prescribing is 8% brand-name and 92% generic drugs by claim count, with $327K in brand drug costs.
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 SHELBY ALLEN-BENITZ, RN BC ARNP prescribe most often?
Based on 2023 Medicare Part D data, SHELBY ALLEN-BENITZ, RN BC ARNP's most frequently prescribed drugs include Trazodone Hcl, Venlafaxine Hcl Er, Bupropion Xl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHELBY ALLEN-BENITZ, RN BC ARNP accept Medicare?
SHELBY ALLEN-BENITZ, RN BC ARNP appears in CMS Medicare data with 2,021 Part D claims and 123 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHELBY ALLEN-BENITZ, RN BC ARNP's credentials?
SHELBY ALLEN-BENITZ, RN BC ARNP's NPI is 1174759666 with credentials RN BC ARNP. 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