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2026 NPPES data Specialist NPI 1679631014 M.D.
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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 69,567 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
604
Medicare Part D claims · 262 beneficiaries · Specialist avg: 2K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
67.1/100
▼ 16 pts below national avg 83.5 · Mid-tier
Industry payments
$24.4K
70 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Steven Leibowitz, M.D. reported a CMS MIPS final score of 67.1/100 - below the 83.5 national average - and filed 604 Medicare Part D claims in 2024.

67.1/100
MIPS score · -16 vs avg
604
Part D claims, 2024
70%
generic prescribing
$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.

Federal trust snapshot

What official records show about Steven Leibowitz, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1679631014), first enumerated 12/05/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 604 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 67.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Industry payment transparency

    $24.4K in reported industry payments (70 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1679631014 · Specialist

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1679631014
  • ENUM-LEGACY 2006
  • TAX-MEGA 70K Specialist
  • MIPS-LOW 67.1/100
  • RX-LIGHT 604
  • BOOK-THIN 329 in Nevada
  • PHOTO-FINISH Max Benjamin, M.D · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Steven Leibowitz, 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.

67 ≥ 8th percentile 8% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

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 Steven Leibowitz, M.D. sits

This provider among specialist peers

Across the 4,261 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Steven Leibowitz, M.D. writes more Part D claims than 43% of them and scores higher on MIPS quality than 20% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 0Steven Leibowitz, M.D., Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 20
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 average

NPI registry status

Active

Issued 12/05/2006

NPI 1679631014

Primary specialty

Specialist

High-volume

69,567 US NPIs in this specialty

Medicare Part D claims

604 60% vs specialty avg

2024 prescription claims

Specialty avg: 1,524

MIPS final score

67.1/100 16.4 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Nevada

How Specialist compares to other specialties among Nevada providers

Nevada providers
Personal Care Attendant25.7%Behavior Technician6.4%Rehabilitation Practitioner5.4%Behavior Analyst4.6%Chore Provider4.4%Student in an Organized Heal…2.6%Specialist0.3%
Largest specialties in Nevada (% of in-state providers)

Medicare quality performance, MIPS

Steven Leibowitz, M.D.'s 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
67.1/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%67.1%
MIPS final score (Specialist) - 67.1/100 vs national avg 83.5
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

653 N TOWN CENTER DR STE 102
Las Vegas, NV 89144
(702) 242-5555

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
Measured-score avg: 83.5
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.

Brand vs generic prescribing mix · Above average

Steven Leibowitz, M.D. - brand share 30.0%
Specialist average

30% brand-name claims vs 70% generic, on 604 2024 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 2024.

604
Total Claims
$80K
Total Drug Cost
262
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
830.633
Total Day Supply
17,499
Brand vs Generic
30% brand / 70% generic
Brand Drug Cost
$68K
Generic Drug Cost
$12K

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.26
Gender Split
54% female / 46% male
Age Distribution
<65: 12, 65-74: 126, 75-84: 98, 85+: 26

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Steven Leibowitz, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Erythromycin
Erythromycin Base
210
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
199
Latanoprost
 62
Xiidra
Lifitegrast
25
Restasis
Cyclosporine
21
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
11
Timolol Maleate
 11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Specialist in NV → All providers in Nevada → Compare specialties →

Specialist Overview

How Steven Leibowitz, M.D. fits within the Specialist landscape nationally.

69,567
Specialist Providers in US
55
States with Specialist
1,524
Avg Claims per Provider

Steven Leibowitz, M.D.'s 604 claims are below the specialty average of 1,524.

Nationwide Specialist peers with similar MIPS or enrollment year

Two federal-record peer sets for Leibowitz, both outside Nevada so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (67.1 here).

Jordan Youngerman 67.2 IL Arup Maitra 67.2 OH Max Benjamin 67.1 FL Azita Taghavy 67 CA

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Kim Kelley Minnetonka, MN Matthew Bouchie Manchester, NH Marjorie Goudreault Manchester, NH Jodi Negrete Olympia, WA

Nearby Specialist Providers in Nevada

Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Leibowitz.

One of 329 Specialist providers enrolled in Nevada, 5 are shown here.

Dr. Karen Abbott
MD
Reno, NV
Dr. Gary Abrass
M.D.
Reno, NV
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 →

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 2024, Steven Leibowitz, M.D. wrote 604 Medicare Part D claims totaling $80K in drug costs for 262 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 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 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.
Does Steven Leibowitz, M.D. prescribe more brand-name or generic drugs? ▼
Steven Leibowitz, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $68K in brand drug costs.
How many Specialist providers are there in the US? ▼
There are 69,567 Specialist providers across 55 states in the US. The average Specialist provider writes 1,524 Medicare Part D claims per year.
What drugs does Steven Leibowitz, M.D. prescribe most often? ▼
Based on 2024 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 604 Part D claims and 262 Medicare beneficiaries in 2024. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 editorial process.

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 August 2026.