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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TRACEY LIU MD
NPI 1639639693
Internal Medicine - Pulmonary Disease in Pleasanton, CA

Active since March 24, 2019PECOS Enrolled
5565 W LAS POSITAS BLVD STE 320B, PLEASANTON, CA 94588(650) 725-7061 Get Directions Write a Review

NPPES record last updated: September 9, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 9, 2026, Jul 11, 2026, Mar 24, 2019 (3 updates tracked since 2019).

About Tracey Liu Md NPPES

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

TRACEY LIU MD (NPI 1639639693) is an individual pulmonary disease provider in Pleasanton, California, licensed in California (186943) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (2019).

NPPES Registry Identity

NPI1639639693
Entity TypeIndividualFemale
Primary Taxonomy207RP1001X
Provider Legal NameTRACEY LIUCredential: MD
Location Address5565 W LAS POSITAS BLVD STE 320BPleasanton, CA 94588-4001
Mailing Address5565 W Las Positas Blvd Ste 320bPleasanton, CA 94588-4001 · (650) 725-7061
Phone(650) 725-7061
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2019
Enumeration DateMarch 24, 2019
Last NPPES UpdateSeptember 9, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2026
✔ NPI 1639639693 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CA · 186943
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A186943 (CA)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 186943 (CA)
Also ListedInternal Medicine · Hospice and Palliative MedicineTaxonomy 207RH0002X · License 186943 (CA)
5565 W LAS POSITAS BLVD STE 320B, Pleasanton, CA 94588
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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 (PECOS)

Tracey Liu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466918958
PECOS Enrollment IDI20260724003594
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94588 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.

Other Providers at the Same Location NPPES 3

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

CONNIE TANG SINGH MD
Internal Medicine (Sleep Medicine)
5565 W LAS POSITAS BLVD STE 320B
PLEASANTON, CA 94588
Alameda County (925) 416-3500
TANWE CHANDRASHEKHAR SHENDE MD
Internal Medicine (Pulmonary Disease)
5565 W LAS POSITAS BLVD STE 320B
PLEASANTON, CA 94588
Alameda County (650) 725-7061
VEENA HARI DRONAMRAJU MD
Internal Medicine (Pulmonary Disease)
5565 W LAS POSITAS BLVD STE 320B
PLEASANTON, CA 94588
Alameda County (650) 725-7061

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 Tracey Liu's NPI number?

The NPI number for Tracey Liu is 1639639693. It was assigned to this individual provider in the NPPES registry on March 24, 2019.

Where is Tracey Liu located?

Tracey Liu practices at 5565 W Las Positas Blvd Ste 320B, Pleasanton, CA 94588. The listed phone number is (650) 725-7061.

What is Tracey Liu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Tracey Liu enrolled in Medicare?

Yes. Tracey Liu is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Tracey Liu was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.