Leonard Dubin, M.D.
NPI 1518976737 · Internal Medicine Physician · Melrose Park, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Dubin, M.D. is a Internal Medicine Physician provider in Melrose Park, IL (NPI 1518976737).
Provider details
- NPI number
- 1518976737
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-104972 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,785 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 387 | $132 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 317 | $17 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 316 | $65 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 141 | $132 |
| Chronic Care Management Services for Two Or More Chronic Conditions, First 30 Minutes Provided Personally By Health Care Professional, Per Calendar Month99491 | 130 | $87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 152 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 450 | 134 |
| Metformin Hcl | 320 | 93 |
| Levothyroxine Sodium | 315 | 83 |
| Rosuvastatin Calcium | 307 | 93 |
| Gabapentin | 287 | 100 |
| Omeprazole | 261 | 86 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3340 Dundee Rd Ste 2n2Northbrook, IL 60062-2332Phone: (847) 454-0301
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2025-04-17
- Certified
- 2025-04-17
Frequently asked questions
- What is Leonard Dubin's NPI number?
- Leonard Dubin's National Provider Identifier (NPI) is 1518976737, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Dubin's specialty?
- Leonard Dubin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Dubin located?
- Leonard Dubin's practice location on file with NPPES is 675 W North Ave, Melrose Park, IL 60160-1634.
- What is Leonard Dubin's phone number?
- The practice phone number listed in the NPPES registry for Leonard Dubin is (708) 632-5566.
- Does Leonard Dubin accept Medicare?
- Leonard Dubin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Dubin's NPI active?
- Yes — Leonard Dubin's NPI (1518976737) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.