Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Kioumars Bolourian Kashi, MD

Individual provider Internal Medicine Physician · NPI 1851700132

Dr. Kioumars Bolourian Kashi, MD practises Internal Medicine in Tarzana, California. Qualified in 2002, 24 years ago. Practices with Inpatient Specialists of California PC, a 364-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Licensed in
CA
In the registry since
2014
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

18321 Clark St
Tarzana, CA 91356-3501
Phone: (818) 823-8911
Fax: (310) 423-8441
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1600 N Rose Ave, Oxnard, CA 93030-3722 — (805) 988-2505

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A150087 (CA)

Record details

NPI number1851700132
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2014
Last updated in NPPESAugust 12, 2025
Certification dateAugust 12, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Inpatient Specialists Of California Pc — 364 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients320
Services billed 936 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Inpatient Specialists of California PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 364 clinicians in the practice; 12 are shown here.

Other providers in Tarzana