NPI registry status
Active
2026 NPPES data Clinical Nurse Specialist NPI 1124425046 APRN-CNS
Verify on CMS → Violet Darrow, APRN-CNS
Clinical Nurse Specialist in Tulsa, Oklahoma.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,715 in Clinical Nurse Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
536
Medicare Part D claims · 211 beneficiaries · Clinical Nurse Specialist avg: 953
Industry payments
$106.25
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Violet Darrow, APRN-CNS filed 536 Medicare Part D claims in 2023 as a Clinical Nurse Specialist in Tulsa, Oklahoma.
- 536
- Part D claims, 2023
- $106.25
- 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.
Violet Darrow, APRN-CNS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
536 Top 34% higher than 66% of 1,370,886 prescribers
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 Violet Darrow, APRN-CNS?
Quality data not reportedPrimary specialty
Clinical Nurse Specialist
Medicare Part D claims
536 44% vs specialty avg
Specialty distribution in Oklahoma
How Clinical Nurse Specialist compares to other specialties among Oklahoma providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Clinical Nurse Specialist. Verify directly:
How MIPS and board certification work
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).
Violet Darrow, APRN-CNS appears in the CMS NPPES registry as a Clinical Nurse Specialist provider holding APRN-CNS credentials at 1145 S UTICA AVE, Tulsa, OK, 74104, with a listed phone of (918) 579-5749. NPI 1124425046 was issued on 11/20/2014.
Medicare Part D records for calendar year 2023 show 536 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $26K in drug spend.
Clinical Nurse Specialist is a narrow specialty nationwide, with 1,715 enrolled providers across 49 states and an average of 953 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
Provider Details
| NPI | 1124425046 |
|---|---|
| Specialty | Clinical Nurse Specialist |
| Credentials | APRN-CNS |
| Gender | Female |
| NPI Issued | 11/20/2014 |
Hospital and facility affiliations
Facilities where Violet Darrow, APRN-CNS 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.
Usacs Observation Medicine Services OF Oklahoma, LLC
Owasso, OK
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 Violet Darrow, APRN-CNS. Source: openpaymentsdata.cms.gov.
Total received
$106
Largest payer
Alexion Pharmaceuticals, Inc.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
536
Total Claims
$26K
Total Drug Cost
211
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 559
- Total Day Supply
- 11,056
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 141
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 2.25
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 31, 65-74: 67, 75-84: 69, 85+: 44
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Violet Darrow, APRN-CNS prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cefuroxime
Cefuroxime
41 claims
- Pantoprazole Sodium
Pantoprazole Sodium
37 claims
- Prednisone
Prednisone
34 claims
- Azithromycin
Azithromycin
25 claims
- Eliquis
Eliquis
23 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
17 claims
- Atorvastatin Calcium 14
Atorvastatin Calcium
14 claims
- Clopidogrel 13
Clopidogrel
13 claims
| Drug | Claims |
|---|---|
| Cefuroxime Cefuroxime Axetil | 41 |
| Pantoprazole Sodium | 37 |
| Prednisone | 34 |
| Azithromycin | 25 |
| Eliquis Apixaban | 23 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 17 |
| Atorvastatin Calcium | 14 |
| Clopidogrel Clopidogrel Bisulfate | 13 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 12 |
| Metronidazole | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Nurse Specialist Overview
How Violet Darrow, APRN-CNS fits within the Clinical Nurse Specialist landscape nationally.
1,715
Clinical Nurse Specialist Providers in US
49
States with Clinical Nurse Specialist
953
Avg Claims per Provider
Violet Darrow, APRN-CNS's 536 claims are below the specialty average of 953.
Nearby Clinical Nurse Specialist Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Darrow.
Dr. Joan Adams
APRN-CNS
Oklahoma City, OK
Dr. Sandra Attebery
RNC MSN CNSBC CWON C
Muskogee, OK
Dr. Denise Bennett
APRN-CNS
Oklahoma City, OK
Dr. Stacy Boothe
CNS
Norman, OK
Dr. Iris Borem
C.N.S.
Tulsa, OK
Compare Clinical Nurse Specialist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Oklahoma medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Clinical Nurse Specialist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
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Frequently Asked Questions
What is Violet Darrow, APRN-CNS's specialty? ▼
Violet Darrow, APRN-CNS specializes in Clinical Nurse Specialist and practices in Tulsa, Oklahoma. Credentials: APRN-CNS.
How much does Violet Darrow, APRN-CNS prescribe under Medicare Part D? ▼
In 2023, Violet Darrow, APRN-CNS wrote 536 Medicare Part D claims totaling $26K in drug costs for 211 beneficiaries.
Where is Violet Darrow, APRN-CNS located? ▼
Violet Darrow, APRN-CNS is located at 1145 S UTICA AVE, Tulsa, OK, 74104. Phone: (918) 579-5749.
What is Violet Darrow, APRN-CNS's NPI number? ▼
Violet Darrow, APRN-CNS's National Provider Identifier (NPI) is 1124425046, issued on 11/20/2014.
How many Clinical Nurse Specialist providers are there in the US? ▼
There are 1,715 Clinical Nurse Specialist providers across 49 states in the US. The average Clinical Nurse Specialist provider writes 953 Medicare Part D claims per year.
What drugs does Violet Darrow, APRN-CNS prescribe most often? ▼
Based on 2023 Medicare Part D data, Violet Darrow, APRN-CNS's most frequently prescribed drugs include Cefuroxime, Pantoprazole Sodium, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Violet Darrow, APRN-CNS accept Medicare? ▼
Violet Darrow, APRN-CNS appears in CMS Medicare data with 536 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Violet Darrow, APRN-CNS's credentials? ▼
Violet Darrow, APRN-CNS's NPI is 1124425046 with credentials APRN-CNS. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.