Hong Sik Kim, M.D.
NPI 1396727764ActiveIndividual· Internal Medicine, Nephrology· Garden Grove, CA
Internal Medicine, Nephrology (M.D.) in Garden Grove, California, licensed in CA, with an NPI issued in November 2005. Their prescriptions cost Medicare Part D more than their services did: $4,915,172 for 35,873 claims, against $321,271 paid for services in 2024. Abbvie Inc. was the largest of 21 companies reporting payments in 2025, $2,152 in all, mostly food and beverage.
Overview
| NPI | 1396727764 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 18, 2005 |
| Last updated in NPPES | Nov 7, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A45579 | 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 | 529 |
|---|---|
| Services billed | 5,209 across 50 procedure codes |
| Paid by Medicare | $321,271 |
Part D prescriptions in 2024
| Prescriptions (claims) | 35,873 · 63,140 30-day fills |
|---|---|
| Patients | 1,518 |
| Total drug cost | $4,915,172 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
Other facilities
- Cross Care, IncHome health agency · Los Angeles, CA
- Livingstone Home Health Services, IncHome health agency · Buena Park, CA
- Western Home Care, IncHome health agency · Buena Park, CA
Industry payments (Open Payments)
- 2025$2,152 · 100 payments from 21 companies
- 2024$2,303 · 113 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $528.47 | 37 |
| Aimmune Therapeutics, Inc. | $518.69 | 20 |
| Fresenius USA Marketing, Inc. | $170.54 | 7 |
| Lilly USA, LLC | $151.29 | 2 |
| Amgen Inc. | $139.40 | 6 |
What the 2025 payments were for
- Food and Beverage$2,152 · 100 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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