NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1164533717 MSNAPRN
Verify on CMS → Cathy Berens, MSNAPRN
Nurse Practitioner in Casper, Wyoming.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,700 in Nurse Practitioner, 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
995
Medicare Part D claims · 85 beneficiaries · Nurse Practitioner avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Cathy Berens, MSNAPRN filed 995 Medicare Part D claims in 2023 as a Nurse Practitioner in Casper, Wyoming.
- 995
- Part D claims, 2023
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.
Cathy Berens, MSNAPRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
995 Top 25% higher than 75% 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 Cathy Berens, MSNAPRN?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
995 8% vs specialty avg
Specialty distribution in Wyoming
How Nurse Practitioner compares to other specialties among Wyoming 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 Nurse Practitioner. 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).
Cathy Berens, MSNAPRN appears in the CMS NPPES registry as a Nurse Practitioner provider holding MSNAPRN credentials at 940 EAST 3RD STREET, Casper, WY, 82601, with a listed phone of (307) 265-1500. NPI 1164533717 was issued on 08/31/2006.
Medicare Part D records for calendar year 2023 show 995 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $81K in drug spend.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1164533717 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | MSNAPRN |
| Gender | Female |
| NPI Issued | 08/31/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
995
Total Claims
$81K
Total Drug Cost
85
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,189
- Total Day Supply
- 62,753
- Generic Drug Cost
- $23K
- Antibiotic Claims
- 56
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 0.65
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Cathy Berens, MSNAPRN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
94 claims
- Estradiol
Estradiol
65 claims
- Hydrochlorothiazide
Hydrochlorothiazide
43 claims
- Atorvastatin Calcium
Atorvastatin Calcium
38 claims
- Duloxetine Hcl 29
Duloxetine Hcl
29 claims
- Metformin Hcl Er 29
Metformin Hcl Er
29 claims
- Trazodone Hcl 28
Trazodone Hcl
28 claims
- Pantoprazole Sodium 27
Pantoprazole Sodium
27 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 94 |
| Estradiol | 65 |
| Hydrochlorothiazide | 43 |
| Atorvastatin Calcium | 38 |
| Duloxetine Hcl | 29 |
| Metformin Hcl Er Metformin Hcl | 29 |
| Trazodone Hcl | 28 |
| Pantoprazole Sodium | 27 |
| Alendronate Sodium | 25 |
| Omeprazole | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Cathy Berens, MSNAPRN fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Cathy Berens, MSNAPRN's 995 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Wyoming
Other clinicians with the same primary specialty enrolled in Wyoming, drawn from the same CMS NPPES roster as Berens.
Dr. Hilary Adams
ARNP
Laramie, WY
Dr. Cassie Amadio
NP-C
Casper, WY
Serge Andreyeff
Sheridan, WY
Dr. Sharon Bailey
DNP
Jackson, WY
Dr. Jacklyn Baker
APRN
Gillette, WY
Compare Nurse Practitioner 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 Wyoming medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nurse Practitioner 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Wyoming
Frequently Asked Questions
What is Cathy Berens, MSNAPRN's specialty? ▼
Cathy Berens, MSNAPRN specializes in Nurse Practitioner and practices in Casper, Wyoming. Credentials: MSNAPRN.
How much does Cathy Berens, MSNAPRN prescribe under Medicare Part D? ▼
In 2023, Cathy Berens, MSNAPRN wrote 995 Medicare Part D claims totaling $81K in drug costs for 85 beneficiaries.
Where is Cathy Berens, MSNAPRN located? ▼
Cathy Berens, MSNAPRN is located at 940 EAST 3RD STREET, Casper, WY, 82601. Phone: (307) 265-1500.
What is Cathy Berens, MSNAPRN's NPI number? ▼
Cathy Berens, MSNAPRN's National Provider Identifier (NPI) is 1164533717, issued on 08/31/2006.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Cathy Berens, MSNAPRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Cathy Berens, MSNAPRN's most frequently prescribed drugs include Levothyroxine Sodium, Estradiol, Hydrochlorothiazide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cathy Berens, MSNAPRN accept Medicare? ▼
Cathy Berens, MSNAPRN appears in CMS Medicare data with 995 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cathy Berens, MSNAPRN's credentials? ▼
Cathy Berens, MSNAPRN's NPI is 1164533717 with credentials MSNAPRN. 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.