ROBERT STEWART, M.D.
Psychiatry Physician in LOUISVILLE, Kentucky. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
ROBERT STEWART, M.D. filed 2,852 Medicare Part D claims in 2023 as a Psychiatry Physician in LOUISVILLE, Kentucky, prescribing 91% generic.
- 3K
- Part D claims, 2023
- 91%
- generic prescribing
- $73.6K
- industry payments (Sunshine Act)
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.
ROBERT STEWART, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
2,852 Top 12% higher than 88% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
ROBERT STEWART, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about ROBERT STEWART, M.D.?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Kentucky
How Psychiatry Physician compares to other specialties among Kentucky providers
Psychiatry Physician share within Kentucky
Psychiatry Physician is one of the more visible NUCC categories in Kentucky
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.
Specialty board-certification context
Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Psychiatry Physician ABMS/AOA estimate
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Psychiatry Physician US NPIs
Specialty board-certified rate — Psychiatry Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
ROBERT STEWART, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 7906 NEW LAGRANGE RD, LOUISVILLE, KY, 40222, with a listed phone of (502) 327-9233. NPI 1750423034 was issued on 02/13/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STEWART 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 2,852 prescription claims written by this provider, covering 195 Medicare beneficiaries and totaling roughly $465K in drug spend, split 9% brand-name and 91% generic by claim count. 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.
Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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 | 1750423034 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/13/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm ROBERT STEWART, M.D.'s current license status, disciplinary history, and board certifications with the Kentucky Board of Medical Licensure in Kentucky before relying on this page for a clinical or care decision.
How we sourced this profile
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 ROBERT STEWART, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$73.6K
Largest payer
ABBVIE INC.
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 · Generic-heavy
9% brand-name claims vs 91% generic, on 2,852 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.
Prescribing Breakdown
- 30-Day Fills
- 4,473
- Total Day Supply
- 131,443
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $378K
- Generic Drug Cost
- $86K
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 1.01
- Gender Split
- 77% female / 23% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What ROBERT STEWART, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clonazepam
Clonazepam
177 claims
- Lorazepam
Lorazepam
168 claims
- Duloxetine Hcl
Duloxetine Hcl
138 claims
- Alprazolam
Alprazolam
137 claims
- Lamotrigine
Lamotrigine
125 claims
- Gabapentin
Gabapentin
122 claims
- Trazodone Hcl
Trazodone Hcl
103 claims
- Zolpidem Tartrate
Zolpidem Tartrate
101 claims
| Drug | Claims |
|---|---|
| Clonazepam | 177 |
| Lorazepam | 168 |
| Duloxetine Hcl | 138 |
| Alprazolam | 137 |
| Lamotrigine | 125 |
| Gabapentin | 122 |
| Trazodone Hcl | 103 |
| Zolpidem Tartrate | 101 |
| Bupropion Hcl Sr Bupropion Hcl | 89 |
| Fluoxetine Hcl | 88 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How ROBERT STEWART, M.D. fits within the Psychiatry Physician landscape nationally.
ROBERT STEWART, M.D.'s 2,852 claims are above the specialty average of 1,038.
Nearby Psychiatry Physician Providers in Kentucky
Other clinicians with the same primary specialty enrolled in Kentucky, drawn from the same CMS NPPES roster as STEWART.
Compare Psychiatry Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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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.
- 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