Siamak Karimian, M.D.
NPI 1225091812ActiveIndividual· Internal Medicine, Interventional Cardiology· Sherman Oaks, CA
Internal Medicine, Interventional Cardiology (M.D.) with Catholic Health Initiatives Colorado and 10 other groups, practicing in Sherman Oaks, California. Mostly services rather than prescriptions: Medicare paid $25,413 for 624 patients in 2024, with only 34 Part D claims. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 2 companies reporting payments in 2024, $43.91 in all, mostly food and beverage. Lists Adventist Health Sonora and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1225091812 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 6, 2006 |
| Last updated in NPPES | Aug 25, 2026 |
| Certified by provider | Aug 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 70710 | WI |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | DR.0058543 | CO |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 43360 | MT |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 9596121-1205 | UT |
| Internal Medicine | 207R00000X | 9596121-1205 | UT |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 48201 | KY |
| Internal Medicine, Interventional Cardiology | 207RI0011X | M-15992 | ID |
| Internal Medicine, Interventional Cardiology | 207RI0011X | DR.0058543 | CO |
| Specialist | 174400000X | A48218 | CA |
| Internal Medicine, Interventional Cardiology | 207RI0011X | MD184976 | PA |
| Internal Medicine, Interventional Cardiology | 207RI0011X | MD184976 | OR |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 55914 | TN |
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 - Interventional Cardiology (AK); Practitioner - Interventional Cardiology (AZ); Practitioner - Cardiovascular Disease (Cardiology) (CA); Practitioner - Interventional Cardiology (CO); Practitioner - Interventional Cardiology (GA); Practitioner - Interventional Cardiology (HI); Practitioner - Diagnostic Radiology (ID); Practitioner - Cardiovascular Disease (Cardiology) (IL); Practitioner - Interventional Cardiology (KY); Practitioner - Interventional Radiology (MI); Practitioner - Cardiovascular Disease (Cardiology) (MN); Practitioner - Cardiovascular Disease (Cardiology) (MO); Practitioner - Diagnostic Radiology (NC); Practitioner - Interventional Cardiology (NC); Practitioner - Cardiovascular Disease (Cardiology) (ND); Practitioner - Cardiovascular Disease (Cardiology) (NM); Practitioner - Diagnostic Radiology (OH); Practitioner - Interventional Cardiology (OR); Practitioner - Diagnostic Radiology (PA); Practitioner - Interventional Cardiology (TN); Practitioner - Internal Medicine (TX); Practitioner - Interventional Cardiology (UT); Practitioner - Diagnostic Radiology (VA); Practitioner - Diagnostic Radiology (WA); Practitioner - Interventional Cardiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 624 |
|---|---|
| Services billed | 931 across 20 procedure codes |
| Paid by Medicare | $25,413 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34 · 54 30-day fills |
|---|---|
| Total drug cost | $3,169 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Interventional Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical groups
- Catholic Health Initiatives ColoradoLakewood, CO · 1,225 clinicians
- Providence Health and Services - WashingtonWalla Walla, WA · 270 clinicians
- Dlp Marquette Physician Practices IncMarquette, MI · 197 clinicians
- Sonora Community HospitalSonora, CA · 133 clinicians
- Watauga Medical Center IncBoone, NC · 96 clinicians
- Reono Bertagnolli A Medical GroupMontgomery, AL · 47 clinicians
- Kan-Di-Ki LLCHorsham, PA · 38 clinicians
- Mat-Su Valley III LLCPalmer, AK · 28 clinicians
- Chas Physician Services LLCColumbia, MO · 25 clinicians
- Symphony Diagnostic Services No 1 LLCOceanside, CA · 20 clinicians
- American Diagnostics Services LLCOceanside, CA · 15 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Boone Hospital CenterColumbia, MO
- Mat-Su Regional Medical CenterPalmer, AK
- Providence St Mary Medical CenterWalla Walla, WA
- Uphs Marquette Dlp HospitalMarquette, MI
Industry payments (Open Payments)
- 2024$43.91 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $22.20 | 1 |
| Angiodynamics, Inc. | $21.71 | 1 |
What the 2024 payments were for
- Food and Beverage$43.91 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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