Reza Allamehzadeh, M.D
NPI 1467606053ActiveIndividual· Internal Medicine· Mission Viejo, CA
Internal Medicine (M.D) in Mission Viejo, California, licensed in CA, with an NPI issued in November 2008. Their prescriptions cost Medicare Part D more than their services did: $1,814,173 for 12,770 claims, against $628,792 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 3 companies reporting payments in 2025, $133.15 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1467606053 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Nov 9, 2008 |
| Last updated in NPPES | Aug 19, 2025 |
| Certified by provider | Aug 19, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A102735 | CA |
| Internal Medicine, Nephrology | 207RN0300X | A102735 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 484 |
|---|---|
| Services billed | 16,364 across 38 procedure codes |
| Paid by Medicare | $628,792 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,770 · 27,233 30-day fills |
|---|---|
| Patients | 586 |
| Total drug cost | $1,814,173 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
| Telehealth | Offers telehealth |
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
- Providence Mission HospitalMission Viejo, CA
Other facilities
- Bright Future Home Health, IncHome health agency · Woodland Hills, CA
- Care Plus Home HealthHome health agency · Laguna Hills, CA
- Hoag Home HealthHome health agency · Newport Beach, CA
- Noyan Home Health Care Inc.Home health agency · Glendale, CA
- Orange County Care Providers, IncHome health agency · Cerritos, CA
Industry payments (Open Payments)
- 2025$133.15 · 7 payments from 3 companies
- 2024$63.32 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $71.19 | 4 |
| Astrazeneca Pharmaceuticals LP | $44.91 | 2 |
| Sumitomo Pharma America, Inc. | $17.05 | 1 |
What the 2025 payments were for
- Food and Beverage$133.15 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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