Kanwar R. S. Gill, M.D.
NPI 1861409385ActiveIndividual· Internal Medicine, Gastroenterology· Walnut Creek, CA
Internal Medicine, Gastroenterology (M.D.) with John Muir Physician Network, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $1,969,014 for 2,372 claims, against $273,038 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 16 companies reporting payments in 2025, $56,655 in all, mostly speaking and faculty fees. Lists John Muir Medical Center - Concord Campus and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1861409385 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 1, 2006 |
| Last updated in NPPES | Sep 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A92249 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | ME96108 | FL |
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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 879 |
|---|---|
| Services billed | 2,413 across 68 procedure codes |
| Paid by Medicare | $273,038 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,372 · 4,658 30-day fills |
|---|---|
| Patients | 756 |
| Total drug cost | $1,969,014 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- San Ramon Regional Medical CenterSan Ramon, CA
Industry payments (Open Payments)
- 2025$56,655 · 129 payments from 16 companies
- 2024$19,656 · 96 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $43,901 | 38 |
| Celltrion USA Inc. | $10,908 | 11 |
| Abbvie Inc. | $469.82 | 21 |
| Janssen Biotech, Inc. | $289.70 | 11 |
| Takeda Pharmaceuticals U.S.A., Inc. | $241.01 | 10 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$39,674 · 14 payments
- Honoraria$8,370 · 4 payments
- Travel and Lodging$3,949 · 6 payments
- Food and Beverage$3,644 · 103 payments
- Consulting Fee$967.50 · 1 payment
- Education$50.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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