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LEONARD DAVID ELKUN MD
NPI 1023129145
Psychiatry & Neurology - Geriatric Psychiatry in Chicago, IL

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment
411 W. ONTARIO ST, SUITE 402, CHICAGO, IL 60610(312) 943-8322(312) 843-8323 Get Directions Write a Review

NPPES record last updated: April 24, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Leonard David Elkun Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LEONARD DAVID ELKUN MD (NPI 1023129145) is an individual geriatric psychiatry provider in Chicago, Illinois, licensed in Illinois (036-041170) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1965).

NPPES Registry Identity

NPI1023129145
Entity TypeIndividualMale
Primary Taxonomy2084P0805X
Provider Legal NameLEONARD DAVID ELKUNCredential: MD
Location Address411 W. ONTARIO ST, SUITE 402Chicago, IL 60610-6945
Mailing Address411 W. Ontario St, Suite 402Chicago, IL 60610-6945 · (312) 943-8322 · Fax (312) 843-8323
Phone(312) 943-8322
Fax(312) 843-8323
Sole ProprietorYes
Medical School CMSOtherGraduated 1965
Enumeration DateAugust 31, 2006
Last NPPES UpdateApril 24, 2021
NPPES CertifiedApril 24, 2021
✔ NPI 1023129145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Geriatric PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0805X
License✔ Licensed in IL · 036-041170
Definition
Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.
Also ListedPsychiatry & Neurology · Neurology with Special Qualifications in Child NeurologyTaxonomy 2084N0402X · License 036-041170 (IL)
411 W. ONTARIO ST, Chicago, IL 60610
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leonard David Elkun Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6901967454
PECOS Enrollment IDI20081203000264
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
1,073 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60610 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Leonard Elkun's NPI number?

The NPI number for Leonard Elkun is 1023129145. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Leonard Elkun located?

Leonard Elkun practices at 411 W. Ontario St Suite 402, Chicago, IL 60610. The listed phone number is (312) 943-8322.

What is Leonard Elkun's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Is Leonard Elkun enrolled in Medicare?

Yes. Leonard Elkun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Leonard Elkun was last updated on April 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.