NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1003342775 M.D.
Verify on CMS → Merrick Kozak, M.D.
Student in an Organized Health Care Education/Training Program in Charlottesville, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 331,274 in Student in an Organized Health Care Education/Training Program, 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
506
Medicare Part D claims · 186 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.5/100
▲ 3 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Merrick Kozak, M.D. reported a CMS MIPS final score of 86.5/100 - above the 83.5 national average - and filed 506 Medicare Part D claims in 2023.
- 86.5/100
- MIPS score · +3 vs avg
- 506
- Part D claims, 2023
- 92%
- generic prescribing
- ≥49th
- pct among measured MIPS (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1003342775 · Student in an Organized Health Care Education/Training Program
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1003342775
- ENUM-RECENT 2017
- TAX-MEGA 331K Student in
- MIPS-ABOVE 86.5/100
- RX-LIGHT 506
- BOOK-MID 6,739 in Virginia
- PHOTO-FINISH Patrick Carr · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Kozak · this pro…
Kozak · this provider
86.5 MIPS pts
- Kathryn Kauffman…
Kathryn Kauffman
86.5 MIPS pts
- Patrick Carr · n…
Patrick Carr
86.5 MIPS pts
- Ryan Cusic · near
Ryan Cusic
86.5 MIPS pts
- Michelle Green H…
Michelle Green Hightower
86.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Merrick Kozak, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
87 ≥ 49th percentile 49% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Merrick Kozak, M.D. sits
This provider among student in an organized health care education/training program peers
Across the 12,177 student in an organized health care education/training program providers who report both Medicare Part D prescribing and a MIPS quality score, Merrick Kozak, M.D. writes more Part D claims than 68% of them and scores higher on MIPS quality than 48% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one student in an organized health care education/training program peer from a representative sample of 60; the gold marker is Merrick Kozak, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Merrick Kozak, M.D.?
High performer (top quartile)Primary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
506 10% vs specialty avg
MIPS final score
86.5/100 3 pts vs avg
Specialty distribution in Virginia
How Student in an Organized Health Care Education/Training Program compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Merrick Kozak, M.D.'s 2023 MIPS final score plotted against the Student in an Organized Health Care Education/Training Program national average
- MIPS Final Score
- 86.5/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1003342775 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/02/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.514
Final Score
Measured-score avg: 83.5
73.0279
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where Merrick Kozak, M.D. 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.
Shenandoah Dermatology, P.C..
Staunton, VA
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 · Generic-heavy
Merrick Kozak, M.D. - brand share 8.0%
Student in an Organized Health Care Education/Training Program average
8% brand-name claims vs 92% generic, on 506 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.
506
Total Claims
$243K
Total Drug Cost
186
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 550
- Total Day Supply
- 14,679
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $228K
- Generic Drug Cost
- $15K
- Antibiotic Claims
- 24
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.14
- Gender Split
- 40% female / 60% male
- Age Distribution
- <65: 25, 65-74: 80, 75-84: 59, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Merrick Kozak, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Triamcinolone Acet…
Triamcinolone Acetonide
96 claims
- Selenium Sulfide
Selenium Sulfide
87 claims
- Clobetasol Propion…
Clobetasol Propionate
75 claims
- Doxycycline Hyclate 35
Doxycycline Hyclate
35 claims
- Mupirocin 32
Mupirocin
32 claims
- Ketoconazole 26
Ketoconazole
26 claims
- Dupixent Pen 23
Dupixent Pen
23 claims
- Hydrocortisone 12
Hydrocortisone
12 claims
| Drug | Claims |
|---|---|
| Triamcinolone Acetonide | 96 |
| Selenium Sulfide | 87 |
| Clobetasol Propionate | 75 |
| Doxycycline Hyclate | 35 |
| Mupirocin | 32 |
| Ketoconazole | 26 |
| Dupixent Pen Dupilumab | 23 |
| Hydrocortisone | 12 |
| Hydroxychloroquine Sulfate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in VA →
All providers in Virginia →
Compare specialties →
Student in an Organized Health Care Education/Training Program Overview
How Merrick Kozak, M.D. fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
331,274
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider
Merrick Kozak, M.D.'s 506 claims are above the specialty average of 459.
Nationwide Student in an Organized Health Care Education/Training Program peers with similar MIPS or enrollment year
Two federal-record peer sets for Kozak, both outside Virginia so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (86.5 here).
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Student in an Organized Health Care Education/Training Program Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Kozak.
One of 6,739 Student in an Organized Health Care Education/Training Program providers enrolled in Virginia, 5 are shown here.
Frequently Asked Questions
What is Merrick Kozak, M.D.'s specialty? ▼
Merrick Kozak, M.D. specializes in Student in an Organized Health Care Education/Training Program and practices in Charlottesville, Virginia. Credentials: M.D..
How much does Merrick Kozak, M.D. prescribe under Medicare Part D? ▼
In 2023, Merrick Kozak, M.D. wrote 506 Medicare Part D claims totaling $243K in drug costs for 186 beneficiaries.
What is Merrick Kozak, M.D.'s Medicare quality score? ▼
Merrick Kozak, M.D. has a CMS MIPS Final Score of 86.5/100 (Quality: 73). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Merrick Kozak, M.D. located? ▼
Merrick Kozak, M.D. is located at 1221 LEE ST, Charlottesville, VA, 22908. Phone: (434) 924-5115.
What is Merrick Kozak, M.D.'s NPI number? ▼
Merrick Kozak, M.D.'s National Provider Identifier (NPI) is 1003342775, issued on 05/02/2017.
Does Merrick Kozak, M.D. prescribe more brand-name or generic drugs? ▼
Merrick Kozak, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $228K in brand drug costs.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 331,274 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does Merrick Kozak, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Merrick Kozak, M.D.'s most frequently prescribed drugs include Triamcinolone Acetonide, Selenium Sulfide, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Merrick Kozak, M.D. accept Medicare? ▼
Merrick Kozak, M.D. appears in CMS Medicare data with 506 Part D claims and 186 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Merrick Kozak, M.D.'s credentials? ▼
Merrick Kozak, M.D.'s NPI is 1003342775 with credentials M.D.. 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
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.