Steven Park-Kin Tam, M.D.
NPI 1114959228ActiveIndividual· Internal Medicine· La Jolla, CA
Internal Medicine (M.D.) in La Jolla, California, trained at University of California, San Diego School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $389,578 for 4,363 claims, against $78,020 paid for services in 2024.
Overview
| NPI | 1114959228 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Jun 29, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A94307 | 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 | 448 |
|---|---|
| Services billed | 1,306 across 27 procedure codes |
| Paid by Medicare | $78,020 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,363 · 10,140 30-day fills |
|---|---|
| Patients | 443 |
| Total drug cost | $389,578 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University ofOrange, CA · 30 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Acacia Hh&p of Southern California, LLCHome health agency · Irvine, CA
- Acacia Home Health ServicesHome health agency · Glendale, CA
- Premium Home Health, IncHome health agency · Norwalk, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 179 internal medicine physicians in La Jolla · All internal medicine physicians in California