David Hyunin Ko, MD
NPI 1689683690ActiveIndividual· Internal Medicine· Encinitas, CA
Internal Medicine (MD) in Encinitas, California, trained at Loma Linda University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $575,720 for 7,537 claims, against $175,117 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $444.39 in all, mostly food and beverage.
Overview
| NPI | 1689683690 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 7, 2006 |
| Last updated in NPPES | Jun 17, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A69524 | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 671 |
|---|---|
| Services billed | 5,287 across 37 procedure codes |
| Paid by Medicare | $175,117 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,537 · 18,227 30-day fills |
|---|---|
| Patients | 713 |
| Total drug cost | $575,720 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Scripps HealthLa Jolla, CA · 1,433 clinicians
Hospital affiliations
- Scripps Green HospitalLa Jolla, CA
- Scripps Memorial Hospital - EncinitasEncinitas, CA
- Scripps Memorial Hospital la JollaLa Jolla, CA
Other facilities
- Advantage Health SystemsHome health agency · San Diego, CA
- Archer Health IncHome health agency · Carlsbad, CA
- Seaport Scripps Home HealthHome health agency · San Diego, CA
- GlenbrookNursing home · Carlsbad, CA
Industry payments (Open Payments)
- 2025$444.39 · 14 payments from 3 companies
- 2024$196.91 · 9 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $403.57 | 12 |
| Merck Sharp & Dohme LLC | $27.23 | 1 |
| Lilly USA, LLC | $13.59 | 1 |
What the 2025 payments were for
- Food and Beverage$444.39 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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