Siamak P. Etehad, MD
NPI 1184728479ActiveIndividual· Internal Medicine· Northridge, CA
Internal Medicine (MD) in Northridge, California, licensed in CA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $3,964,667 for 24,976 claims, against $514,151 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $1,397 in all, mostly food and beverage. Lists Northridge Hospital Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1184728479 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 8, 2006 |
| Last updated in NPPES | Feb 20, 2026 |
| Certified by provider | Feb 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A43714 | 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 | 551 |
|---|---|
| Services billed | 7,518 across 47 procedure codes |
| Paid by Medicare | $514,151 |
Part D prescriptions in 2024
| Prescriptions (claims) | 24,976 · 36,347 30-day fills |
|---|---|
| Patients | 657 |
| Total drug cost | $3,964,667 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Northridge Hospital Medical CenterNorthridge, CA
- Providence Holy Cross Medical CenterMission Hills, CA
Other facilities
- A Flying Eagle Home HealthHome health agency · Simi Valley, CA
- American Ata Home Health Agency, IncHome health agency · Woodland Hills, CA
- California Healthcare ServicesHome health agency · Hawthorne, CA
- Pristine Home Health IncHome health agency · Burbank, CA
- Highland Hospice, IncHospice · Chatsworth, CA
- Hospice Care of the Valley IncHospice · Simi Valley, CA
- Casitas Care CenterNursing home · Granada Hills, CA
- The Gardens Healthcare CenterNursing home · Northridge, CA
Industry payments (Open Payments)
- 2025$1,397 · 54 payments from 15 companies
- 2024$3,227 · 65 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $562.01 | 23 |
| Astrazeneca Pharmaceuticals LP | $132.39 | 5 |
| Glaxosmithkline, LLC. | $119.40 | 4 |
| Aimmune Therapeutics, Inc. | $86.00 | 3 |
| Exact Sciences Corporation | $70.59 | 3 |
What the 2025 payments were for
- Food and Beverage$994.61 · 41 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$360.20 · 12 payments
- Education$42.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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