ONNA LAU MD
NPI 1609372309
Family Medicine - Geriatric Medicine in Tucson, AZ
About Onna Lau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ONNA LAU MD (NPI 1609372309) is an individual geriatric medicine provider in Tucson, Arizona, licensed in Arkansas (E-14789) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Onna Lau Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Onna Lau reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mesa, AZ 85205
- Reassigned Medicare billing, Arizona enrollment
- 110 clinicians in this Medicare group
Fayetteville, AR 72703
- Reassigned Medicare billing, Arkansas enrollment
- 2,038 clinicians in this Medicare group
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 11
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85719 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TUCSON, AZ 85719
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 Onna Lau's NPI number?
The NPI number for Onna Lau is 1609372309. It was assigned to this individual provider in the NPPES registry on April 2, 2018. The provider is also known as On Na Lau.
Where is Onna Lau located?
Onna Lau practices at 1740 E Fort Lowell Rd Ste 100, Tucson, AZ 85719. The listed phone number is (520) 613-0001.
What is Onna Lau's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.
Is Onna Lau enrolled in Medicare?
Yes. Onna Lau is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Onna Lau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Onna Lau reassigns Medicare benefits to 2 organizations: Archwell Health Professional Services Of Arizona, LLC (Mesa, AZ) and University Of Arkansas For Medical Sciences (Fayetteville, AR). Each 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 Onna Lau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Onna Lau accept?
Health plans from Health Advantage and Octave list Onna Lau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Onna Lau was last updated on October 10, 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.