Mark J. Fredrick, MD
NPI 1518964998ActiveIndividual· Internal Medicine· Huntington Beach, CA
Internal Medicine (MD) in Huntington Beach, California, trained at Indiana University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $679,032 for 7,508 claims, against $33,306 paid for services in 2024. Pfizer Inc. reported $120.08 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1518964998 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 30, 2005 |
| Last updated in NPPES | Dec 15, 2025 |
| Certified by provider | Dec 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G67380 | 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 | 216 |
|---|---|
| Services billed | 570 across 36 procedure codes |
| Paid by Medicare | $33,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,508 · 16,135 30-day fills |
|---|---|
| Patients | 510 |
| Total drug cost | $679,032 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Industry payments (Open Payments)
- 2025$120.08 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $120.08 | 1 |
What the 2025 payments were for
- Food and Beverage$120.08 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 71 internal medicine physicians in Huntington Beach · All internal medicine physicians in California