NPI registry status
Active
2026 NPPES data Dermatopathology Physician NPI 1750515565 M.D.
Verify on CMS → Campbell Stewart, M.D.
Dermatopathology Physician in Farmington, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 570 in Dermatopathology 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
794
Medicare Part D claims · 197 beneficiaries · Dermatopathology Physician avg: 650
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$28.89
1 payments · CMS Open Payments (Sunshine Act)
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
Campbell Stewart, M.D. reported a CMS MIPS final score of 79.3/100 - below the 83.1 national average - and filed 794 Medicare Part D claims in 2023.
- 79.3/100
- MIPS score · -4 vs avg
- 794
- Part D claims, 2023
- 81%
- generic prescribing
- 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.
Campbell Stewart, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 30th percentile higher than 30% 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 Campbell Stewart, M.D. sits
This provider among dermatopathology physician peers
Across the 210 dermatopathology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Campbell Stewart, M.D. writes more Part D claims than 66% of them and scores higher on MIPS quality than 34% - placing this provider in the high-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 dermatopathology physician peer from a representative sample of 60; the gold marker is Campbell Stewart, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Campbell Stewart, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Campbell Stewart, M.D.?
Near national averagePrimary specialty
Dermatopathology Physician
Medicare Part D claims
794 22% vs specialty avg
MIPS final score
79.3/100 3.8 pts vs avg
Specialty distribution in Connecticut
How Dermatopathology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Campbell Stewart, M.D.'s 2023 MIPS final score plotted against the Dermatopathology Physician national average
- MIPS Final Score
- 79.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Dermatopathology Physician) - 79.3/100 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).
Campbell Stewart, M.D. appears in the CMS NPPES registry as a Dermatopathology Physician provider holding M.D. credentials at 21 SOUTH ROAD, Farmington, CT, 06032, with a listed phone of (860) 679-4600. NPI 1750515565 was issued on 05/07/2009.
Medicare Part D records for calendar year 2023 show 794 prescription claims written by this provider, covering 197 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 19% brand-name and 81% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3/100 for the 2023 performance year (Quality 69.2, Cost 48.1), compared with the national average of 83.1.
Dermatopathology Physician is a narrow specialty nationwide, with 570 enrolled providers across 48 states and an average of 650 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 | 1750515565 |
|---|---|
| Specialty | Dermatopathology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/07/2009 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.3496
Final Score
Avg: 83.1
69.2231
Quality
48.0871
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Campbell Stewart, 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.
University OF Connecticut Health Center
Farmington, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Campbell Stewart, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$29
Largest payer
GENZYME CORPORATION
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Campbell Stewart, M.D. - brand share 19.0%
Dermatopathology Physician average
19% brand-name claims vs 81% generic, on 794 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.
794
Total Claims
$1.3M
Total Drug Cost
197
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 987
- Total Day Supply
- 26,962
- Brand vs Generic
- 19% brand / 81% generic
- Brand Drug Cost
- $1.3M
- Generic Drug Cost
- $37K
- Antibiotic Claims
- 19
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 26% female / 74% male
- Age Distribution
- <65: 25, 65-74: 86, 75-84: 68, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Campbell Stewart, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ketoconazole
Ketoconazole
191 claims
- Triamcinolone Acet… 63
Triamcinolone Acetonide
63 claims
- Clobetasol Propion… 62
Clobetasol Propionate
62 claims
- Dupixent Syringe 41
Dupixent Syringe
41 claims
- Stelara 33
Stelara
33 claims
- Tacrolimus 32
Tacrolimus
32 claims
- Dupixent Pen 30
Dupixent Pen
30 claims
- Hydrocortisone 26
Hydrocortisone
26 claims
| Drug | Claims |
|---|---|
| Ketoconazole | 191 |
| Triamcinolone Acetonide | 63 |
| Clobetasol Propionate | 62 |
| Dupixent Syringe Dupilumab | 41 |
| Stelara Ustekinumab | 33 |
| Tacrolimus | 32 |
| Dupixent Pen Dupilumab | 30 |
| Hydrocortisone | 26 |
| Mupirocin | 26 |
| Clindamycin Phosphate | 21 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatopathology Physician Overview
How Campbell Stewart, M.D. fits within the Dermatopathology Physician landscape nationally.
570
Dermatopathology Physician Providers in US
48
States with Dermatopathology Physician
650
Avg Claims per Provider
Campbell Stewart, M.D.'s 794 claims are above the specialty average of 650.
Nearby Dermatopathology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Stewart.
Dr. Grace Bandow
M.D.
Shelton, CT
Dr. Adrienne Berke
MD
Farmington, CT
Dr. Katalin Ferenczi
M.D.
Farmington, CT
Dr. Steven Gaudio
M.D.
Old Saybrook, CT
Dr. Arni Kristjansson
M.D.
Farmington, CT
Compare Dermatopathology Physician 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Dermatopathology 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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Frequently Asked Questions
What is Campbell Stewart, M.D.'s specialty? ▼
Campbell Stewart, M.D. specializes in Dermatopathology Physician and practices in Farmington, Connecticut. Credentials: M.D..
How much does Campbell Stewart, M.D. prescribe under Medicare Part D? ▼
In 2023, Campbell Stewart, M.D. wrote 794 Medicare Part D claims totaling $1.3M in drug costs for 197 beneficiaries.
What is Campbell Stewart, M.D.'s Medicare quality score? ▼
Campbell Stewart, M.D. has a CMS MIPS Final Score of 79.3/100 (Quality: 69.2, Cost: 48.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Campbell Stewart, M.D. located? ▼
Campbell Stewart, M.D. is located at 21 SOUTH ROAD, Farmington, CT, 06032. Phone: (860) 679-4600.
What is Campbell Stewart, M.D.'s NPI number? ▼
Campbell Stewart, M.D.'s National Provider Identifier (NPI) is 1750515565, issued on 05/07/2009.
Does Campbell Stewart, M.D. prescribe more brand-name or generic drugs? ▼
Campbell Stewart, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $1.3M in brand drug costs.
How many Dermatopathology Physician providers are there in the US? ▼
There are 570 Dermatopathology Physician providers across 48 states in the US. The average Dermatopathology Physician provider writes 650 Medicare Part D claims per year.
What drugs does Campbell Stewart, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Campbell Stewart, M.D.'s most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Campbell Stewart, M.D. accept Medicare? ▼
Campbell Stewart, M.D. appears in CMS Medicare data with 794 Part D claims and 197 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Campbell Stewart, M.D.'s credentials? ▼
Campbell Stewart, M.D.'s NPI is 1750515565 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
Compiled from official public sources by the PlainDoctor editorial team.