William N. Bichai, M.D.
NPI 1548349004ActiveIndividual· Internal Medicine, Nephrology· Bakersfield, CA
Internal Medicine, Nephrology (M.D.) with William N Bichai MD Inc., practicing in Bakersfield, California. Their prescriptions cost Medicare Part D more than their services did: $7,663,366 for 69,453 claims, against $737,383 paid for services in 2024. Mannkind Corporation was the largest of 5 companies reporting payments in 2025, $184.87 in all, mostly food and beverage. Lists Adventist Health Bakersfield and 1 other hospital as hospital affiliations.
Overview
| NPI | 1548349004 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 3, 2006 |
| Last updated in NPPES | Sep 28, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A92564 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,048 |
|---|---|
| Services billed | 11,037 across 49 procedure codes |
| Paid by Medicare | $737,383 |
Part D prescriptions in 2024
| Prescriptions (claims) | 69,453 · 74,651 30-day fills |
|---|---|
| Patients | 1,576 |
| Total drug cost | $7,663,366 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | General Practice, Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- William N Bichai MD Inc.Bakersfield, CA · 2 clinicians
Hospital affiliations
- Adventist Health BakersfieldBakersfield, CA
- Good Samaritan Hospital, LPBakersfield, CA
Other facilities
- Central Bakersfield Dialysis CenterDialysis facility · Bakersfield, CA
- Fresenius Medical Care Bakersfield NortheastDialysis facility · Bakersfield, CA
- Fresenius Medical Care of BakersfieldDialysis facility · Bakersfield, CA
- North Bakersfield DialysisDialysis facility · Bakersfield, CA
- Dependable Care Home Health, Inc.Home health agency · Burbank, CA
- Mercy-Memorial Home HealthHome health agency · Bakersfield, CA
- Primamed Health Services Inc.Home health agency · Bakersfield, CA
- Pro Nursing Home Care, IncHome health agency · Bakersfield, CA
- Purpose Driven Home Health, LLCHome health agency · Bakersfield, CA
- Aasta HospiceHospice · Bakersfield, CA
- Aasta HospiceHospice · Camarillo, CA
- Alpha Hospice Services, Inc.Hospice · Glendora, CA
- Hoffmann HospiceHospice · Bakersfield, CA
- Infinite Heart HospiceHospice · Visalia, CA
- Parkview Julian Healthcare CenterNursing home · Bakersfield, CA
- San Joaquin Nursing Center and Rehabilitation CentNursing home · Bakersfield, CA
- Shafter Nursing CareNursing home · Shafter, CA
- The Orchards Post-AcuteNursing home · Bakersfield, CA
- The Rehabilitation Center of BakersfieldNursing home · Bakersfield, CA
Industry payments (Open Payments)
- 2025$184.87 · 8 payments from 5 companies
- 2024$257.67 · 22 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mannkind Corporation | $101.92 | 3 |
| E.R. Squibb & Sons, L.L.C. | $34.59 | 2 |
| Vanda Pharmaceuticals Inc. | $19.43 | 1 |
| Paratek Pharmaceuticals, Inc. | $15.39 | 1 |
| Pfizer Inc. | $13.54 | 1 |
What the 2025 payments were for
- Food and Beverage$99.87 · 6 payments
- Education$85.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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