Leonid Ayzenberg, M.D
NPI 1164519526 · Ophthalmology Physician · Mount Prospect, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonid Ayzenberg, M.D is a Ophthalmology Physician provider in Mount Prospect, IL (NPI 1164519526).
Provider details
- NPI number
- 1164519526
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036095153 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,662 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Complete Exam of Visual System92014 | 539 | $127 |
| Photography of the Retina92250 | 425 | $37 |
| Exam of the Internal Drainage System of Eye92020 | 199 | $28 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 117 | $175 |
| Closure of Tear Duct Opening Using Plug68761 | 95 | $221 |
| Exam of Visual Field With Extended Testing92083 | 71 | $64 |
| Measurement of Corneal Curvature and Depth of Eye |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 577 | 94 |
| Timolol Maleate | 223 | 43 |
| Brimonidine Tartrate | 208 | 35 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 195 | 33 |
| Prednisolone Acetate | 106 | 60 |
| Ofloxacin | 93 | 53 |
| Bimatoprostbrand: Lumigan | 61 | — |
| Neomycin/Polymyxin B/Dexametha |
Practice location
Mailing address
Additional practice locations (1)
- 2922 W Devon AveChicago, IL 60659-1508Phone: (773) 283-7700
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2022-12-22
- Certified
- 2022-12-12
Frequently asked questions
- What is Leonid Ayzenberg's NPI number?
- Leonid Ayzenberg's National Provider Identifier (NPI) is 1164519526, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonid Ayzenberg's specialty?
- Leonid Ayzenberg is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonid Ayzenberg located?
- Leonid Ayzenberg's practice location on file with NPPES is 303 E. Rand Rd, Mount Prospect, IL 60056-1508.
- What is Leonid Ayzenberg's phone number?
- The practice phone number listed in the NPPES registry for Leonid Ayzenberg is (847) 537-6800.
- Does Leonid Ayzenberg accept Medicare?
- Leonid Ayzenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonid Ayzenberg's NPI active?
- Yes — Leonid Ayzenberg's NPI (1164519526) is active in the NPPES registry as of the last update on 2022-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.