NPPES file of Aug 9, 2026

Ranjana Chauhan, MD

Ophthalmology Physician · Hinsdale, IL

Ranjana Chauhan, MD is an ophthalmology physician with a practice address in Hinsdale, Illinois, and NPI 1093766594, issued on May 12, 2006. Check the license (Illinois 036147377, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093766594
Name
Ranjana Chauhan
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
036147377 IL
MD26191 OR
MD00045761 WA
Self-reported in NPPES; status is on the state search
Practice location
908 N Elm St Ste 104, Hinsdale, IL 60521
Phone
(630) 322-8300
Enumerated
May 12, 2006
Record last updated
Aug 4, 2023
Medicaid IDs
271005 OR
271053 OR
Medicare enrollment
Enrolled (PECOS I20180924000203); accepts Medicare assignment
Medical or professional school
Northeastern Ohio University College Of Medicine, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ranjana Chauhan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036147377
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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33% fewer Medicare Part D claims than the average ophthalmology physician in 2024

1,018 Medicare Part D claims for 243 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.

  1. Ranjana Chauhan1,018
  2. Specialty average1,518

Most prescribed

  1. Latanoprost303 claims
  2. Prednisolone Acetate136 claims
  3. Ketorolac Tromethamine120 claims
  4. Ofloxacin106 claims
  5. Restasis89 claims
  6. Dorzolamide-Timolol61 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $52.66

2 payments; by number, the most common kind was food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ranjana Chauhan$52.66
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dupage Medical Group LtdJoliet, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ophthalmology Physician providers in Illinois

There are 898 ophthalmology physician records in Illinois.

Other ophthalmology physician records in Illinois

  1. Walid Abdallah, MDRockford, IL1871912717
  2. Robert Abishek, MDChicago, IL1760314678
  3. Ashley Abraham, M.D.Springfield, IL1285900423
  4. Evelyn Ackermann, MDElgin, IL1053308676
  5. Kathleen Ackman Blake, MDHinsdale, IL1497734966
  6. Kaela Acuff, MDChicago, IL1609678549
  7. Nolan AdamsMaywood, IL1124581780
  8. Mohamed Adenwalla, M.D.Elmhurst, IL1184679524
  9. Roger Adler, MDPekin, IL1063465110
  10. Armin Afshar, M.D.Chicago, IL1063742161

Common questions

What is Ranjana Chauhan, MD's NPI number?

Ranjana Chauhan, MD's National Provider Identifier (NPI) is 1093766594, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ranjana Chauhan, MD located?

The NPPES record lists a practice address at 908 N Elm St Ste 104, Hinsdale, IL, 60521. Phone: (630) 322-8300. Providers update this record themselves, so call before visiting.

How can I verify Ranjana Chauhan, MD's license?

NPPES lists Illinois license number 036147377, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ranjana Chauhan, MD prescribe under Medicare Part D?

In 2024, Ranjana Chauhan, MD had 1,018 Medicare Part D claims for 243 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.