GREGORY CLARK, APN
Registered Nurse in FORT COLLINS, Colorado. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
GREGORY CLARK, APN reported a CMS MIPS final score of 97.5814/100 — above the 83.1 national average — and filed 655 Medicare Part D claims in 2023.
- 97.5814/100
- MIPS score · +14 vs avg
- 655
- 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.
GREGORY CLARK, APN's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
98 Top 15% higher than 85% 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
What does the federal data show about GREGORY CLARK, APN?
High performer (top quartile)Primary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Colorado
How Registered Nurse compares to other specialties among Colorado providers
Registered Nurse share within Colorado
Registered Nurse is one of the more visible NUCC categories in Colorado
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
GREGORY CLARK, APN's 2023 MIPS final score plotted against the Registered Nurse national average
- MIPS Final Score
- 97.5814/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Registered Nurse) — 97.5814/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Specialty volume Registered Nurse US NPIs
97.5814/100 MIPS final score — 14.5 pts above the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Registered Nurse. Quality dim: 86.5348.
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).
GREGORY CLARK, APN appears in the CMS NPPES registry as a Registered Nurse provider holding APN credentials at 4674 SNOW MESA DR STE 100, FORT COLLINS, CO, 80528, with a listed phone of (970) 482-3712. NPI 1497322408 was issued on 06/08/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARK 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 655 prescription claims written by this provider, covering 124 Medicare beneficiaries and totaling roughly $95K in drug spend, with an opioid prescribing rate of 2.6%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.5814/100 for the 2023 performance year (Quality 86.5348), compared with the national average of 83.1.
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
Provider Details
| NPI | 1497322408 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | APN |
| Gender | Male |
| NPI Issued | 06/08/2021 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm GREGORY CLARK, APN's current license status, disciplinary history, and board certifications with the Colorado Medical Board in Colorado before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where GREGORY CLARK, APN 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.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 1,349
- Total Day Supply
- 38,555
- Generic Drug Cost
- $17K
- Opioid Claims
- 17 (2.6% rate)
Patient Demographics
- Average Patient Age
- 65.0 years
- Avg HCC Risk Score
- 1.45
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 42, 65-74: 58, 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.
What GREGORY CLARK, APN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
45 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
27 claims
- Omeprazole
Omeprazole
20 claims
- Ventolin Hfa
Ventolin Hfa
19 claims
- Levothyroxine Sodium 16
Levothyroxine Sodium
16 claims
- Losartan Potassium 16
Losartan Potassium
16 claims
- Ibuprofen 15
Ibuprofen
15 claims
- Lidocaine 15
Lidocaine
15 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 45 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 27 |
| Omeprazole | 20 |
| Ventolin Hfa Albuterol Sulfate | 19 |
| Levothyroxine Sodium | 16 |
| Losartan Potassium | 16 |
| Ibuprofen | 15 |
| Lidocaine | 15 |
| Metformin Hcl | 15 |
| Paroxetine Hcl | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How GREGORY CLARK, APN fits within the Registered Nurse landscape nationally.
GREGORY CLARK, APN's 655 claims are below the specialty average of 1,000.
Nearby Registered Nurse Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as CLARK.
Compare Registered Nurse nationally: see state-by-state distribution →
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Frequently Asked Questions
What is GREGORY CLARK, APN's specialty? ▼
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What is GREGORY CLARK, APN's NPI number? ▼
Does GREGORY CLARK, APN prescribe opioids? ▼
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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.
- 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