Siamak Karimian, M.D.
Cardiovascular Disease (Cardiology) · Diagnostic Radiology · Internal Medicine · Interventional Cardiology · Interventional Radiology (CMS) · Sherman Oaks, CA
At a glance
4955 Van Nuys Blvd., Sherman Oaks, CA 91403-1827
Published activity: Coronary angioplasty and stenting · Pacemaker insertion or repair. View counts and coverage
NPPES record updated Aug 25, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
4955 Van Nuys Blvd. Suite 415Sherman Oaks, CA 91403-1827
Additional reported practice locations
1 Mercado St Ste 130Durango, CO 813017306
Phone: 9702471120
Fax: 9702471128
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 1980
- CMS specialties
- Cardiovascular Disease (Cardiology) · Diagnostic Radiology · Internal Medicine · Interventional Cardiology · Interventional Radiology
Practice groups
- American Diagnostics Services Llc
- Catholic Health Initiatives Colorado
- Chas Physician Services Llc
- Dlp Marquette Physician Practices Inc
- Kan-Di-Ki Llc
- Mat-Su Valley Iii Llc
- Providence Health And Services - Washington
- Reono Bertagnolli A Medical Group
- Sonora Community Hospital
- Symphony Diagnostic Services No 1 Llc
- Watauga Medical Center Inc
Reported hospital affiliations
- Adventist Health Sonora Sonora, CA
- Boone Hospital Center Columbia, MO
- Mat-Su Regional Medical Center Palmer, AK
- Providence St Mary Medical Center Walla Walla, WA
- Uphs Marquette Dlp Hospital Marquette, MI
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Coronary angioplasty and stenting | 1-10 |
| Pacemaker insertion or repair | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Cardiovascular Disease (Cardiology) · Diagnostic Radiology · Internal Medicine · Interventional Cardiology · Interventional Radiology (CMS)
- Taxonomy code
- 207RI0011X
- Enumeration date
- Apr 6, 2006
- Record updated
- Aug 25, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207RC0000X
License reported: DR.0058543 CO
207RI0011X
License reported: 43360 MT
207RI0011X
License reported: 9596121-1205 UT
207R00000X
License reported: 9596121-1205 UT
207RC0000X
License reported: 48201 KY
207RI0011X
License reported: M-15992 ID
207RI0011X
License reported: DR.0058543 CO
174400000X
License reported: A48218 CA
207RI0011X
License reported: MD184976 PA
207RI0011X · Primary
License reported: 70710 WI
207RI0011X
License reported: MD184976 OR
207RI0011X
License reported: 55914 TN
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
4955 Van Nuys Blvd.Suite 415
Sherman Oaks, CA 91403-1827
- Phone
- (818) 501-5686
- Fax
- (818) 501-6151
Mailing address
4955 VAN NUYS BLVD STE 415SHERMAN OAKS, CA 914031827
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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