2026 NPPES data Registered Nurse NPI 1497322408 APN
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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.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
655
Medicare Part D claims · 124 beneficiaries · Registered Nurse avg: 1K
MIPS score
97.5814/100
▲ 14 pts above national avg 83.1 · [object Object]

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

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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)

NPI registry status

Active

Issued 06/08/2021

NPI 1497322408

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

655 34% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

MIPS final score

97.5814/100 14.481400000000008% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Colorado

How Registered Nurse compares to other specialties among Colorado providers

Colorado providers

Registered Nurse share within Colorado

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Colorado

Medicare quality performance — MIPS

GREGORY CLARK, APN's 2023 MIPS final score plotted against the Registered Nurse national average

High performer (top quartile)
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

0%100%National avg83%97.6%
MIPS final score (Registered Nurse) — 97.5814/100 vs national avg 83.1

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

4674 SNOW MESA DR STE 100
FORT COLLINS, CO 80528

Provider Details

NPI 1497322408
Specialty Registered Nurse
Credentials APN
Gender Male
NPI Issued 06/08/2021

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.5814
Final Score
Avg: 83.1
86.5348
Quality
100
Promoting Interoperability

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.

POUDRE VALLEY MEDICAL GROUP LLC
FORT COLLINS, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

655
Total Claims
$95K
Total Drug Cost
124
Medicare Beneficiaries

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

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 →

Frequently Asked Questions

What is GREGORY CLARK, APN's specialty?
GREGORY CLARK, APN specializes in Registered Nurse and practices in FORT COLLINS, Colorado. Credentials: APN.
How much does GREGORY CLARK, APN prescribe under Medicare Part D?
In 2023, GREGORY CLARK, APN wrote 655 Medicare Part D claims totaling $95K in drug costs for 124 beneficiaries.
What is GREGORY CLARK, APN's Medicare quality score?
GREGORY CLARK, APN has a CMS MIPS Final Score of 97.5814/100 (Quality: 86.5348). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GREGORY CLARK, APN located?
GREGORY CLARK, APN is located at 4674 SNOW MESA DR STE 100, FORT COLLINS, CO, 80528. Phone: (970) 482-3712.
What is GREGORY CLARK, APN's NPI number?
GREGORY CLARK, APN's National Provider Identifier (NPI) is 1497322408, issued on 06/08/2021.
Does GREGORY CLARK, APN prescribe opioids?
Yes, GREGORY CLARK, APN had 17 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does GREGORY CLARK, APN prescribe most often?
Based on 2023 Medicare Part D data, GREGORY CLARK, APN's most frequently prescribed drugs include Atorvastatin Calcium, Albuterol Sulfate Hfa, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGORY CLARK, APN accept Medicare?
GREGORY CLARK, APN appears in CMS Medicare data with 655 Part D claims and 124 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGORY CLARK, APN's credentials?
GREGORY CLARK, APN's NPI is 1497322408 with credentials APN. 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

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