Marc Andrew Riedl, MD
NPI 1285654889ActiveIndividual· Allergy & Immunology· San Diego, CA
Allergy & Immunology (MD) in San Diego, California, trained at University of Chicago, Pritzker School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $15,241,439 for 1,009 claims, against $30,873 paid for services in 2024. Csl Behring was the largest of 14 companies reporting payments in 2025, $100,410 in all, mostly consulting fees.
Overview
| NPI | 1285654889 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Oct 18, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | A75551 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 160 |
|---|---|
| Services billed | 866 across 24 procedure codes |
| Paid by Medicare | $30,873 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,009 · 1,284 30-day fills |
|---|---|
| Patients | 118 |
| Total drug cost | $15,241,439 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of CaliforniaSan Diego, CA · 2,089 clinicians
Hospital affiliation
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Industry payments (Open Payments)
- 2025$100,410 · 85 payments from 14 companies
- 2024$113,814 · 72 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Csl Behring | $37,703 | 23 |
| Takeda Pharmaceuticals U.S.A., Inc. | $16,536 | 15 |
| Pharming Healthcare, Inc. | $9,380 | 10 |
| Ionis Pharmaceuticals, Inc. | $8,828 | 3 |
| Grifols USA, LLC | $8,168 | 5 |
What the 2025 payments were for
- Consulting Fee$49,967 · 15 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$38,047 · 15 payments
- Travel and Lodging$5,446 · 13 payments
- Honoraria$4,170 · 1 payment
- Food and Beverage$2,779 · 41 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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