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DR. KENNETH TACK-KEN LEONG DO, MPH
NPI 1164788725
Student in an Organized Health Care Education/Training Program in Santa Clara, CA

Active since April 09, 2012PECOS Enrolled
700 LAWRENCE EXPY, INTERNAL MEDICINE RESIDENTS ROOM P3693, SANTA CLARA, CA 95051(408) 851-1000 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Kenneth Tack-ken Leong Do, Mph NPPES

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

DR. KENNETH TACK-KEN LEONG DO, MPH (NPI 1164788725) is an individual student in an organized health care education/training program in Santa Clara, California and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164788725
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameDR. KENNETH TACK-KEN LEONGCredential: DO, MPH
Location Address700 LAWRENCE EXPY, INTERNAL MEDICINE RESIDENTS ROOM P3693Santa Clara, CA 95051-5173
Mailing Address700 Lawrence Expy, Internal Medicine Residents Room P3693Santa Clara, CA 95051-5173 · (408) 851-1000
Phone(408) 851-1000
Sole ProprietorNo
Enumeration DateApril 9, 2012
Last NPPES UpdateDecember 15, 2021
✔ NPI 1164788725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
700 LAWRENCE EXPY, Santa Clara, CA 95051
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kenneth Tack-ken Leong Do, Mph 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.

Medicare Billing Reassignment

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

Permanente Medical Group Inc
3.7 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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

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.

HUI WU MD
Hospitalist
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 605-7333
REBEKAH LYNN KECK
Dietitian, Registered
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 475-7208
VALERIE ROBERSON RDN
Dietitian, Registered
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 851-1000
LAARNI OBIS YET RRT
Respiratory Therapist, Registered
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 851-7022
NETALI ADIEL
Doula
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 851-1000
DR. KHANH-LINH GUERRERO PHARM.D.
Pharmacist
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 851-7500
KRISTINE MAE MANGALINDAN M.D.
Student in an Organized Health Care Education/Training Program
700 LAWRENCE EXPY
SANTA CLARA, CA 95051
Santa Clara County (408) 851-1000
PATRICK NGUYEN PHARM.D.
Pharmacist
700 LAWRENCE EXPY, DEPT 301
SANTA CLARA, CA 95051
Santa Clara County (408) 851-7492

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 Kenneth Leong's NPI number?

The NPI number for Kenneth Leong is 1164788725. It was assigned to this individual provider in the NPPES registry on April 9, 2012.

Where is Kenneth Leong located?

Kenneth Leong practices at 700 Lawrence Expy Internal Medicine Residents Room P3693, Santa Clara, CA 95051. The listed phone number is (408) 851-1000.

What is Kenneth Leong's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Kenneth Leong enrolled in Medicare?

Yes. Kenneth Leong is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kenneth Leong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Leong reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Kenneth Leong'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 Kenneth Leong was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.