Mark M. Boiskin, M.D.
NPI 1437154143ActiveIndividual· Internal Medicine, Nephrology· La Jolla, CA
Internal Medicine, Nephrology (M.D.) with Emergency and Acute Care Medical Corporation and 1 other group, practicing in La Jolla, California. Their prescriptions cost Medicare Part D more than their services did: $890,904 for 4,092 claims, against $179,257 paid for services in 2024. Ardelyx, Inc. was the largest of 6 companies reporting payments in 2025, $248.94 in all, mostly food and beverage. Lists Palomar Health Downtown Campus and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1437154143 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 17, 2005 |
| Last updated in NPPES | Aug 12, 2026 |
| Certified by provider | Aug 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A52055 | 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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 551 |
|---|---|
| Services billed | 2,678 across 21 procedure codes |
| Paid by Medicare | $179,257 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,092 · 7,901 30-day fills |
|---|---|
| Patients | 421 |
| Total drug cost | $890,904 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Emergency and Acute Care Medical CorporationLa Mesa, CA · 422 clinicians
- Balboa Nephrology Medical Group IncFountain Valley, CA · 76 clinicians
Hospital affiliations
- Palomar Health Downtown CampusEscondido, CA
- Scripps Memorial Hospital - EncinitasEncinitas, CA
- Scripps Memorial Hospital la JollaLa Jolla, CA
- Sharp Coronado Hospital and Hlthcr CtrCoronado, CA
- Sharp Memorial HospitalSan Diego, CA
Other facilities
- Fmcna Dialysis Services of RanchoDialysis facility · San Diego, CA
Industry payments (Open Payments)
- 2025$248.94 · 6 payments from 6 companies
- 2024$1,746 · 8 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $67.34 | 1 |
| Novartis Pharmaceuticals Corporation | $56.97 | 1 |
| Kyowa Kirin, Inc. | $50.00 | 1 |
| Nxstage Medical, Inc. | $42.98 | 1 |
| Calliditas Therapeutics US Inc. | $29.99 | 1 |
What the 2025 payments were for
- Food and Beverage$247.28 · 5 payments
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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