Barbara Susan Giesser, MD
NPI 1235154055ActiveIndividual· Psychiatry & Neurology, Neurology· Santa Monica, CA
Psychiatry & Neurology, Neurology (MD) in Santa Monica, California, trained at University of Texas Medical School at San Antonio (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $2,870,266 for 869 claims, against $137,239 paid for services in 2024. Biogen, Inc. was the largest of 8 companies reporting payments in 2025, $385.13 in all, mostly food and beverage.
Overview
| NPI | 1235154055 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 13, 2006 |
| Last updated in NPPES | Aug 14, 2020 |
| Certified by provider | Aug 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | C50803 | 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 - Neurology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 115 |
|---|---|
| Services billed | 5,129 across 23 procedure codes |
| Paid by Medicare | $137,239 |
Part D prescriptions in 2024
| Prescriptions (claims) | 869 · 1,302 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $2,870,266 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Providence Saint Johns Medical FoundationSanta Monica, CA · 281 clinicians
Hospital affiliation
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2025$385.13 · 10 payments from 8 companies
- 2024$271.40 · 17 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $150.00 | 1 |
| Genentech USA, Inc. | $70.00 | 2 |
| Amgen Inc. | $57.26 | 2 |
| Ascendis Pharma Endocrinology Inc | $25.69 | 1 |
| Caris Mpi, Inc. | $23.89 | 1 |
What the 2025 payments were for
- Food and Beverage$177.87 · 7 payments
- Consulting Fee$150.00 · 1 payment
- Education$57.26 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other neurologists in Santa Monica
- 1013171834
- 1235689332
- 1316011984
- 1336330141
- 1457379836
- 1457556581
- 1487679858
- 1508065947
- 1528475969
- 1528479383
- 1548589799
- 1568466555
All 42 neurologists in Santa Monica · All neurologists in California