NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1255944922 NP
Verify on CMS → Melissa Mathern, NP
Nurse Practitioner in Littleton, Colorado.
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
118
Medicare Part D claims · 30 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
88.2/100
▲ 5 pts above national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Melissa Mathern, NP reported a CMS MIPS final score of 88.2/100 - above the 83.1 national average - and filed 118 Medicare Part D claims in 2023.
- 88.2/100
- MIPS score · +5 vs avg
- 118
- Part D claims, 2023
- 83%
- generic prescribing
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.
Melissa Mathern, NP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
88 Top 44% higher than 56% 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 Melissa Mathern, NP sits
This provider among nurse practitioner peers
Across the 13,476 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Melissa Mathern, NP writes more Part D claims than 24% of them and scores higher on MIPS quality than 56% - placing this provider in the lower-volume, high-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 nurse practitioner peer from a representative sample of 60; the gold marker is Melissa Mathern, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Melissa Mathern, NP?
High performer (top quartile)Primary specialty
Nurse Practitioner
Medicare Part D claims
118 89% vs specialty avg
MIPS final score
88.2/100 5.1 pts vs avg
Specialty distribution in Colorado
How Nurse Practitioner compares to other specialties among Colorado providers
Medicare quality performance, MIPS
Melissa Mathern, NP's 2023 MIPS final score plotted against the Nurse Practitioner national average
- MIPS Final Score
- 88.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nurse Practitioner) - 88.2/100 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).
Melissa Mathern, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 7818 S HILL CIR, Littleton, CO, 80120, with a listed phone of (720) 425-2089. NPI 1255944922 was issued on 08/24/2020.
Medicare Part D records for calendar year 2023 show 118 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $14K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 31.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88.2/100 for the 2023 performance year (Quality 89), compared with the national average of 83.1.
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 | 1255944922 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 08/24/2020 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
88.2296
Final Score
Avg: 83.1
88.9629
Quality
81
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Melissa Mathern, 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.
Catholic Health Initiatives Colorado
Westminster, CO
Chi National Home Care, LLC
Centennial, CO
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 · Typical
Melissa Mathern, NP - brand share 17.0%
Nurse Practitioner average
17% brand-name claims vs 83% generic, on 118 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.
118
Total Claims
$14K
Total Drug Cost
30
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 132
- Total Day Supply
- 3,276
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $1K
- Opioid Claims
- 37 (31.4% rate)
Patient Demographics
- Average Patient Age
- 81.8 years
- Avg HCC Risk Score
- 3.32
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: 15, 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 |
|---|---|
| Gabapentin | 13 |
| Lorazepam | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Melissa Mathern, NP 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
Melissa Mathern, NP's 118 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Mathern.
Jennifer Abbey
Fountain, CO
Dr. Marie Abbinante
NP
Montrose, CO
Dr. Jenny Abernathy
FNP
Erie, CO
Dr. Emily Abernethy
NP
Arvada, CO
Dr. Kathleen Adams
DNP, FNP-C
Denver, CO
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 Colorado 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
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
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 Colorado
Frequently Asked Questions
What is Melissa Mathern, NP's specialty? ▼
Melissa Mathern, NP specializes in Nurse Practitioner and practices in Littleton, Colorado. Credentials: NP.
How much does Melissa Mathern, NP prescribe under Medicare Part D? ▼
In 2023, Melissa Mathern, NP wrote 118 Medicare Part D claims totaling $14K in drug costs for 30 beneficiaries.
What is Melissa Mathern, NP's Medicare quality score? ▼
Melissa Mathern, NP has a CMS MIPS Final Score of 88.2/100 (Quality: 89). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Melissa Mathern, NP located? ▼
Melissa Mathern, NP is located at 7818 S HILL CIR, Littleton, CO, 80120. Phone: (720) 425-2089.
What is Melissa Mathern, NP's NPI number? ▼
Melissa Mathern, NP's National Provider Identifier (NPI) is 1255944922, issued on 08/24/2020.
Does Melissa Mathern, NP prescribe more brand-name or generic drugs? ▼
Melissa Mathern, NP's prescribing is 17% brand-name and 83% generic drugs by claim count, with $12K in brand drug costs.
Does Melissa Mathern, NP prescribe opioids? ▼
Yes, Melissa Mathern, NP had 37 opioid claims in 2023 with an opioid prescribing rate of 31.4%.
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 Melissa Mathern, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Melissa Mathern, NP's most frequently prescribed drugs include Gabapentin, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Melissa Mathern, NP accept Medicare? ▼
Melissa Mathern, NP appears in CMS Medicare data with 118 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Melissa Mathern, NP's credentials? ▼
Melissa Mathern, NP's NPI is 1255944922 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
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.
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.