Sudip Thakar, MD
NPI 1811492432 · Ophthalmology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sudip Thakar, MD is a Ophthalmology Physician provider in Chicago, IL (NPI 1811492432).
Provider details
- NPI number
- 1811492432
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- V1285 (TX)
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 tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
6 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Erythromycin Basebrand: Erythromycin | 173 | 133 |
| Tramadol Hcl | 53 | 52 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 29 | 26 |
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.
Practice location
Mailing address
Additional practice locations (5)
- 225 E Chicago AveChicago, IL 60611-2991Phone: (312) 227-4000
- 355 E Erie StChicago, IL 60611-3167Phone: (312) 238-1000
- 2750 W North AveChicago, IL 60647-5247Phone: (312) 666-3494
- 1475 E Belvidere RdGrayslake, IL 60030-2012Phone: (847) 535-7157
- 22407 Holzwarth RoadSpring, TX 77389Phone: (346) 674-4000
Registry dates
- Enumerated
- 2018-03-26
- Last updated
- 2024-05-24
- Certified
- 2024-05-20
Frequently asked questions
- What is Sudip Thakar's NPI number?
- Sudip Thakar's National Provider Identifier (NPI) is 1811492432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sudip Thakar's specialty?
- Sudip Thakar is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Sudip Thakar located?
- Sudip Thakar's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-2908.
- What is Sudip Thakar's phone number?
- The practice phone number listed in the NPPES registry for Sudip Thakar is (312) 926-2000.
- Does Sudip Thakar accept Medicare?
- Sudip Thakar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sudip Thakar's NPI active?
- Yes — Sudip Thakar's NPI (1811492432) is active in the NPPES registry as of the last update on 2024-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.