SIAVOSH VAKILIAN MD
NPI 1427456151
Radiology - Radiation Oncology in San Diego, CA

Active since December 11, 2014PECOS EnrolledAccepts Medicare Assignment
3366 5TH AVE, SAN DIEGO, CA 92103(619) 230-0400(858) 429-7936 Get Directions Write a Review

NPPES record last updated: June 1, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 1, 2021, Mar 9, 2018 (2 updates tracked since 2018).

About Siavosh Vakilian Md NPPES

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

SIAVOSH VAKILIAN MD (NPI 1427456151) is an individual radiation oncology provider in San Diego, California, licensed in California (A133482) and active in the NPI registry since December 2014. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1427456151
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameSIAVOSH VAKILIANCredential: MD
Location Address3366 5TH AVESan Diego, CA 92103-5713
Mailing AddressPo Box 845996Los Angeles, CA 90084-3592 · (858) 888-7700 · Fax (858) 221-5036
Fax(858) 429-7936
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateDecember 11, 2014
Last NPPES UpdateJune 1, 20212 updates tracked since enumeration
NPPES CertifiedJune 1, 2021
NPI 1427456151 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License Licensed in CA · A133482
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
3366 5TH AVE, San Diego, CA 92103

Secondary Practice Locations 3

Location 11410 S La Brucherie RdEl Centro, CA 92243-9676 · Phone (760) 339-5620 · Fax (760) 339-5621
Location 2701 E Grand Ave Ste 200Escondido, CA 92025-4466 · Phone (760) 839-7370 · Fax (858) 429-7938
Location 35395 Ruffin Rd Ste 103San Diego, CA 92123-1338 · Phone (858) 505-4100 · Fax (858) 429-7939

Other Identifiers 1

OtherCB366085CA · Medicare Pin

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Siavosh Vakilian 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 ID7113240482
PECOS Enrollment IDI20141218001208
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.

Areas of Expertise CMS Part B claims 23

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.

Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
418 services35 patients
Ct guidance for insertion of radiation therapy fields 77014
CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.
390 services37 patients
Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session G6015
Intensity-modulated radiation therapy (IMRT) is a type of cancer treatment. It uses advanced technology to manipulate photon beams of radiation to conform to the shape of a tumor. IMRT allows for the radiation dose to conform more precisely to the three-dimensional shape of the tumor by modulating—or controlling—the intensity of the radiation beam. This can result in better tumor control and less harm to healthy tissue.
390 services35 patients
Design and construction of complex radiation treatment device 77334
The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.
241 services52 patients
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280
This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.
133 services88 patients
Image-guided robotic linear accelerator-based stereotactic radiosurgery, delivery including collimator changes and custom plugging, fractionated treatment, all lesions, per session, second through fifth sessions, maximum five sessions per course of treatme G0340
This treatment uses high-precision radiation, guided by real-time imaging, to target tumors. A robotic linear accelerator shapes the radiation to match the tumor, reducing harm to healthy tissue. The treatment is spread over 2-5 sessions and is limited to 5 sessions per course.
108 services76 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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
$184.71 typical visit price
range $62.10 – $184.71
Typical copayment $46.17 (range $15.52 – $46.17)
Most-billed visit code 99205
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
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.

Other Providers at the Same Location NPPES 3

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

Radiology (Radiation Oncology)
3366 5TH AVE
SAN DIEGO, CA 92103
Radiology (Radiation Oncology)
3366 5TH AVE
SAN DIEGO, CA 92103
Radiology (Radiation Oncology)
3366 5TH AVE
SAN DIEGO, CA 92103

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 Siavosh Vakilian's NPI number?

The NPI number for Siavosh Vakilian is 1427456151. It was assigned to this individual provider in the NPPES registry on December 11, 2014.

Where is Siavosh Vakilian located?

Siavosh Vakilian practices at 3366 5th Ave, San Diego, CA 92103. The listed phone number is (619) 230-0400.

What is Siavosh Vakilian's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Siavosh Vakilian enrolled in Medicare?

Yes. Siavosh Vakilian 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.

When was this NPI record last updated?

The NPPES record for Siavosh Vakilian was last updated on June 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.