Dr. Gagan S. Chadha, MD
- Medicare services, 2024
- 1,877
- Medicare patients, 2024
- 342
- Part D claims, 2024
- 5,187
- Hospital affiliations
- 4
- Industry payments
- $27,702
- Practice address
- 166 Sagamore Pkwy W Garan Chadha Md, West Lafayette, IN 47906-1569
- Practice phone
- Call (765) 449-2458
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gagan S Chadha, MD
Primary care practice · West Lafayette, Indiana
Find Dr. Chadha's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gagan S. Chadha is an internist in West Lafayette, Indiana
Dr. Chadha practices at Gagan S Chadha, MD in West Lafayette, Indiana.
Dr. Chadha's NPI, 1568430874, was assigned on March 11, 2006. Dr. Chadha graduated from Delhi University College of Medical Sciences in 1992. Dr. Chadha's Indiana license number on file is 01048719A.
- NPI
- 1568430874NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244123214
- NPI enumeration date
- March 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (765) 449-2458
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gagan S. Chadha practices at Gagan S Chadha, MD in West Lafayette, Indiana
Dr. Chadha's primary practice is Gagan S Chadha, MD, at 166 Sagamore Pkwy W Garan Chadha Md, West Lafayette, IN 47906-1569. The practice phone is (765) 449-2458.
- Gagan S Chadha, MD166 Sagamore Pkwy W Garan Chadha Md, West Lafayette, IN 47906-1569Phone(765) 449-2458
Source: Dmand AI Affiliation Data
Dr. Gagan S. Chadha is affiliated with 6 sites of care and 1 medical group
Dr. Chadha's primary practice is Gagan S Chadha, MD in West Lafayette, Indiana. Dr. Chadha is also affiliated with Indiana University Health Arnett Hospital. The medical group on file is Unity Healthcare. Dmand AI also links Dr. Chadha to 3 more hospitals and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gagan S. Chadha's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chadha practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gagan S Chadha, MD | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gagan S. Chadha is one of 1,987 internists in Indiana
Internal medicine is Dr. Chadha's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chadha is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Chadha's licenses on file in 2 states: Indiana and Illinois.
Specialties and state licenses
- Internal medicine, IndianaPrimary
- Illinois license
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, ankle or foot injury, anxiety, arthritis, asthma and atrial fibrillation and flutter among the conditions Dr. Chadha treats.
Internists near Dr. Chadha
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gagan S. Chadha billed Medicare for 1,877 services in 2024
CMS data shows 1,877 Medicare services from Dr. Chadha across 12 procedure codes in 2024, for 342 Medicare patients. Medicare paid $128,099 for them. Every service was in an office.
Dr. Chadha's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1262024: 1,1573%
- Other services
- 2023: 3372024: 3627%
- Tests and treatments
- 2023: 3552024: 3356%
- Lab and pathology
- 2023: 02024: 23
Dr. Chadha compared with the Indiana median for internists, 2024
- Dr. Chadha
- Indiana median
- Medicare services
- 1,877vs 5203.6 times
- Medicare patients
- 342vs 21261% above
- Part D claims
- 4,669vs 15929.4 times
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Chadha's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chadha?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chadha and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gagan S. Chadha treated 342 Medicare patients in 2024, average age 74
CMS counts 342 Medicare patients who saw Dr. Chadha in 2024. The largest group is 65 to 74, with 176 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chadha's median patient age at 67, with 47% women.
Dr. Chadha's Medicare patients by age, 2024
Dr. Chadha's Medicare patients by sex, 2024
- Women18454%
- Men15846%
Chronic conditions among Dr. Chadha's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Diabetes30%
- Anxiety29%
- Ischemic heart disease27%
- Mood disorders20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chadha's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gagan S. Chadha wrote 5,187 Medicare Part D claims in 2024
In 2024, Dr. Chadha wrote 5,187 Medicare Part D claims for 264 patients. 91% of them were for generic drugs. CMS names the drug for 4,669 of them, across 91 drugs with 11 or more claims each, at $219,880 in total drug cost. In 2023, CMS named 4,431 claims across 86 drugs.
