David R. Riker, MD
NPI 1164405528ActiveIndividual· Internal Medicine, Pulmonary Disease· San Diego, CA
Internal Medicine, Pulmonary Disease (MD) in San Diego, California, trained at Michigan State University College of Human Medicine (class of 1999). 245 Medicare patients in 2024, $562,066 paid; nearly all of their 585 Part D prescriptions were generic (93%). Cook Incorporated reported $5,460 in payments in 2025, mostly speaking and faculty fees.
Overview
| NPI | 1164405528 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 21, 2005 |
| Last updated in NPPES | May 21, 2026 |
| Certified by provider | May 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | C53916 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | C53916 | CA |
| Internal Medicine | 207R00000X | C53916 | 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 245 |
|---|---|
| Services billed | 5,923 across 38 procedure codes |
| Paid by Medicare | $562,066 |
Part D prescriptions in 2024
| Prescriptions (claims) | 585 · 585 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $27,467 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
Medical groups
- On Call Specialists Medical Group of San Diego IncSan Diego, CA · 144 clinicians
- Nr Medical AssociatesSan Diego, CA · 7 clinicians
Hospital affiliations
- Grossmont HospitalLa Mesa, CA
- Palomar Health Downtown CampusEscondido, CA
- Scripps Memorial Hospital la JollaLa Jolla, CA
- Scripps Mercy HospitalSan Diego, CA
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Other facilities
- Kindred Hospital - San DiegoLong-term care hospital · San Diego, CA
- Select Specialty Hospital - San DiegoLong-term care hospital · San Diego, CA
Industry payments (Open Payments)
- 2025$5,460 · 1 payment from 1 company
- 2024$3,956 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cook Incorporated | $5,460 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$5,460 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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