IRVIN CHI-YANG LIEN MD
NPI 1124654272
Hospitalist in Redwood City, CA

Q: What is Irvin Lien's NPI number?

The NPI number for Irvin Lien is 1124654272. It was assigned to this individual provider in the NPPES registry on March 20, 2020.

Q: What is Irvin Lien's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Irvin Lien was last updated on July 2, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since March 20, 2020PECOS Enrolled

1100 VETERANS BLVD, REDWOOD CITY, CA 94063(650) 299-2000 Get Directions Write a Review

NPPES record last updated: July 2, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Irvin Chi-yang Lien Md NPPES

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

IRVIN CHI-YANG LIEN MD (NPI 1124654272) is an individual hospitalist provider in Redwood City, California, licensed in California (A180133) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124654272

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameIRVIN CHI-YANG LIENCredential: MD

Location Address1100 VETERANS BLVDRedwood City, CA 94063-2037

Mailing Address170 Gambier StSan Francisco, CA 94134-1023 · (206) 579-6591

Phone(650) 299-2000

Sole ProprietorNo

Enumeration DateMarch 20, 2020

Last NPPES UpdateJuly 2, 2023

NPPES CertifiedJuly 2, 2023

✔ NPI 1124654272 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · A180133

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

1100 VETERANS BLVD, Redwood City, CA 94063

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Irvin Chi-yang Lien Md 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

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94063 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

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.

Leave this field empty