SEAN NEWSHA ERSHADI
NPI 1972007235
Radiology - Vascular & Interventional Radiology in Pasadena, CA

Active since March 21, 2018PECOS EnrolledAccepts Medicare Assignment
100 W CALIFORNIA BLVD, PASADENA, CA 91105(626) 397-5139 Get Directions Write a Review

NPPES record last updated: December 5, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Dec 5, 2025, Aug 23, 2023, Jun 7, 2023 and 1 more (4 updates tracked since 2018).

About Sean Newsha Ershadi NPPES

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

SEAN NEWSHA ERSHADI (NPI 1972007235) is an individual vascular & interventional radiology provider in Pasadena, California, licensed in California (1972007235) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (2018).

NPPES Registry Identity

NPI1972007235
Entity TypeIndividualMale
Primary Taxonomy2085R0204X
Provider Legal NameSEAN NEWSHA ERSHADI
Location Address100 W CALIFORNIA BLVDPasadena, CA 91105-3010
Mailing Address223 N 1st Ave Ste 101Arcadia, CA 91006-7027 · (626) 821-1411
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 2018
Enumeration DateMarch 21, 2018
Last NPPES UpdateDecember 5, 20254 updates tracked since enumeration
NPPES CertifiedDecember 5, 2025
✔ NPI 1972007235 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Vascular & Interventional RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0204X
License✔ Licensed in CA · 1972007235
Definition
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
100 W CALIFORNIA BLVD, Pasadena, CA 91105

Other Identifiers 1

Medicaid1972007235CA

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

Sean Newsha Ershadi 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 ID2062891088
PECOS Enrollment IDI20220622002303
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

14

Medicare enrollment records show Sean Ershadi reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Diagnostic Radiology
223 N 1ST AVE, SUITE 201
Arcadia, CA 91006
  • Reassigned Medicare billing, California enrollment
  • 61 clinicians in this Medicare group
Multi-Specialty
4650 SUNSET BLVD
Los Angeles, CA 90027
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
  • 1,281 clinicians in this Medicare group
Diagnostic Radiology
12401 WASHINGTON BLVD
Whittier, CA 90602
  • Reassigned Medicare billing, California enrollment
  • 84 clinicians in this Medicare group
Diagnostic Radiology
250 S GRAND AVE
Glendora, CA 91741
  • Reassigned Medicare billing, California enrollment
  • 109 clinicians in this Medicare group
Diagnostic Radiology
101 E VALENCIA MESA DR
Fullerton, CA 92835
  • Reassigned Medicare billing, California enrollment
  • 53 clinicians in this Medicare group
Diagnostic Radiology
12490 BUSINESS CENTER DR STE 200
Victorville, CA 92395
  • Reassigned Medicare billing, California enrollment
  • 71 clinicians in this Medicare group
Diagnostic Radiology
13010 HESPERIA RD
Victorville, CA 92395
  • Reassigned Medicare billing, California enrollment
  • 24 clinicians in this Medicare group
Family Medicine
720 PLEASANTON RD
San Antonio, TX 78214
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
Internal Medicine
8600 N STATE ROUTE 91
Peoria, IL 61615
  • Reassigned Medicare billing, California enrollment
  • 17 clinicians in this Medicare group
Internal Medicine
5600 BRAINERD RD, SUITE 500
Chattanooga, TN 37411
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group

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 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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
1,919 services19 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
85 services80 patients
Ct scan of abdomen and pelvis without contrast 74176
A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.
80 services76 patients
Ct scan of chest without contrast 71250
A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.
73 services72 patients
Ct scan of blood vessels of chest with contrast 71275
A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.
62 services62 patients
Complete ultrasound scan behind abdominal cavity 76770
A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.
56 services56 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91105 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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 20

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

Nurse Practitioner (Acute Care)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Registered Nurse (Registered Nurse First Assistant)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Radiology (Diagnostic Radiology)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Pain Medicine (Pain Medicine)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Rehabilitation Unit
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Hospitalist
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Emergency Medicine
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Internal Medicine
100 W CALIFORNIA BLVD
PASADENA, CA 91105

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 Sean Ershadi's NPI number?

The NPI number for Sean Ershadi is 1972007235. It was assigned to this individual provider in the NPPES registry on March 21, 2018.

Where is Sean Ershadi located?

Sean Ershadi practices at 100 W California Blvd, Pasadena, CA 91105. The listed phone number is (626) 397-5139.

What is Sean Ershadi's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

Is Sean Ershadi enrolled in Medicare?

Yes. Sean Ershadi 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 Sean Ershadi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Ershadi reassigns Medicare benefits to 14 organizations: Radiant Imaging, Inc. (Arcadia, CA), Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, CA), Lambert Radiology Medical Group, Inc (Whittier, CA), Menalam Health Services PC (Glendora, CA), St Jude Radiology Medical Group Inc (Fullerton, CA) and 9 more organizations, listed in the Medicare section above. 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 Sean Ershadi'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 Sean Ershadi was last updated on December 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.