Diane Louise Schwarz, N.P.
NPI 1548558554ActiveIndividual· Nurse Practitioner, Adult Health· Newport Beach, CA
Nurse Practitioner, Adult Health (N.P.) with Kathy Karamlou MD Inc A Medical Corporation, practicing in Newport Beach, California. Their prescriptions cost Medicare Part D more than their services did: $728,892 for 782 claims, against $26,700 paid for services in 2024. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $636.68 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1548558554 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | N.P. |
| Sole proprietor | No |
| NPI issued | Jul 12, 2011 |
| Last updated in NPPES | Mar 23, 2021 |
| Certified by provider | Mar 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | 535639 | 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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 472 across 7 procedure codes |
| Paid by Medicare | $26,700 |
Part D prescriptions in 2024
| Prescriptions (claims) | 782 · 1,391 30-day fills |
|---|---|
| Patients | 150 |
| Total drug cost | $728,892 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Kathy Karamlou MD Inc A Medical CorporationNewport Beach, CA · 2 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$636.68 · 30 payments from 13 companies
- 2024$931.26 · 36 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $182.96 | 11 |
| Ucb, Inc. | $103.42 | 4 |
| Cardinal Health 110 LLC | $75.00 | 1 |
| Organon LLC | $50.36 | 3 |
| Amgen Inc. | $35.00 | 2 |
What the 2025 payments were for
- Food and Beverage$561.68 · 29 payments
- Consulting Fee$75.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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