Ranjana Chauhan, MD
NPI 1093766594 · Ophthalmology Physician · Hinsdale, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ranjana Chauhan, MD is a Ophthalmology Physician provider in Hinsdale, IL (NPI 1093766594).
Provider details
- NPI number
- 1093766594
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD26191 (OR)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
623 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 Complete Exam of Visual System92014 | 172 | $127 |
| Established Patient Problem Focused Exam of Visual System92012 | 146 | $91 |
| New Patient Complete Exam of Visual System92004 | 65 | $151 |
| Exam of Visual Field With Extended Testing92083 | 51 | $65 |
| Imaging of Retina92134 | 44 | $40 |
| Imaging of Optic Nerve92133 | 42 | $35 |
| Removal of Cataract With Insertion of Prosthetic Lens |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 303 | 72 |
| Prednisolone Acetate | 136 | 80 |
| Ketorolac Tromethamine | 120 | 72 |
| Ofloxacin | 106 | 70 |
| Cyclosporinebrand: Restasis | 89 | 28 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 61 | 17 |
| Doxycycline Hyclate | 49 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$53 across 2 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
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2023-08-04
- Certified
- 2023-08-04
Frequently asked questions
- What is Ranjana Chauhan's NPI number?
- Ranjana Chauhan's National Provider Identifier (NPI) is 1093766594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ranjana Chauhan's specialty?
- Ranjana Chauhan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ranjana Chauhan located?
- Ranjana Chauhan's practice location on file with NPPES is 908 N Elm St Ste 104, Hinsdale, IL 60521-3687.
- What is Ranjana Chauhan's phone number?
- The practice phone number listed in the NPPES registry for Ranjana Chauhan is (630) 322-8300.
- Does Ranjana Chauhan accept Medicare?
- Ranjana Chauhan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ranjana Chauhan's NPI active?
- Yes — Ranjana Chauhan's NPI (1093766594) is active in the NPPES registry as of the last update on 2023-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.