Takahiro Otsuka, MD
NPI 1790895803ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Loma Linda, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Faculty Physicians and Surgeons of Llusm, practicing in Loma Linda, California. Their prescriptions cost Medicare Part D more than their services did: $2,464,879 for 5,896 claims, against $97,277 paid for services in 2024. Medtronic, Inc. was the largest of 16 companies reporting payments in 2025, $1,863 in all, mostly food and beverage. Lists Barstow Community Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1790895803 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 30, 2006 |
| Last updated in NPPES | Jul 11, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A55960 | 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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 383 |
|---|---|
| Services billed | 1,217 across 15 procedure codes |
| Paid by Medicare | $97,277 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,896 · 12,725 30-day fills |
|---|---|
| Patients | 655 |
| Total drug cost | $2,464,879 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Faculty Physicians and Surgeons of LlusmLoma Linda, CA · 1,315 clinicians
Hospital affiliations
- Barstow Community HospitalBarstow, CA
- Bear Valley Community HospitalBig Bear Lake, CA
- Loma Linda University Medical CenterLoma Linda, CA
- Providence St Mary Medical CenterApple Valley, CA
Industry payments (Open Payments)
- 2025$1,863 · 75 payments from 16 companies
- 2024$1,374 · 75 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $613.07 | 6 |
| Novo Nordisk Inc | $209.94 | 12 |
| Abbott Laboratories | $191.59 | 9 |
| Ascendis Pharma Endocrinology Inc | $170.72 | 15 |
| Xeris Pharmaceuticals, Inc. | $140.16 | 9 |
What the 2025 payments were for
- Food and Beverage$1,447 · 72 payments
- Travel and Lodging$376.29 · 1 payment
- Education$39.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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