DR. LEEWEN LIU M.D.
NPI 1114098415
Specialist in Saratoga, CA

Q: What is Leewen Liu's NPI number?

The NPI number for Leewen Liu is 1114098415. It was assigned to this individual provider in the NPPES registry on November 10, 2006.

Q: What is Leewen Liu's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Leewen Liu was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 November 10, 2006PECOS Enrolled

19040 COX AVE, SUITE 1, SARATOGA, CA 95070(408) 973-8861(408) 973-8858 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Leewen Liu M.d. NPPES

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

DR. LEEWEN LIU M.D. (NPI 1114098415) is an individual specialist in Saratoga, California, licensed in California (G080609) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (1993).

NPPES Registry Identity

NPI1114098415

Entity TypeIndividualFemale

Primary Taxonomy174400000X

Provider Legal NameDR. LEEWEN LIUCredential: M.D.

Location Address19040 COX AVE, SUITE 1Saratoga, CA 95070-6601

Mailing Address19040 Cox Ave, Suite 1Saratoga, CA 95070-6601 · (408) 973-8861 · Fax (408) 973-8858

Phone(408) 973-8861

Fax(408) 973-8858

Sole ProprietorYes

Medical School CMSRush Medical College Of Rush UniversityGraduated 1993

Enumeration DateNovember 10, 2006

Last NPPES UpdateJuly 9, 2007

✔ NPI 1114098415 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · G080609

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

19040 COX AVE, Saratoga, CA 95070

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Other Identifiers 1

Medicare UPINY06930CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Leewen Liu M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224938543

PECOS Enrollment IDI20040521000644

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.

Medicare Billing Reassignment

Medicare enrollment records show Leewen Liu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Leewen Liu.MD. Inc.

Same address

Internal Medicine

19040 COX AVE, SUITE 1
Saratoga, CA 95070

Reassigned Medicare billing, California enrollment

NPI 1548436868 (408) 973-8861

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

163 services67 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

36 services25 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

26 services26 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

24 services24 patients

Other Providers at the Same Location NPPES 2

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

LEEWEN LIU.MD. INC.

Internal Medicine

19040 COX AVE, SUITE 1
SARATOGA, CA 95070

Santa Clara County (408) 973-8861

DR. ALICE RUZICKA PH.D.

Psychologist (Clinical)

19040 COX AVE, SUITE 5
SARATOGA, CA 95070

Santa Clara County (408) 255-6872

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 Leewen Liu's NPI number?

The NPI number for Leewen Liu is 1114098415. It was assigned to this individual provider in the NPPES registry on November 10, 2006.

Where is Leewen Liu located?

Leewen Liu practices at 19040 Cox Ave Suite 1, Saratoga, CA 95070. The listed phone number is (408) 973-8861.

What is Leewen Liu's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Leewen Liu enrolled in Medicare?

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

Which organization bills Medicare for Leewen Liu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leewen Liu reassigns Medicare benefits to Leewen Liu.MD. Inc. (Saratoga, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leewen Liu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Leewen Liu was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.