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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SIAVASH BOLOURANI
NPI 1497119960
Surgery - Surgical Oncology in Clovis, CA

Active since April 11, 2016PECOS EnrolledAccepts Medicare Assignment
782 N MEDICAL CENTER DR E STE 101, CLOVIS, CA 93611(559) 256-4111(559) 256-4113 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, May 27, 2025, Dec 17, 2024 (3 updates tracked since 2024).

About Siavash Bolourani NPPES

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

SIAVASH BOLOURANI (NPI 1497119960) is an individual surgical oncology provider in Clovis, California, licensed in California (A193634) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of R Franklin University Of Med & Sci/chicago Medical School (2016).

NPPES Registry Identity

NPI1497119960
Entity TypeIndividualMale
Primary Taxonomy2086X0206X
Provider Legal NameSIAVASH BOLOURANI
Location Address782 N MEDICAL CENTER DR E STE 101Clovis, CA 93611-6890
Mailing AddressPo Box 889442Los Angeles, CA 90088-9442 · (559) 603-7372 · Fax (559) 451-3661
Phone(559) 256-4111
Fax(559) 256-4113
Sole ProprietorNo
Medical School CMSR Franklin University Of Med & Sci/chicago Medical SchoolGraduated 2016
Enumeration DateApril 11, 2016
Last NPPES UpdateSeptember 3, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1497119960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Surgical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2086X0206X
License✔ Licensed in CA · A193634
Definition
A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.
Also ListedSurgeryTaxonomy 208600000X · License A193634 (CA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 000000000000 (NJ)
782 N MEDICAL CENTER DR E STE 101, Clovis, CA 93611
Open in Google Maps ↗

Secondary Practice Locations 2

Location 12121 Santa Monica BlvdSanta Monica, CA 90404-2303 · Phone (310) 315-6125 · Fax (310) 582-7185
Location 2100 Madison AveMorristown, NJ 07960-6136 · Phone (973) 971-5000

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

Siavash Bolourani 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 ID7719420751
PECOS Enrollment IDI20240619001296
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

2

Medicare enrollment records show Siavash Bolourani reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
172 mi
Health Maintenance Organization
43112 N 15TH ST
Lancaster, CA 93534
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1982863783 (661) 726-2279
Providence Saint Johns Medical Foundation
205 mi
Specialist
2121 SANTA MONICA BLVD
Santa Monica, CA 90404
  • Reassigned Medicare billing, California enrollment
  • 461 clinicians in this Medicare group
NPI 1770093734 (310) 582-7312

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93611 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
$176.60 typical visit price
range $58.87 – $176.60
Typical copayment $44.15 (range $14.71 – $44.15)
Most-billed visit code 99205
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Siavash Bolourani's NPI number?

The NPI number for Siavash Bolourani is 1497119960. It was assigned to this individual provider in the NPPES registry on April 11, 2016.

Where is Siavash Bolourani located?

Siavash Bolourani practices at 782 N Medical Center Dr E Ste 101, Clovis, CA 93611. The listed phone number is (559) 256-4111.

What is Siavash Bolourani's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.

Is Siavash Bolourani enrolled in Medicare?

Yes. Siavash Bolourani is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Siavash Bolourani's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Siavash Bolourani reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Lancaster, CA) and Providence Saint Johns Medical Foundation (Santa Monica, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Siavash Bolourani's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Siavash Bolourani was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.