NPI registry status
Active
2026 NPPES data Occupational Medicine Physician NPI 1255403457 ARNP, FNP-C
Verify on CMS → Diane Wrenn, ARNP, FNP-C
Occupational Medicine Physician in Rawlins, 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 2,230 in Occupational Medicine Physician, 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
144
Medicare Part D claims · 37 beneficiaries · Occupational Medicine Physician avg: 605
MIPS score
58.5/100
▼ 25 pts below national avg 83.1 · Mid-tier
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Diane Wrenn, ARNP, FNP-C reported a CMS MIPS final score of 58.5/100 - below the 83.1 national average - and filed 144 Medicare Part D claims in 2023.
- 58.5/100
- MIPS score · -25 vs avg
- 144
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Diane Wrenn, ARNP, FNP-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
59 5th percentile higher than 5% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Diane Wrenn, ARNP, FNP-C sits
This provider among occupational medicine physician peers
Across the 46 occupational medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Diane Wrenn, ARNP, FNP-C writes more Part D claims than 30% of them and scores higher on MIPS quality than 4% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one occupational medicine physician peer from a representative sample of 45; the gold marker is Diane Wrenn, ARNP, FNP-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Diane Wrenn, ARNP, FNP-C practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Diane Wrenn, ARNP, FNP-C?
Below national averagePrimary specialty
Occupational Medicine Physician
Medicare Part D claims
144 76% vs specialty avg
MIPS final score
58.5/100 24.6 pts vs avg
Specialty distribution in Wyoming
How Occupational Medicine Physician compares to other specialties among Wyoming providers
Medicare quality performance, MIPS
Diane Wrenn, ARNP, FNP-C's 2023 MIPS final score plotted against the Occupational Medicine Physician national average
- MIPS Final Score
- 58.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Occupational Medicine Physician) - 58.5/100 vs national avg 83.1
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).
Diane Wrenn, ARNP, FNP-C appears in the CMS NPPES registry as a Occupational Medicine Physician provider holding ARNP, FNP-C credentials at 902 N HIGLEY BLVD, Rawlins, WY, 82301, with a listed phone of (307) 324-3723. NPI 1255403457 was issued on 11/14/2006.
Medicare Part D records for calendar year 2023 show 144 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $11K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 58.5/100 for the 2023 performance year (Quality 47.8, Cost 57.4), compared with the national average of 83.1.
Occupational Medicine Physician is a narrow specialty nationwide, with 2,230 enrolled providers across 52 states and an average of 605 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 | 1255403457 |
|---|---|
| Specialty | Occupational Medicine Physician |
| Credentials | ARNP, FNP-C |
| Gender | Female |
| NPI Issued | 11/14/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
58.5048
Final Score
Avg: 83.1
47.7793
Quality
57.4204
Cost
Reporting: Group practice
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
144
Total Claims
$11K
Total Drug Cost
37
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 312
- Total Day Supply
- 9,260
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 0.97
- Gender Split
- 57% female / 43% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Occupational Medicine Physician Overview
How Diane Wrenn, ARNP, FNP-C fits within the Occupational Medicine Physician landscape nationally.
2,230
Occupational Medicine Physician Providers in US
52
States with Occupational Medicine Physician
605
Avg Claims per Provider
Diane Wrenn, ARNP, FNP-C's 144 claims are below the specialty average of 605.
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 Occupational Medicine Physician 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.
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Diane Wrenn, ARNP, FNP-C's specialty? ▼
Diane Wrenn, ARNP, FNP-C specializes in Occupational Medicine Physician and practices in Rawlins, Wyoming. Credentials: ARNP, FNP-C.
How much does Diane Wrenn, ARNP, FNP-C prescribe under Medicare Part D? ▼
In 2023, Diane Wrenn, ARNP, FNP-C wrote 144 Medicare Part D claims totaling $11K in drug costs for 37 beneficiaries.
What is Diane Wrenn, ARNP, FNP-C's Medicare quality score? ▼
Diane Wrenn, ARNP, FNP-C has a CMS MIPS Final Score of 58.5/100 (Quality: 47.8, Cost: 57.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Diane Wrenn, ARNP, FNP-C located? ▼
Diane Wrenn, ARNP, FNP-C is located at 902 N HIGLEY BLVD, Rawlins, WY, 82301. Phone: (307) 324-3723.
What is Diane Wrenn, ARNP, FNP-C's NPI number? ▼
Diane Wrenn, ARNP, FNP-C's National Provider Identifier (NPI) is 1255403457, issued on 11/14/2006.
How many Occupational Medicine Physician providers are there in the US? ▼
There are 2,230 Occupational Medicine Physician providers across 52 states in the US. The average Occupational Medicine Physician provider writes 605 Medicare Part D claims per year.
What drugs does Diane Wrenn, ARNP, FNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Diane Wrenn, ARNP, FNP-C's most frequently prescribed drugs include Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Diane Wrenn, ARNP, FNP-C accept Medicare? ▼
Diane Wrenn, ARNP, FNP-C appears in CMS Medicare data with 144 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Diane Wrenn, ARNP, FNP-C's credentials? ▼
Diane Wrenn, ARNP, FNP-C's NPI is 1255403457 with credentials ARNP, FNP-C. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.