Gagan S. Chadha, MD
Internal Medicine Physician · West Lafayette, IN
Gagan S. Chadha, MD is an internal medicine physician with a practice address in West Lafayette, Indiana, and NPI 1568430874, issued on Mar 11, 2006. Check the license (Indiana 01048719A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Gagan S. Chadha
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01048719A IN
Self-reported in NPPES; status is on the state search - Practice location
- 166 Sagamore Pkwy W, West Lafayette, IN 47906
- Phone
- (765) 497-2428
- Enumerated
- Mar 11, 2006
- Record last updated
- Mar 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (765) 497-4251
- Medicaid ID
- 200212530 IN
- Medicare enrollment
- Enrolled (PECOS I20040713001461); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,109 in Indiana → Look up another NPI →
Also registered at 166 Sagamore Pkwy W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cynthia Bricknell, FNPFamily Nurse Practitioner1356776306
Verify Gagan S. Chadha in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01048719ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% more Medicare Part D claims than the average internal medicine physician in 2024
5,187 Medicare Part D claims for 264 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium327 claims
- Omeprazole277 claims
- Levothyroxine Sodium234 claims
- Amlodipine Besylate192 claims
- Rosuvastatin Calcium158 claims
- Meloxicam119 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.
The MIPS final score for 2023 (Medicare payment program): 96.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Unity Healthcare LLCWest Lafayette, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gagan S. Chadha among 2,109 internal medicine physician records in Indiana
Gagan S. Chadha, MD is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1992 · median 2005 among the 1,448 with a school on file
- Record last updated2021 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in West Lafayette
They are 12 of the 1,112 NPPES records with a practice address in West Lafayette, and 2,109 internal medicine physician records in Indiana.
All 2,109 in Indiana → Every provider in West Lafayette → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ruth Abramovitz, MDWest Lafayette, IN 479061649248915
- William Adair, M.D.West Lafayette, IN 479061780797522
- Zarah-Ann Alba, M.D.West Lafayette, IN 479061164417812
- Timothy Fisher, MDWest Lafayette, IN 479061467421859
- Grainne O'Malley, MDWest Lafayette, IN 479061407230501
- Esteban Ramirez, DOWest Lafayette, IN 479061801925698
- Julianne Stout, MDWest Lafayette, IN 479061245276005
- Sarette ZawadskyWest Lafayette, IN 479061548265317
Common questions
What is Gagan S. Chadha, MD's NPI number?
Gagan S. Chadha, MD's National Provider Identifier (NPI) is 1568430874, issued on Mar 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gagan S. Chadha, MD located?
The NPPES record lists a practice address at 166 Sagamore Pkwy W, West Lafayette, IN, 47906. Phone: (765) 497-2428. Providers update this record themselves, so call before visiting.
How can I verify Gagan S. Chadha, MD's license?
NPPES lists Indiana license number 01048719A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gagan S. Chadha, MD prescribe under Medicare Part D?
In 2024, Gagan S. Chadha, MD had 5,187 Medicare Part D claims for 264 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Gagan S. Chadha, MD's MIPS final score?
The 2023 MIPS final score is 96.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.