Ishaan Singh Kalha, MD
NPI 1295711539ActiveIndividual· Internal Medicine, Gastroenterology· Bakersfield, CA
Internal Medicine, Gastroenterology (MD) with Kern County Hospital Authority and 1 other group, practicing in Bakersfield, California. Their prescriptions cost Medicare Part D more than their services did: $605,025 for 2,259 claims, against $206,246 paid for services in 2024. Abbvie Inc. was the largest of 6 companies reporting payments in 2025, $183.07 in all, mostly food and beverage. Lists Adventist Health Bakersfield and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1295711539 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Dec 19, 2005 |
| Last updated in NPPES | Apr 1, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A72491 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 1,028 |
|---|---|
| Services billed | 3,364 across 42 procedure codes |
| Paid by Medicare | $206,246 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,259 · 4,315 30-day fills |
|---|---|
| Patients | 614 |
| Total drug cost | $605,025 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Kern County Hospital AuthorityBakersfield, CA · 266 clinicians
- Kern Gastroenterology Medical GroupBakersfield, CA · 6 clinicians
Hospital affiliations
- Adventist Health BakersfieldBakersfield, CA
- Adventist Health DelanoDelano, CA
- Bakersfield Memorial HospitalBakersfield, CA
- Kern Medical CenterBakersfield, CA
- Mercy HospitalBakersfield, CA
Industry payments (Open Payments)
- 2025$183.07 · 9 payments from 6 companies
- 2024$699.97 · 45 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $60.14 | 3 |
| Aimmune Therapeutics, Inc. | $32.70 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $32.46 | 1 |
| Gilead Sciences, Inc. | $21.29 | 1 |
| Boston Scientific Corporation | $19.33 | 1 |
What the 2025 payments were for
- Food and Beverage$183.07 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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