Catherine Thuruthumaly, MD
NPI 1225395403 · Ophthalmology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Thuruthumaly, MD is a Ophthalmology Physician provider in Chicago, IL (NPI 1225395403).
Provider details
- NPI number
- 1225395403
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 69247 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
573 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 Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 275 | $134 |
| Exam of Visual Field With Extended Testing92083 | 132 | $25 |
| Imaging of Optic Nerve92133 | 53 | $20 |
| Established Patient Problem Focused Exam of Visual System92012 | 31 | $47 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $90 |
| Insertion of Eye Fluid Drainage Device66183 | 17 | $890 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 916 | 279 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 625 | 179 |
| Brimonidine Tartrate | 464 | 141 |
| Prednisolone Acetate | 391 | 153 |
| Timolol Maleate | 321 | 106 |
| Dorzolamide Hcl | 220 | 68 |
| Ofloxacin | 192 | 72 |
| Netarsudil Mesylatebrand: Rhopressa |
Practice location
Mailing address
Additional practice locations (1)
- 680 N Lake Shore DrChicago, IL 60611-4546Phone: (312) 695-6868
Registry dates
- Enumerated
- 2012-04-12
- Last updated
- 2018-06-12
Frequently asked questions
- What is Catherine Thuruthumaly's NPI number?
- Catherine Thuruthumaly's National Provider Identifier (NPI) is 1225395403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Thuruthumaly's specialty?
- Catherine Thuruthumaly is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Thuruthumaly located?
- Catherine Thuruthumaly's practice location on file with NPPES is 680 N Lake Shore Dr, Chicago, IL 60611.
- What is Catherine Thuruthumaly's phone number?
- The practice phone number listed in the NPPES registry for Catherine Thuruthumaly is (312) 695-6868.
- Does Catherine Thuruthumaly accept Medicare?
- Catherine Thuruthumaly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Thuruthumaly's NPI active?
- Yes — Catherine Thuruthumaly's NPI (1225395403) is active in the NPPES registry as of the last update on 2018-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.