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MICHELLE HIROMI SIU
NPI 1154815884
Physician Assistant in Hawthorne, CA

Active since June 16, 2018PECOS EnrolledAccepts Medicare Assignment
2301 W EL SEGUNDO BLVD, HAWTHORNE, CA 90250(323) 757-2118 Get Directions Write a Review

NPPES record last updated: March 29, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 29, 2021, Jun 16, 2018 (2 updates tracked since 2018).

About Michelle Hiromi Siu NPPES

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

MICHELLE HIROMI SIU (NPI 1154815884) is an individual physician assistant in Hawthorne, California, licensed in California (55382) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1154815884
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMICHELLE HIROMI SIU
Location Address2301 W EL SEGUNDO BLVDHawthorne, CA 90250-3315
Mailing Address2301 W El Segundo BlvdHawthorne, CA 90250-3315
Phone(323) 757-2118
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJune 16, 2018
Last NPPES UpdateMarch 29, 20212 updates tracked since enumeration
NPPES CertifiedMarch 29, 2021
✔ NPI 1154815884 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · 55382
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2301 W EL SEGUNDO BLVD, Hawthorne, CA 90250
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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

Michelle Hiromi Siu 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 ID1456851070
PECOS Enrollment IDI20250826004437
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90250 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 7

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

DR. STEPHAN T HONDA M.D.
Family Medicine (Adult Medicine)
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 757-2118
DANNYLYN JOY KWAK
Physical Therapist
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 757-2118
DR. STEVEN JAMES BROWNING D.C.
Chiropractor
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 779-7996
MR. TRENTON HONDA PA-C
Physician Assistant
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 757-2118
DR. RHONDA BETH INFANTE DNP, APRN, FNP-BC
Nurse Practitioner (Family)
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 757-2118
KATHERINE MIE BRECHTELSBAUER PA-C
Physician Assistant
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 757-2118
STEPHAN T. HONDA, MD INC
Clinic/Center (Health Service)
2301 W EL SEGUNDO BLVD
HAWTHORNE, CA 90250
Los Angeles County (323) 757-2118

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 Michelle Siu's NPI number?

The NPI number for Michelle Siu is 1154815884. It was assigned to this individual provider in the NPPES registry on June 16, 2018.

Where is Michelle Siu located?

Michelle Siu practices at 2301 W El Segundo Blvd, Hawthorne, CA 90250. The listed phone number is (323) 757-2118.

What is Michelle Siu's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Michelle Siu enrolled in Medicare?

Yes. Michelle Siu 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 Michelle Siu was last updated on March 29, 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.