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DR. AMY YI PEI YANG M.D.
NPI 1427230523
Pathology - Anatomic Pathology in Placentia, CA

Active since November 29, 2007PECOS 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: March 21, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Amy Yi Pei Yang M.d. NPPES

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

DR. AMY YI PEI YANG M.D. (NPI 1427230523) is an individual anatomic pathology provider in Placentia, California, licensed in California (A133117) and active in the NPI registry since November 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1427230523
Entity TypeIndividualFemale
Primary Taxonomy207ZP0101X
Provider Legal NameDR. AMY YI PEI YANGCredential: M.D.
Location Address1041 E YORBA LINDA BLVD STE 304Placentia, CA 92870-3751
Mailing Address2285 Corporate Cir, Ste 200Henderson, NV 89074-7759 · (702) 360-2763 · Fax (949) 783-2880
Phone(714) 924-7240
Fax(714) 924-7247
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateNovember 29, 2007
Last NPPES UpdateMarch 21, 2016
✔ NPI 1427230523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPathology · Anatomic PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0101X
Licenses✔ Licensed in CA · A133117✔ Licensed in CO · 51160
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.
Also ListedDermatology · DermatopathologyTaxonomy 207ND0900X · License A133117 (CA)
1041 E YORBA LINDA BLVD STE 304, Placentia, CA 92870
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc, UnitedHealthcare.Insurance ›

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. Amy Yi Pei Yang 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 ID9638335227
PECOS Enrollment IDI20150622002376
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 Reassignment

Medicare enrollment records show Amy Yi Pei Yang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

J Robert West, M.D., Inc
19 mi
Dermatology
400 NEWPORT CENTER DR STE 702
Newport Beach, CA 92660
  • Reassigned Medicare billing, California and Nevada enrollments
  • Medicare enrollment name: J Robert West MD Inc
  • 121 clinicians in this Medicare group
NPI 1932154788 (949) 644-0101

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.

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.
7,153 services4,172 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.
482 services407 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.
286 services198 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.
219 services188 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.
189 services175 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.
27 services23 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.

ANDY CHIA-WEI HSI M.D.
Pathology (Anatomic Pathology & Clinical 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 Amy Yi Pei Yang's NPI number?

The NPI number for Amy Yi Pei Yang is 1427230523. It was assigned to this individual provider in the NPPES registry on November 29, 2007.

Where is Amy Yi Pei Yang located?

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

What is Amy Yi Pei Yang's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.

Is Amy Yi Pei Yang enrolled in Medicare?

Yes. Amy Yi Pei Yang 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 organization bills Medicare for Amy Yi Pei Yang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Amy Yi Pei Yang reassigns Medicare benefits to J Robert West, M.D., Inc (Newport Beach, CA). The 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 Amy Yi Pei Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Amy Yi Pei Yang accept?

Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and UnitedHealthcare list Amy Yi Pei Yang 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 Amy Yi Pei Yang was last updated on March 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.