Arvind K. Maheshwari, MD
NPI 1659767903ActiveIndividual· Internal Medicine· Barrington, IL
Internal Medicine (MD) with Advocate Health and Hospitals Corporation, practicing in Barrington, Illinois. Their prescriptions cost Medicare Part D more than their services did: $465,080 for 1,457 claims, against $98,713 paid for services in 2024. Alexion Pharmaceuticals, Inc. was the largest of 4 companies reporting payments in 2025, $1,722 in all, mostly consulting fees. Lists Advocate Condell Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1659767903 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 14, 2015 |
| Last updated in NPPES | Sep 2, 2025 |
| Certified by provider | Sep 2, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-146220 | IL |
| Internal Medicine | 207R00000X | 036146220 | IL |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 036-146220 | IL |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 65771 | MN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 310 |
|---|---|
| Services billed | 1,159 across 19 procedure codes |
| Paid by Medicare | $98,713 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,457 · 2,732 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $465,080 |
| Generic share | 33% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Good Shepherd HospitalBarrington, IL
- Advocate Illinois Masonic Medical CenterChicago, IL
- Advocate Lutheran General HospitalPark Ridge, IL
- Advocate Sherman HospitalElgin, IL
Industry payments (Open Payments)
- 2025$1,722 · 10 payments from 4 companies
- 2024$85.80 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $1,173 | 4 |
| Corcept Therapeutics | $433.53 | 4 |
| Cardiva Medical, Inc. | $73.57 | 1 |
| Mannkind Corporation | $42.50 | 1 |
What the 2025 payments were for
- Consulting Fee$900.00 · 1 payment
- Food and Beverage$779.74 · 8 payments
- Education$42.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 internal medicine physicians in Barrington · All internal medicine physicians in Illinois