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ANDY CHIA-WEI HSI M.D.
NPI 1366832032
Pathology - Anatomic Pathology & Clinical Pathology in Placentia, CA

Active since February 02, 2015PECOS EnrolledAccepts Medicare Assignment
77.86/100
CMS Quality Rating
1041 E YORBA LINDA BLVD STE 304, PLACENTIA, CA 92870(714) 924-7240(714) 924-7247 Get Directions Write a Review

NPPES record last updated: June 2, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 2, 2026, Jun 11, 2021 (2 updates tracked since 2021).

About Andy Chia-wei Hsi M.d. NPPES

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

ANDY CHIA-WEI HSI M.D. (NPI 1366832032) is an individual anatomic pathology & clinical pathology provider in Placentia, California, licensed in California (A149487) and active in the NPI registry since February 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Addison, and is a graduate of Baylor College Of Medicine (2012).

NPPES Registry Identity

NPI1366832032
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameANDY CHIA-WEI HSICredential: M.D.
Location Address1041 E YORBA LINDA BLVD STE 304Placentia, CA 92870-3751
Mailing Address9900 N Central Expy Ste 500Dallas, TX 75231-0928 · (214) 987-3376 · Fax (469) 532-0273
Phone(714) 924-7240
Fax(714) 924-7247
Sole ProprietorNo
Medical School CMSBaylor College Of MedicineGraduated 2012
Enumeration DateFebruary 2, 2015
Last NPPES UpdateJune 2, 20262 updates tracked since enumeration
NPPES CertifiedJune 2, 2026
✔ NPI 1366832032 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Licenses✔ Licensed in CA · A149487✔ Licensed in TX · V2104
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
1041 E YORBA LINDA BLVD STE 304, Placentia, CA 92870
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Secondary Practice Location 1

Location 14951 Airport Pkwy Ste 590Addison, TX 75001-6642 · Phone (214) 987-3376 · Fax (469) 532-0273

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

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

Andy Chia-wei Hsi 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 ID9335417450
PECOS Enrollment IDI20170614001302, I20250530003137
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 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.

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.
12,966 services7,952 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
1,466 services1,245 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
1,284 services712 patients
Pathology examination of tissue using a microscope, moderately low complexity 88304
A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.
613 services590 patients
Special stained specimen slides to identify organisms including interpretation and report 88312
This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.
450 services364 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
17 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92870 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.86/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality58.05
Promoting Interoperability93
Improvement Activities40
Cost73.99

Other Providers at the Same Location NPPES

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

DR. AMY YI PEI YANG M.D.
Pathology (Anatomic Pathology)
1041 E YORBA LINDA BLVD STE 304
PLACENTIA, CA 92870
Orange County (714) 924-7240

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 Andy Hsi's NPI number?

The NPI number for Andy Hsi is 1366832032. It was assigned to this individual provider in the NPPES registry on February 2, 2015.

Where is Andy Hsi located?

Andy Hsi practices at 1041 E Yorba Linda Blvd Ste 304, Placentia, CA 92870. The listed phone number is (714) 924-7240.

What is Andy Hsi's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Andy Hsi enrolled in Medicare?

Yes. Andy Hsi 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.

What insurance does Andy Hsi accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 4 other insurers list Andy Hsi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Andy Hsi was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.