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DR. YANG LIU M.D.
NPI 1033430913
Internal Medicine - Gastroenterology in Monterey Park, CA

Active since June 15, 2010PECOS EnrolledAccepts Medicare Assignment
120 W HELLMAN AVE STE 201, MONTEREY PARK, CA 91754(626) 280-3003 Get Directions Write a Review

NPPES record last updated: January 21, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Yang Liu M.d. NPPES

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

DR. YANG LIU M.D. (NPI 1033430913) is an individual gastroenterology provider in Monterey Park, California, licensed in California (173853) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (2010).

NPPES Registry Identity

NPI1033430913
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. YANG LIUCredential: M.D.
Location Address120 W HELLMAN AVE STE 201Monterey Park, CA 91754-1209
Mailing Address120 W Hellman Ave Ste 201Monterey Park, CA 91754-1209 · (626) 280-3003
Phone(626) 280-3003
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2010
Enumeration DateJune 15, 2010
Last NPPES UpdateJanuary 21, 2024
NPPES CertifiedJanuary 21, 2024
✔ NPI 1033430913 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in CA · 173853✔ Licensed in VA · 0101250846
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 0101250846 (VA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
120 W HELLMAN AVE STE 201, Monterey Park, CA 91754
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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

Dr. Yang Liu M.d. 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 ID7012238181
PECOS Enrollment IDI20220822000698
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 Yang Liu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Global Gastroenterology Group Inc
0.9 mi
Gastroenterology
500 N GARFIELD AVE STE 107
Monterey Park, CA 91754
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
NPI 1073020186 (626) 280-3003
University Of Texas Health Science Center At San Antonio
1,179 mi
Diagnostic Radiology
25753 OLD FREDERICKSBURG
Boerne, TX 78015
  • Reassigned Medicare billing, Texas enrollment
  • 2,397 clinicians in this Medicare group
NPI 1417921834 (210) 450-9000

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 6

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
102 services91 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
64 services64 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
63 services63 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.
62 services62 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.
61 services60 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.
41 services39 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91754 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.

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 Yang Liu's NPI number?

The NPI number for Yang Liu is 1033430913. It was assigned to this individual provider in the NPPES registry on June 15, 2010.

Where is Yang Liu located?

Yang Liu practices at 120 W Hellman Ave Ste 201, Monterey Park, CA 91754. The listed phone number is (626) 280-3003.

What is Yang Liu's specialty?

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

Is Yang Liu enrolled in Medicare?

Yes. Yang Liu 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 Yang Liu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yang Liu reassigns Medicare benefits to 2 organizations: Global Gastroenterology Group Inc (Monterey Park, CA) and University Of Texas Health Science Center At San Antonio (Boerne, TX). 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 Yang Liu'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 Yang Liu was last updated on January 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.