Alana Suzanne Yahiro Leibowitz
NPI 1073925640ActiveIndividual· Physician Assistant· Walnut Creek, CA
Physician Assistant with Bass Medical Group, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $16,712 for 134 claims, against $1,324 paid for services in 2024. Mayne Pharma Commercial LLC was the largest of 7 companies reporting payments in 2025, $487.10 in all, mostly food and beverage. Lists John Muir Medical Center - Concord Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1073925640 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | May 29, 2014 |
| Last updated in NPPES | Feb 10, 2025 |
| Certified by provider | Feb 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA17250 | CA |
| Clinic/Center, Ambulatory Fertility Facility | 261QA0006X | PA 17250 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 23 across 5 procedure codes |
| Paid by Medicare | $1,324 |
Part D prescriptions in 2024
| Prescriptions (claims) | 134 · 343 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $16,712 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$487.10 · 46 payments from 7 companies
- 2024$282.80 · 13 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $211.48 | 32 |
| Astellas Pharma US Inc | $105.04 | 4 |
| Evofem Biosciences, Inc. | $83.89 | 6 |
| Biogen, Inc. | $25.85 | 1 |
| Ferring Pharmaceuticals Inc. | $23.84 | 1 |
What the 2025 payments were for
- Food and Beverage$487.10 · 46 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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