Fabio Massaiti Iwamoto, MD
NPI 1053623934ActiveIndividual· Psychiatry & Neurology, Neurology· Stanford, CA
Psychiatry & Neurology, Neurology (MD) with Stanford Health Care and 1 other group, practicing in Stanford, California. 114 Medicare patients in 2024, $82,582 paid; nearly all of their 73 Part D prescriptions were generic (93%). Telix Pharmaceuticals was the largest of 2 companies reporting payments in 2025, $2,181 in all, mostly travel and lodging. Lists New York-Presbyterian Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1053623934 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2010 |
| Last updated in NPPES | Jul 2, 2026 |
| Certified by provider | Jul 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 264009 | NY |
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 - Neurology (CA); Practitioner - Neurology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 114 |
|---|---|
| Services billed | 1,119 across 11 procedure codes |
| Paid by Medicare | $82,582 |
Part D prescriptions in 2024
| Prescriptions (claims) | 73 · 111 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $3,629 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical groups
- Stanford Health CareStanford, CA · 3,122 clinicians
- Trustees of Columbia University in the City of New YorkNew York, NY · 2,296 clinicians
Hospital affiliations
- New York-Presbyterian HospitalNew York, NY
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$2,181 · 7 payments from 2 companies
- 2024$9,244 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Telix Pharmaceuticals | $2,083 | 6 |
| Caris Mpi, Inc. | $97.19 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,730 · 2 payments
- Food and Beverage$450.24 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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