Saiyun Hou, M.D., PH.D
NPI 1326464660ActiveIndividual· Physical Medicine & Rehabilitation, Pain Medicine· San Diego, CA
Physical Medicine & Rehabilitation, Pain Medicine (M.D., PH.D) with Michael Moon MD A Medical Corporation, practicing in San Diego, California. Their prescriptions cost Medicare Part D more than their services did: $272,554 for 2,706 claims, against $161,632 paid for services in 2024. Collegium Pharmaceutical, Inc. was the largest of 5 companies reporting payments in 2025, $283.85 in all, mostly food and beverage.
Overview
| NPI | 1326464660 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D |
| Sole proprietor | No |
| NPI issued | Mar 11, 2014 |
| Last updated in NPPES | May 15, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physical Medicine & Rehabilitation, Pain Medicine Primary | 2081P2900X | A140529 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Pain Management (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 124 |
|---|---|
| Services billed | 2,798 across 39 procedure codes |
| Paid by Medicare | $161,632 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,706 · 2,802 30-day fills |
|---|---|
| Patients | 169 |
| Total drug cost | $272,554 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Pain Management |
| Telehealth | Offers telehealth |
Medical group
- Michael Moon MD A Medical CorporationLa Jolla, CA · 2 clinicians
Industry payments (Open Payments)
- 2025$283.85 · 17 payments from 5 companies
- 2024$599.32 · 27 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Collegium Pharmaceutical, Inc. | $148.26 | 11 |
| Medtronic, Inc. | $59.24 | 3 |
| Vertex Pharmaceuticals Incorporated | $33.30 | 1 |
| Boston Scientific Corporation | $22.73 | 1 |
| Globus Medical, Inc. | $20.32 | 1 |
What the 2025 payments were for
- Food and Beverage$283.85 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 Physical Medicine & Rehabilitation, Pain Medicine providers in San Diego · All Physical Medicine & Rehabilitation, Pain Medicine providers in California