DR. KIOUMARS BOLOURIAN KASHI MD
NPI 1851700132
Internal Medicine in Tarzana, CA

Q: What is Kioumars Bolourian Kashi's NPI number?

The NPI number for Kioumars Bolourian Kashi is 1851700132. It was assigned to this individual provider in the NPPES registry on August 12, 2014.

Q: What is Kioumars Bolourian Kashi's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since August 12, 2014PECOS EnrolledAccepts Medicare Assignment

18321 CLARK ST, TARZANA, CA 91356(818) 823-8911(310) 423-8441 Get Directions Write a Review

NPPES record last updated: August 12, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 12, 2025, Sep 29, 2024 (2 updates tracked since 2024).

On this page

About Dr. Kioumars Bolourian Kashi Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KIOUMARS BOLOURIAN KASHI MD (NPI 1851700132) is an individual internal medicine provider in Tarzana, California, licensed in California (A150087) and active in the NPI registry since August 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in Oxnard, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1851700132

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. KIOUMARS BOLOURIAN KASHICredential: MD

Location Address18321 CLARK STTarzana, CA 91356-3501

Mailing Address4140 W 190th StTorrance, CA 90504-5513

Phone(818) 823-8911

Fax(310) 423-8441

Sole ProprietorNo

Medical School CMSOtherGraduated 2002

Enumeration DateAugust 12, 2014

Last NPPES UpdateAugust 12, 20252 updates tracked since enumeration

NPPES CertifiedAugust 12, 2025

✔ NPI 1851700132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A150087

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

18321 CLARK ST, Tarzana, CA 91356

Open in Google Maps ↗

Secondary Practice Location 1

Location 11600 N Rose AveOxnard, CA 93030-3722 · Phone (805) 988-2505 · Fax (805) 988-2502

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Kioumars Bolourian Kashi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5496083438

PECOS Enrollment IDI20190828003491

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Kioumars Bolourian Kashi reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hospital Medicine Of California Inc

6.1 mi

Hospitalist

7300 MEDICAL CENTER DR
West Hills, CA 91307

Reassigned Medicare billing, California enrollment
94 clinicians in this Medicare group

NPI 1770037236 (818) 712-4100

Kansal Inc

11 mi

Internal Medicine

8733 BEVERLY BLVD STE 306
West Hollywood, CA 90048

Reassigned Medicare billing, California enrollment
175 clinicians in this Medicare group

NPI 1043510183 (310) 388-6798

Cedars-Sinai Medical Care Foundation

11 mi

Anesthesiology

8700 BEVERLY BLVD STE SB-290
Los Angeles, CA 90048

Reassigned Medicare billing, California enrollment
2,118 clinicians in this Medicare group

NPI 1043826720 (310) 423-1447

Renal Consultants Of Ventura County, Inc

29 mi

Nephrology

2438 N PONDEROSA DR, SUITE # C-101
Camarillo, CA 93010

Reassigned Medicare billing, California enrollment
11 clinicians in this Medicare group

NPI 1932534021 (805) 383-9727

Inpatient Specialists Of California, PC

72 mi

Internal Medicine

2101 N WATERMAN AVE
San Bernardino, CA 92404

Reassigned Medicare billing, California enrollment
1,216 clinicians in this Medicare group

NPI 1952792475 (615) 377-5658

Hospitalist Medicine Physicians Of California, Inc

77 mi

Internal Medicine

18300 US HIGHWAY 18
Apple Valley, CA 92307

Reassigned Medicare billing, California enrollment
914 clinicians in this Medicare group

NPI 1184663965 (760) 946-4233

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

512 services183 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

151 services142 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

138 services73 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

103 services102 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91356 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers51 claims51 services$13.97 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers51 claims51 services$58.74 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JONATHAN ANDREW PRINCE M.D.

Emergency Medicine