CHUN XIAO HSU MD
NPI 1669597746
Internal Medicine - Gastroenterology in Torrance, CA

Active since March 20, 2007PECOS EnrolledAccepts Medicare Assignment
23451 MADISON ST STE 290, TORRANCE, CA 90505(310) 375-1246(310) 375-0981 Get Directions Write a Review

NPPES record last updated: September 26, 2024. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 26, 2024, Sep 25, 2019, Feb 8, 2019 (3 updates tracked since 2019).

About Chun Xiao Hsu Md NPPES

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

CHUN XIAO HSU MD (NPI 1669597746) is an individual gastroenterology provider in Torrance, California, licensed in California (C159011) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2001).

NPPES Registry Identity

NPI1669597746
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameCHUN XIAO HSUCredential: MD
Location Address23451 MADISON ST STE 290Torrance, CA 90505-4737
Mailing Address23451 Madison St Ste 290Torrance, CA 90505-4737 · (310) 375-1246 · Fax (310) 375-0981
Fax(310) 375-0981
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2001
Enumeration DateMarch 20, 2007
Last NPPES UpdateSeptember 26, 20243 updates tracked since enumeration
NPPES CertifiedSeptember 26, 2024
NPI 1669597746 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in CA · C159011
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

23451 MADISON ST STE 290, Torrance, CA 90505

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

Chun Xiao Hsu 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 ID1355440884
PECOS Enrollment IDI20190114001097
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 8

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
104 services44 patients
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.
66 services31 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
54 services54 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
48 services37 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
45 services45 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90505 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.

Other Providers at the Same Location NPPES 17

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

Internal Medicine (Gastroenterology)
23451 MADISON ST STE 290
TORRANCE, CA 90505
Internal Medicine (Gastroenterology)
23451 MADISON ST STE 290
TORRANCE, CA 90505
Internal Medicine (Gastroenterology)
23451 MADISON ST STE 290
TORRANCE, CA 90505
Internal Medicine (Gastroenterology)
23451 MADISON ST STE 290
TORRANCE, CA 90505
Internal Medicine (Gastroenterology)
23451 MADISON ST STE 290
TORRANCE, CA 90505
Internal Medicine (Gastroenterology)
23451 MADISON ST STE 290
TORRANCE, CA 90505
Nurse Practitioner
23451 MADISON ST STE 290
TORRANCE, CA 90505
Physician Assistant
23451 MADISON ST STE 290
TORRANCE, CA 90505

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 Chun Hsu's NPI number?

The NPI number for Chun Hsu is 1669597746. It was assigned to this individual provider in the NPPES registry on March 20, 2007.

Where is Chun Hsu located?

Chun Hsu practices at 23451 Madison St Ste 290, Torrance, CA 90505. The listed phone number is (310) 375-1246.

What is Chun Hsu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Chun Hsu enrolled in Medicare?

Yes. Chun Hsu 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 Chun Hsu was last updated on September 26, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.