WILLIAM SHYY M.D.
NPI 1013202274
Emergency Medicine in Santa Monica, CA

Q: What is William Shyy's NPI number?

The NPI number for William Shyy is 1013202274. It was assigned to this individual provider in the NPPES registry on June 16, 2011.

Q: What is William Shyy'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 William Shyy was last updated on January 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 June 16, 2011PECOS Enrolled

100/100

CMS Quality Rating

1250 16TH ST, SANTA MONICA, CA 90404(310) 794-7700 Get Directions Write a Review

NPPES record last updated: January 5, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 5, 2023, Jan 30, 2019 (2 updates tracked since 2019).

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About William Shyy M.d. NPPES

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

WILLIAM SHYY M.D. (NPI 1013202274) is an individual emergency medicine provider in Santa Monica, California, licensed in California (A130299) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1013202274

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameWILLIAM SHYYCredential: M.D.

Location Address1250 16TH STSanta Monica, CA 90404-1249

Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631

Phone(310) 794-7700

Sole ProprietorNo

Enumeration DateJune 16, 2011

Last NPPES UpdateJanuary 5, 20232 updates tracked since enumeration

NPPES CertifiedJanuary 5, 2023

✔ NPI 1013202274 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in CA · A130299✔ Licensed in IL · 125-059672

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.

1250 16TH ST, Santa Monica, CA 90404

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Secondary Practice Locations 2

Location 15841 S Maryland Ave, MC 5068Chicago, IL 60637-1447 · Phone (515) 451-2134

Location 2505 Parnassus AveSan Francisco, CA 94143-2204 · Phone (415) 476-1000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Shyy M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 5

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.

284 services277 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.

178 services174 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

43 services43 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.

43 services43 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90404 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.

100/100

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

Scored as part of a group practice

Quality

95.72

Promoting Interoperability

100

Improvement Activities

Cost

81.58

Other Providers at the Same Location NPPES 20

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

ISABELLA JUSAY NP

Nurse Practitioner