Nicholas Withrow Greco, M.D.
NPI 1023325289ActiveIndividual· Emergency Medicine· Pasadena, CA
Emergency Medicine (M.D.) with Exer Medical Corporation and 1 other group, practicing in Pasadena, California. 542 Medicare patients in 2024, $68,620 paid; nearly all of their 379 Part D prescriptions were generic (92%). Axsome Therapeutics, Inc. reported $30.03 in payments in 2025, mostly food and beverage. Lists Huntington Hospital as a hospital affiliation.
Overview
| NPI | 1023325289 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 9, 2010 |
| Last updated in NPPES | Aug 21, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A113953 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 542 |
|---|---|
| Services billed | 899 across 58 procedure codes |
| Paid by Medicare | $68,620 |
Part D prescriptions in 2024
| Prescriptions (claims) | 379 · 399 30-day fills |
|---|---|
| Patients | 206 |
| Total drug cost | $12,972 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Exer Medical CorporationHighland, CA · 340 clinicians
- Hmh Emergency Medical Group, Inc.Pasadena, CA · 60 clinicians
Hospital affiliation
- Huntington HospitalPasadena, CA
Industry payments (Open Payments)
- 2025$30.03 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Axsome Therapeutics, Inc. | $30.03 | 1 |
What the 2025 payments were for
- Food and Beverage$30.03 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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