Mark Peters Foster, M.D.
NPI 1548338908ActiveIndividual· Family Medicine· Laguna Hills, CA
Family Medicine (M.D.) in Laguna Hills, California, trained at Boston University School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $237,013 for 6,272 claims, against $132,565 paid for services in 2024. Exact Sciences Corporation reported $57.35 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1548338908 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 1, 2006 |
| Last updated in NPPES | Nov 16, 2025 |
| Certified by provider | Nov 16, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A85216 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 470 |
|---|---|
| Services billed | 1,565 across 34 procedure codes |
| Paid by Medicare | $132,565 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,272 · 16,303 30-day fills |
|---|---|
| Patients | 671 |
| Total drug cost | $237,013 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
- Paloma Medical Group IncSan Juan Capistrano, CA · 19 clinicians
Hospital affiliation
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Other facilities
- Apex Home Health Care ServicesHome health agency · Santa Ana, CA
- Care Plus Home HealthHome health agency · Laguna Hills, CA
- Providence at Home With Compassus Home Health Orange CountyHome health agency · Anaheim, CA
- Royal Home Health ServicesHome health agency · Mission Viejo, CA
Industry payments (Open Payments)
- 2025$57.35 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $57.35 | 3 |
What the 2025 payments were for
- Food and Beverage$57.35 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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