Clayton B. Dejong, MD
NPI 1467466409ActiveIndividual· Internal Medicine· Long Beach, CA
Internal Medicine (MD) in Long Beach, California, trained at University of Iowa, Rj & L Carver College of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $442,432 for 5,749 claims, against $138,477 paid for services in 2024. Pfizer Inc. reported $19.89 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1467466409 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 27, 2006 |
| Last updated in NPPES | Dec 29, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A42912 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 331 |
|---|---|
| Services billed | 3,262 across 50 procedure codes |
| Paid by Medicare | $138,477 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,749 · 12,977 30-day fills |
|---|---|
| Patients | 572 |
| Total drug cost | $442,432 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Prohealth Partners, A Medical GroupLong Beach, CA · 239 clinicians
Hospital affiliations
- Memorialcare Long Beach Medical CenterLong Beach, CA
- St Mary Medical CenterLong Beach, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Hygieia Home Health IncHome health agency · Lakewood, CA
Industry payments (Open Payments)
- 2025$19.89 · 1 payment from 1 company
- 2024$53.48 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $19.89 | 1 |
What the 2025 payments were for
- Food and Beverage$19.89 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 298 internal medicine physicians in Long Beach · All internal medicine physicians in California