ALEX TSAI DO
NPI 1114504321
Emergency Medicine in San Mateo, CA

Q: What is Alex Tsai's NPI number?

The NPI number for Alex Tsai is 1114504321. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Q: What is Alex Tsai'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 Alex Tsai was last updated on September 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 24, 2021PECOS EnrolledAccepts Medicare Assignment

222 W 39TH AVE, SAN MATEO, CA 94403(650) 573-2671 Get Directions Write a Review

NPPES record last updated: September 5, 2024. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 5, 2024, Mar 24, 2021 (2 updates tracked since 2021).

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About Alex Tsai Do NPPES

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

ALEX TSAI DO (NPI 1114504321) is an individual emergency medicine provider in San Mateo, California, licensed in California (20A21076) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (2021).

NPPES Registry Identity

NPI1114504321

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameALEX TSAICredential: DO

Location Address222 W 39TH AVESan Mateo, CA 94403-4364

Mailing Address222 W 39th AveSan Mateo, CA 94403-4364

Phone(650) 573-2671

Sole ProprietorNo

Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2021

Enumeration DateMarch 24, 2021

Last NPPES UpdateSeptember 5, 20242 updates tracked since enumeration

NPPES CertifiedSeptember 5, 2024

✔ NPI 1114504321 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in CA · 20A21076

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

222 W 39TH AVE, San Mateo, CA 94403

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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

Alex Tsai Do 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 ID42670911

PECOS Enrollment IDI20230724003689

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 2

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.

24 services24 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.

18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94403 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

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.

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