Ronald G. Dulos, MD
NPI 1821063710ActiveIndividual· Internal Medicine· Riverside, CA
Internal Medicine (MD) in Riverside, California, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,305,327 for 14,511 claims, against $73,053 paid for services in 2024. Dexcom, Inc. was the largest of 2 companies reporting payments in 2025, $31.12 in all, mostly food and beverage.
Overview
| NPI | 1821063710 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 22, 2006 |
| Last updated in NPPES | Apr 11, 2025 |
| Certified by provider | Apr 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A87602 | 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 | 235 |
|---|---|
| Services billed | 4,971 across 36 procedure codes |
| Paid by Medicare | $73,053 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,511 · 34,529 30-day fills |
|---|---|
| Patients | 989 |
| Total drug cost | $1,305,327 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Riverside Medical Clinic IncRiverside, CA · 173 clinicians
Other facilities
- Destiny Hospice Care IncHospice · Moreno Valley, CA
Industry payments (Open Payments)
- 2025$31.12 · 2 payments from 2 companies
- 2024$119.98 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $16.20 | 1 |
| Abbott Laboratories | $14.92 | 1 |
What the 2025 payments were for
- Food and Beverage$31.12 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 246 internal medicine physicians in Riverside · All internal medicine physicians in California