Shawn Shambaugh, M.D.
NPI 1659360253ActiveIndividual· Specialist· Bakersfield, CA
Specialist (M.D.) with Ravi Patel M D Inc, practicing in Bakersfield, California. Their prescriptions cost Medicare Part D more than their services did: $4,414,620 for 679 claims, against $894,078 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 44 companies reporting payments in 2025, $6,000 in all, mostly food and beverage. Lists Adventist Health Bakersfield and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1659360253 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 17, 2005 |
| Last updated in NPPES | Oct 5, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | A52158 | CA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,106 |
|---|---|
| Services billed | 51,826 across 130 procedure codes |
| Paid by Medicare | $894,078 |
Part D prescriptions in 2024
| Prescriptions (claims) | 679 · 898 30-day fills |
|---|---|
| Patients | 112 |
| Total drug cost | $4,414,620 |
| Generic share | 54% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Ravi Patel M D IncBakersfield, CA · 18 clinicians
Hospital affiliations
- Adventist Health BakersfieldBakersfield, CA
- Bakersfield Memorial HospitalBakersfield, CA
- Mercy HospitalBakersfield, CA
Industry payments (Open Payments)
- 2025$6,000 · 325 payments from 44 companies
- 2024$6,160 · 271 payments from 38 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $650.04 | 48 |
| Daiichi Sankyo Inc. | $461.17 | 25 |
| Janssen Biotech, Inc. | $398.67 | 25 |
| Pfizer Inc. | $363.97 | 20 |
| Glaxosmithkline, LLC. | $348.04 | 16 |
What the 2025 payments were for
- Food and Beverage$5,879 · 322 payments
- Education$121.14 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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