NPI registry status
Active
2026 NPPES data Neurology with Special Qualifications in Child Neurology Physician NPI 1023129145 MD
Verify on CMS → Leonard Elkun, MD
Neurology with Special Qualifications in Child Neurology Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,803 in Neurology with Special Qualifications in Child Neurology 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
389
Medicare Part D claims · 38 beneficiaries · Neurology with Special Qualifications in Child Neurology Physician avg: 359
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Leonard Elkun, MD filed 389 Medicare Part D claims in 2023 as a Neurology with Special Qualifications in Child Neurology Physician in Chicago, Illinois.
- 389
- Part D claims, 2023
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.
Leonard Elkun, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
389 Top 43% higher than 57% 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
◑
Board-eligible specialty (heuristic, not verified)
Leonard Elkun, MD 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 Leonard Elkun, MD?
Quality data not reportedPrimary specialty
Neurology with Special Qualifications in Child Neurology Physician
Medicare Part D claims
389 8% vs specialty avg
Specialty distribution in Illinois
How Neurology with Special Qualifications in Child Neurology Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Neurology with Special Qualifications in Child Neurology Physician. Verify directly:
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).
Leonard Elkun, MD appears in the CMS NPPES registry as a Neurology with Special Qualifications in Child Neurology Physician provider holding MD credentials at 411 W. ONTARIO ST, Chicago, IL, 60610, with a listed phone of (312) 943-8322. NPI 1023129145 was issued on 08/31/2006.
Medicare Part D records for calendar year 2023 show 389 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $8K in drug spend, with an opioid prescribing rate of 3.1%.
Neurology with Special Qualifications in Child Neurology Physician is a narrow specialty nationwide, with 1,803 enrolled providers across 51 states and an average of 359 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 | 1023129145 |
|---|---|
| Specialty | Neurology with Special Qualifications in Child Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/31/2006 |
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Leonard Elkun, MD. To verify Leonard Elkun, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
389
Total Claims
$8K
Total Drug Cost
38
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 519
- Total Day Supply
- 15,403
- Generic Drug Cost
- $7K
- Opioid Claims
- 12 (3.1% rate)
Patient Demographics
- Average Patient Age
- 64.1 years
- Avg HCC Risk Score
- 1.04
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 22, 65-74: N/A, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Leonard Elkun, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Zolpidem Tartrate
Zolpidem Tartrate
78 claims
- Lorazepam
Lorazepam
54 claims
- Escitalopram Oxalate
Escitalopram Oxalate
48 claims
- Clonazepam
Clonazepam
35 claims
- Duloxetine Hcl 25
Duloxetine Hcl
25 claims
- Trazodone Hcl 19
Trazodone Hcl
19 claims
- Citalopram Hbr 18
Citalopram Hbr
18 claims
- Bupropion Xl 14
Bupropion Xl
14 claims
| Drug | Claims |
|---|---|
| Zolpidem Tartrate | 78 |
| Lorazepam | 54 |
| Escitalopram Oxalate | 48 |
| Clonazepam | 35 |
| Duloxetine Hcl | 25 |
| Trazodone Hcl | 19 |
| Citalopram Hbr Citalopram Hydrobromide | 18 |
| Bupropion Xl Bupropion Hcl | 14 |
| Butalb-Acetaminoph-Caff-Codein Butalbit/Acetamin/Caff/Codeine | 12 |
| Diazepam | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Neurology with Special Qualifications in Child Neurology Physician in IL →
All providers in Illinois →
Compare specialties →
Neurology with Special Qualifications in Child Neurology Physician Overview
How Leonard Elkun, MD fits within the Neurology with Special Qualifications in Child Neurology Physician landscape nationally.
1,803
Neurology with Special Qualifications in Child Neurology Physician Providers in US
51
States with Neurology with Special Qualifications in Child Neurology Physician
359
Avg Claims per Provider
Leonard Elkun, MD's 389 claims are above the specialty average of 359.
Nearby Neurology with Special Qualifications in Child Neurology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Elkun.
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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology with Special Qualifications in Child Neurology 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 Leonard Elkun, MD's specialty? ▼
Leonard Elkun, MD specializes in Neurology with Special Qualifications in Child Neurology Physician and practices in Chicago, Illinois. Credentials: MD.
How much does Leonard Elkun, MD prescribe under Medicare Part D? ▼
In 2023, Leonard Elkun, MD wrote 389 Medicare Part D claims totaling $8K in drug costs for 38 beneficiaries.
Where is Leonard Elkun, MD located? ▼
Leonard Elkun, MD is located at 411 W. ONTARIO ST, Chicago, IL, 60610. Phone: (312) 943-8322.
What is Leonard Elkun, MD's NPI number? ▼
Leonard Elkun, MD's National Provider Identifier (NPI) is 1023129145, issued on 08/31/2006.
Does Leonard Elkun, MD prescribe opioids? ▼
Yes, Leonard Elkun, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Neurology with Special Qualifications in Child Neurology Physician providers are there in the US? ▼
There are 1,803 Neurology with Special Qualifications in Child Neurology Physician providers across 51 states in the US. The average Neurology with Special Qualifications in Child Neurology Physician provider writes 359 Medicare Part D claims per year.
What drugs does Leonard Elkun, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Leonard Elkun, MD's most frequently prescribed drugs include Zolpidem Tartrate, Lorazepam, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Leonard Elkun, MD accept Medicare? ▼
Leonard Elkun, MD appears in CMS Medicare data with 389 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Leonard Elkun, MD's credentials? ▼
Leonard Elkun, MD's NPI is 1023129145 with credentials MD. 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.
- 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.