STEPHEN YAU MD
NPI 1689037376
Internal Medicine - Cardiovascular Disease in Chula Vista, CA

Active since March 31, 2016PECOS EnrolledAccepts Medicare Assignment
429 BROADWAY, CHULA VISTA, CA 91910(619) 434-0204(619) 337-0191 Get Directions Write a Review

NPPES record last updated: June 21, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 17, 2022, Mar 31, 2016 (2 updates tracked since 2016).

About Stephen Yau Md NPPES

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

STEPHEN YAU MD (NPI 1689037376) is an individual cardiovascular disease provider in Chula Vista, California, licensed in California (151069) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2016).

NPPES Registry Identity

NPI1689037376
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameSTEPHEN YAUCredential: MD
Location Address429 BROADWAYChula Vista, CA 91910-4320
Mailing Address429 BroadwayChula Vista, CA 91910-4320 · (196) 434-0204 · Fax (619) 337-0191
Fax(619) 337-0191
Sole ProprietorNo
Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2016
Enumeration DateMarch 31, 2016
Last NPPES UpdateJune 21, 20222 updates tracked since enumeration
NPPES CertifiedJune 21, 2022
NPI 1689037376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in CA · 151069
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
429 BROADWAY, Chula Vista, CA 91910

Other Identifiers 1

MedicaidSY3232267556CA

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

Stephen Yau 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 ID9739429341
PECOS Enrollment IDI20220601001801
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 16

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 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.
590 services454 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
387 services335 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
213 services206 patients
Heart muscle strain imaging 93356
Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.
154 services148 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.
133 services133 patients
Nuclear medicine studies of heart muscle at rest and with stress and spect 78452
Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.
93 services92 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91910 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
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 4

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

Physician Assistant
429 BROADWAY
CHULA VISTA, CA 91910
Physician Assistant
429 BROADWAY
CHULA VISTA, CA 91910
Nurse Practitioner (Adult Health)
429 BROADWAY
CHULA VISTA, CA 91910
Physician Assistant
429 BROADWAY
CHULA VISTA, CA 91910

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 Stephen Yau's NPI number?

The NPI number for Stephen Yau is 1689037376. It was assigned to this individual provider in the NPPES registry on March 31, 2016.

Where is Stephen Yau located?

Stephen Yau practices at 429 Broadway, Chula Vista, CA 91910. The listed phone number is (619) 434-0204.

What is Stephen Yau's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Stephen Yau enrolled in Medicare?

Yes. Stephen Yau 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 Stephen Yau was last updated on June 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.