Alexis Warren
NPI 1457880171 · Ophthalmology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexis Warren is a Ophthalmology Physician provider in Chicago, IL (NPI 1457880171).
Provider details
- NPI number
- 1457880171
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- R10912 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 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
1,355 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) |
|---|---|---|
| Imaging of Retina92134 | 537 | $25 |
| Established Patient Complete Exam of Visual System92014 | 422 | $76 |
| Injection of Drug Into Eye67028 | 174 | $94 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 82 | $87 |
| Photography of the Retina92250 | 73 | $21 |
| 2d Ultrasound Scan of Eye Tissue and Structures76512 | 24 | $35 |
| Destruction of Leaking Blood Vessels of Retina Using Laser |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 46 | 27 |
| Ketorolac Tromethamine | 37 | 15 |
| Difluprednate | 25 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 17 | — |
| Brimonidine Tartrate | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,416 across 9 records (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)
- 5841 S Maryland AveChicago, IL 60637-1443Phone: (773) 702-1000
Registry dates
- Enumerated
- 2017-06-06
- Last updated
- 2024-09-12
- Certified
- 2024-09-12
Frequently asked questions
- What is Alexis Warren's NPI number?
- Alexis Warren's National Provider Identifier (NPI) is 1457880171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexis Warren's specialty?
- Alexis Warren is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Alexis Warren located?
- Alexis Warren's practice location on file with NPPES is 1855 W Taylor St, Chicago, IL 60612-7242.
- What is Alexis Warren's phone number?
- The practice phone number listed in the NPPES registry for Alexis Warren is (312) 996-6590.
- Does Alexis Warren accept Medicare?
- Alexis Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexis Warren's NPI active?
- Yes — Alexis Warren's NPI (1457880171) is active in the NPPES registry as of the last update on 2024-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.