WEYJUIN ERIC CHAO M.D.
NPI 1154852218
Emergency Medicine in South El Monte, CA

Q: What is Weyjuin Chao's NPI number?

The NPI number for Weyjuin Chao is 1154852218. It was assigned to this individual provider in the NPPES registry on March 21, 2017.

Q: What is Weyjuin Chao's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Weyjuin Chao was last updated on July 6, 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.

Active since March 21, 2017PECOS EnrolledAccepts Medicare Assignment

85.18/100

CMS Quality Rating

1701 SANTA ANITA AVE, SOUTH EL MONTE, CA 91733(626) 579-7777 Get Directions Write a Review

NPPES record last updated: July 6, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 6, 2021, Mar 21, 2017 (2 updates tracked since 2017).

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About Weyjuin Eric Chao M.d. NPPES

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

WEYJUIN ERIC CHAO M.D. (NPI 1154852218) is an individual emergency medicine provider in South El Monte, California, licensed in California (A172222) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of New York University School Of Medicine (2017).

NPPES Registry Identity

NPI1154852218

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameWEYJUIN ERIC CHAOCredential: M.D.

Location Address1701 SANTA ANITA AVESouth El Monte, CA 91733-3411

Mailing Address1 Gustave L Levy Pl, Box 1149New York, NY 10029-6504 · (212) 824-8069

Phone(626) 579-7777

Sole ProprietorYes

Medical School CMSNew York University School Of MedicineGraduated 2017

Enumeration DateMarch 21, 2017

Last NPPES UpdateJuly 6, 20212 updates tracked since enumeration

NPPES CertifiedJuly 6, 2021

✔ NPI 1154852218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in CA · A172222

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

1701 SANTA ANITA AVE, South El Monte, CA 91733

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Secondary Practice Location 1

Location 11 Gustave L Levy Pl, Box 1149New York, NY 10029-6504 · Phone (212) 824-8069

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

Weyjuin Eric Chao 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 ID5294071338

PECOS Enrollment IDI20210713003181

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

162 services158 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

136 services124 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

71 services71 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

49 services49 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.

37 services36 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

26 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91733 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

$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.

85.18/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

71.81

Promoting Interoperability

Improvement Activities

Cost

64.54

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.

USHA GUPTA MD

Anesthesiology