Tyler Ronnfeldt, MD
NPI 1083134878ActiveIndividual· Emergency Medicine· Glendale, CA
Emergency Medicine (MD) with Usc Care Medical Group Inc and 1 other group, practicing in Glendale, California. 336 Medicare patients in 2024, $34,150 paid; nearly all of their 185 Part D prescriptions were generic (91%). Abbvie Inc. reported $20.22 in payments in 2025, mostly food and beverage. Lists Keck Hospital of Usc and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1083134878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 22, 2017 |
| Last updated in NPPES | Jul 8, 2026 |
| Certified by provider | Jul 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | C202338 | CA |
| Emergency Medicine | 207P00000X | MD231257 | OR |
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 - Emergency Medicine (CA); Practitioner - Emergency Medicine (NE); Practitioner - Emergency Medicine (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 336 |
|---|---|
| Services billed | 420 across 19 procedure codes |
| Paid by Medicare | $34,150 |
Part D prescriptions in 2024
| Prescriptions (claims) | 185 · 187 30-day fills |
|---|---|
| Patients | 137 |
| Total drug cost | $3,732 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
- Methodist Fremont HealthFremont, NE · 91 clinicians
Hospital affiliations
- Keck Hospital of UscLos Angeles, CA
- Methodist Fremont HealthFremont, NE
- Usc Verdugo Hills HospitalGlendale, CA
Industry payments (Open Payments)
- 2025$20.22 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $20.22 | 1 |
What the 2025 payments were for
- Food and Beverage$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 65 emergency medicine physicians in Glendale · All emergency medicine physicians in California