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LEONARD DUBIN MD LLC
NPI 1558667451
Internal Medicine in Melrose Park, IL

Active since February 10, 2011
675 W NORTH AVE STE 401, MELROSE PARK, IL 60160(708) 632-5566 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Leonard Dubin Md Llc NPPES

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

LEONARD DUBIN MD LLC (NPI 1558667451) is a healthcare organization registered as an internal medicine in Melrose Park, Illinois and active in the NPI registry since February 2011. The organization maintains a secondary practice location in Northbrook and lists Leonard Dubin, Member, as its authorized official.

NPPES Registry Identity

NPI1558667451
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameLEONARD DUBIN MD LLC
Location Address675 W NORTH AVE STE 401Melrose Park, IL 60160-1624
Mailing Address675 W North Ave Ste 401Melrose Park, IL 60160-1624 · (708) 632-5566
Phone(708) 632-5566
Organization SubpartNo
Authorized OfficialLeonard DubinMember · (708) 632-5566
Enumeration DateFebruary 10, 2011
Last NPPES UpdateApril 17, 2025
NPPES CertifiedApril 17, 2025
✔ NPI 1558667451 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036104972
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
675 W NORTH AVE STE 401, Melrose Park, IL 60160
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Secondary Practice Location 1

Location 13340 Dundee Rd Ste 2N2Northbrook, IL 60062-2332 · Phone (847) 454-0301

Other Identifiers 1

Medicaid036104972IL

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Leonard Dubin Md Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Leonard Dubin MD LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Leonard Dubin, M.D.
Internal Medicine
NPI 1518976737
675 W NORTH AVE SUITE 401
Melrose Park, IL 60160
(708) 632-5566
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Dubin MD LLC's NPI number?

The NPI number for Leonard Dubin MD LLC is 1558667451. It was assigned to this organization in the NPPES registry on February 10, 2011.

Where is Leonard Dubin MD LLC located?

Leonard Dubin MD LLC is located at 675 W North Ave Ste 401, Melrose Park, IL 60160. The listed phone number is (708) 632-5566.

What is Leonard Dubin MD LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Leonard Dubin MD LLC enrolled in Medicare?

Yes. Leonard Dubin MD LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Leonard Dubin MD LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Leonard Dubin MD LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Leonard Dubin MD LLC accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Leonard Dubin MD LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Leonard Dubin MD LLC was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.