Dr. Chadha's Part D claims by kind of drug, 2024
- Generic4,729 claims91%
- Brand-name and other458 claims9%
Dr. Chadha's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chadha's Part D claims, 2024
- Antibiotics3%138 of 5,187 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,4312024: 4,6695%
Drugs named by CMS: 91 in 2024, 86 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gagan S. Chadha takes part in Medicare
Dr. Chadha accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gagan S. Chadha received $27,702 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to Dr. Chadha from 5 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 99% of the total. Parsolex GMP Center, Inc. paid the most, $27,450.
General payments to Dr. Chadha by program year, 2017 to 2025
General payments to Dr. Chadha by kind, 2017 to 2025
- Consulting fees$27,45099%
- Food and beverage$2521%
Companies that paid Dr. Chadha the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gagan S. Chadha graduated from Delhi University College of Medical Sciences
Dr. Chadha graduated from Delhi University College of Medical Sciences in 1992.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Gagan S. Chadha accepts plans from 15 insurance carriers
Dr. Chadha is in network with 15 carriers, including United Healthcare, Elevance and HCSC. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- HCSC
- Aetna
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Humana
- +7 more carriersWith a free account
Plan types Dr. Chadha accepts, by number of carriers
- PPO10
- HMO7
- Medicare6
- EPO3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Gagan S. Chadha's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gagan S. Chadha
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gagan S. Chadha's NPI number?
Dr. Gagan S. Chadha's NPI number is 1568430874. It was assigned on March 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gagan S. Chadha?
Dr. Gagan S. Chadha is an internist in West Lafayette, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gagan S. Chadha practice?
Dr. Chadha practices at 166 Sagamore Pkwy W Garan Chadha Md, West Lafayette, IN 47906-1569. Dr. Chadha's primary practice is Gagan S Chadha, MD in West Lafayette, Indiana. Dmand AI also links Dr. Chadha to 3 hospitals and 1 home health agency.
What is Dr. Gagan S. Chadha's office phone number?
The practice phone on file for Dr. Chadha is (765) 449-2458.
What is Dr. Gagan S. Chadha's medical license number?
Dr. Chadha's Indiana license number on file is 01048719A, one of the licenses on file in 2 states.
Which states has Dr. Gagan S. Chadha been licensed in?
Dmand AI has state licenses on file for Dr. Chadha in Indiana (1998 to 2025) and Illinois (1994 to 1999).
Which hospitals is Dr. Gagan S. Chadha affiliated with?
Dr. Chadha is affiliated with Indiana University Health Arnett Hospital. Dmand AI links Dr. Chadha to 3 more hospitals.
What medical group is Dr. Gagan S. Chadha part of?
Dr. Chadha is linked to Unity Healthcare.
Does Dr. Gagan S. Chadha accept Medicare?
Yes. CMS data shows Dr. Chadha billed Medicare for 1,877 services in 2024, and Dr. Chadha accepts Medicare assignment.
How many Medicare patients does Dr. Gagan S. Chadha see?
CMS counts 342 Medicare patients who saw Dr. Chadha in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Gagan S. Chadha board certified?
Yes. Dr. Chadha is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Gagan S. Chadha bill to Medicare?
In 2024, Dr. Chadha's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and heart test or procedure (93000).
Where did Dr. Gagan S. Chadha go to medical school?
Dr. Chadha graduated from Delhi University College of Medical Sciences in 1992.
What drugs does Dr. Gagan S. Chadha prescribe most?
In 2024 Medicare Part D data, Dr. Chadha's most prescribed drugs by claims were Atorvastatin Calcium, Omeprazole and Levothyroxine Sodium.
Has Dr. Gagan S. Chadha received payments from drug or device companies?
CMS Open Payments shows $27,702 in general payments to Dr. Chadha from 5 companies from 2017 to 2025. The largest total came from Parsolex GMP Center, Inc.
How long has Dr. Gagan S. Chadha been practicing?
Dr. Chadha graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Gagan S. Chadha accept?
Dr. Chadha is in network with 15 carriers, including United Healthcare, Elevance and HCSC. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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