NPI registry status
Active
2026 NPPES data Specialist NPI 1679631014 M.D.
Verify on CMS → Steven Leibowitz, M.D.
Specialist in Las Vegas, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 69,608 in Specialist, 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
832
Medicare Part D claims · 334 beneficiaries · Specialist avg: 1K
MIPS score
67.1/100
▼ 16 pts below national avg 83.1 · Mid-tier
Industry payments
$24.4K
70 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Steven Leibowitz, M.D. reported a CMS MIPS final score of 67.1/100 - below the 83.1 national average - and filed 832 Medicare Part D claims in 2023.
- 67.1/100
- MIPS score · -16 vs avg
- 832
- Part D claims, 2023
- $24.4K
- 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.
Steven Leibowitz, 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
67 7th percentile higher than 7% 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 Steven Leibowitz, M.D. sits
This provider among specialist peers
Across the 4,869 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Steven Leibowitz, M.D. writes more Part D claims than 49% of them and scores higher on MIPS quality than 18% - placing this provider in the lower-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 specialist peer from a representative sample of 60; the gold marker is Steven Leibowitz, 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 Steven Leibowitz, M.D.?
Below national averagePrimary specialty
Specialist
Medicare Part D claims
832 44% vs specialty avg
MIPS final score
67.1/100 16 pts vs avg
Specialty distribution in Nevada
How Specialist compares to other specialties among Nevada providers
Medicare quality performance, MIPS
Steven Leibowitz, M.D.'s 2023 MIPS final score plotted against the Specialist national average
- MIPS Final Score
- 67.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Specialist) - 67.1/100 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).
Steven Leibowitz, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 653 N TOWN CENTER DR STE 102, Las Vegas, NV, 89144, with a listed phone of (702) 242-5555. NPI 1679631014 was issued on 12/05/2006.
Medicare Part D records for calendar year 2023 show 832 prescription claims written by this provider, covering 334 Medicare beneficiaries and totaling roughly $377K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 67.1/100 for the 2023 performance year (Quality 65.6, Cost 36.4), compared with the national average of 83.1.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1679631014 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 12/05/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
67.1493
Final Score
Avg: 83.1
65.5762
Quality
36.396
Cost
Reporting: Individual
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 Steven Leibowitz, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$24.4K
Largest payer
Amgen 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
832
Total Claims
$377K
Total Drug Cost
334
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,091
- Total Day Supply
- 22,264
- Generic Drug Cost
- $22K
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Steven Leibowitz, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Erythromycin
Erythromycin
278 claims
- Tobramycin-Dexamet…
Tobramycin-Dexamethasone
261 claims
- Latanoprost 108
Latanoprost
108 claims
- Restasis 29
Restasis
29 claims
- Ciprofloxacin Hcl 18
Ciprofloxacin Hcl
18 claims
- Prednisolone Acetate 18
Prednisolone Acetate
18 claims
- Dorzolamide-Timolol 17
Dorzolamide-Timolol
17 claims
- Ketorolac Trometha… 15
Ketorolac Tromethamine
15 claims
| Drug | Claims |
|---|---|
| Erythromycin Erythromycin Base | 278 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 261 |
| Latanoprost | 108 |
| Restasis Cyclosporine | 29 |
| Ciprofloxacin Hcl | 18 |
| Prednisolone Acetate | 18 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 17 |
| Ketorolac Tromethamine | 15 |
| Timolol Maleate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Steven Leibowitz, M.D. fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Steven Leibowitz, M.D.'s 832 claims are below the specialty average of 1,474.
Nearby Specialist Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Leibowitz.
Dr. Karen Abbott
MD
Reno, NV
Dr. Gary Abrass
M.D.
Reno, NV
Dr. George Addison
M.S. ED.
Las Vegas, NV
Dr. Miriam Adelson
M.D.
Las Vegas, NV
Dr. Paparao Adusumilli
M.D.
Nellis Afb, NV
Compare Specialist 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 Nevada medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Specialist 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
Telehealth Guide
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Frequently Asked Questions
What is Steven Leibowitz, M.D.'s specialty? ▼
Steven Leibowitz, M.D. specializes in Specialist and practices in Las Vegas, Nevada. Credentials: M.D..
How much does Steven Leibowitz, M.D. prescribe under Medicare Part D? ▼
In 2023, Steven Leibowitz, M.D. wrote 832 Medicare Part D claims totaling $377K in drug costs for 334 beneficiaries.
What is Steven Leibowitz, M.D.'s Medicare quality score? ▼
Steven Leibowitz, M.D. has a CMS MIPS Final Score of 67.1/100 (Quality: 65.6, Cost: 36.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Steven Leibowitz, M.D. located? ▼
Steven Leibowitz, M.D. is located at 653 N TOWN CENTER DR STE 102, Las Vegas, NV, 89144. Phone: (702) 242-5555.
What is Steven Leibowitz, M.D.'s NPI number? ▼
Steven Leibowitz, M.D.'s National Provider Identifier (NPI) is 1679631014, issued on 12/05/2006.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Steven Leibowitz, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Steven Leibowitz, M.D.'s most frequently prescribed drugs include Erythromycin, Tobramycin-Dexamethasone, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Steven Leibowitz, M.D. accept Medicare? ▼
Steven Leibowitz, M.D. appears in CMS Medicare data with 832 Part D claims and 334 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Steven Leibowitz, M.D.'s credentials? ▼
Steven Leibowitz, M.D.'s NPI is 1679631014 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.
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.