Maximo Christian Diamond, M.D.
NPI 1063519932ActiveIndividual· Internal Medicine· Orange, CA
Internal Medicine (M.D.) in Orange, California, trained at University of California, Irvine, California College of Medicine (class of 1991). Part D covered 1,255 prescriptions written in 2024, 77% of them generic.
Overview
| NPI | 1063519932 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Mar 27, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G74989 | 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 - Internal Medicine (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 1,255 · 1,335 30-day fills |
|---|---|
| Patients | 228 |
| Total drug cost | $98,943 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospice/Palliative Care, Hospitalist |
Medical group
- Supportive Wound Care IncUpland, CA · 2 clinicians
Other facilities
- Haven HealthcareHome health agency · Signal Hill, CA
- Haven HealthHospice · Signal Hill, CA
- Haven Health NorthHospice · Signal Hill, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 224 internal medicine physicians in Orange · All internal medicine physicians in California