Glenn Ehresmann, M.D.
NPI 1043248727ActiveIndividual· Internal Medicine, Rheumatology· Los Angeles, CA
Internal Medicine, Rheumatology (M.D.) in Los Angeles, California, trained at University of California, Irvine, California College of Medicine (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $3,401,824 for 7,022 claims, against $69,651 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 6 companies reporting payments in 2025, $19,901 in all, mostly speaking and faculty fees.
Overview
| NPI | 1043248727 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 29, 2006 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Oct 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | G27348 | 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 - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 347 |
|---|---|
| Services billed | 1,475 across 17 procedure codes |
| Paid by Medicare | $69,651 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,022 · 12,120 30-day fills |
|---|---|
| Patients | 332 |
| Total drug cost | $3,401,824 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1973 |
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Keck Hospital of UscLos Angeles, CA
- Usc Verdugo Hills HospitalGlendale, CA
Other facilities
- Rda Home Health Services, IncHome health agency · San Bernardino, CA
- V & V Home Health IncHome health agency · Glendale, CA
Industry payments (Open Payments)
- 2025$19,901 · 47 payments from 6 companies
- 2024$36,244 · 98 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $7,523 | 6 |
| Amgen Inc. | $6,092 | 10 |
| Abbvie Inc. | $2,974 | 5 |
| Janssen Biotech, Inc. | $2,753 | 5 |
| Glaxosmithkline, LLC. | $321.47 | 19 |
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$15,080 · 9 payments
- Consulting Fee$2,280 · 1 payment
- Food and Beverage$1,336 · 33 payments
- Travel and Lodging$1,205 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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