Megan Elise Guy, MD
NPI 1215424502ActiveIndividual· Emergency Medicine· Orange, CA
Emergency Medicine (MD) with Regents of the University of and 1 other group, practicing in Orange, California. 302 Medicare patients in 2024, $46,014 paid; nearly all of their 59 Part D prescriptions were generic (93%). Mindray Ds USA, Inc. was the largest of 2 companies reporting payments in 2025, $334.32 in all, mostly food and beverage. Lists Catalina Island Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1215424502 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 23, 2018 |
| Last updated in NPPES | Jan 17, 2023 |
| Certified by provider | Jan 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 173905 | 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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 302 |
|---|---|
| Services billed | 386 across 23 procedure codes |
| Paid by Medicare | $46,014 |
Part D prescriptions in 2024
| Prescriptions (claims) | 59 · 71 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $3,352 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Regents of the University ofOrange, CA · 129 clinicians
- Avalon Medical Development CorporationAvalon, CA · 30 clinicians
Hospital affiliations
- Catalina Island Medical CenterAvalon, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$334.32 · 3 payments from 2 companies
- 2024$887.67 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mindray Ds USA, Inc. | $219.46 | 2 |
| Ceribell, Inc. | $114.86 | 1 |
What the 2025 payments were for
- Food and Beverage$334.32 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 181 emergency medicine physicians in Orange · All emergency medicine physicians in California