TSAI HSIEN LO MD
NPI 1699203695
Hospitalist in Eau Claire, WI
About Tsai Hsien Lo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TSAI HSIEN LO MD (NPI 1699203695) is an individual hospitalist provider in Eau Claire, Wisconsin, licensed in Wisconsin (84995) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Health System Eau Claire Hospital, and maintains a secondary practice location in Amarillo.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 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 and accepts Medicare assignment
Tsai Hsien Lo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Tsai Lo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Eau Claire, WI 54701
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1154372944 (Wisconsin), NPI 1700837812 (Wisconsin), NPI 1912958026 (Wisconsin), NPI 1740239557 (Wisconsin)
- 1,248 clinicians in this Medicare group
Phoenix, AZ 85016
- Reassigned Medicare billing, Arizona enrollment
- 240 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Health System Eau Claire Hospital
Acute Care Hospitals · Eau Claire, WIMayo Clinic Health System Oakridge
Critical Access Hospitals · Osseo, WIMayo Clinic Health System-Northland
Critical Access Hospitals · Barron, WIMayo Clinic Health System-Red Cedar Inc
Critical Access Hospitals · Menomonie, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Tsai Lo's NPI number?
The NPI number for Tsai Lo is 1699203695. It was assigned to this individual provider in the NPPES registry on June 2, 2017. The provider is also known as Kyaw Zin Latt MD.
Where is Tsai Lo located?
Tsai Lo practices at 1221 Whipple St, Eau Claire, WI 54703. The listed phone number is (715) 838-5222.
What is Tsai Lo's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Tsai Lo enrolled in Medicare?
Yes. Tsai Lo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tsai Lo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tsai Lo reassigns Medicare benefits to 2 organizations: Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (Eau Claire, WI) and Apogee Medical Group Inc (Phoenix, AZ). 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 Tsai Lo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tsai Lo accept?
Health plans from Cigna HealthCare of Arizona, Inc list Tsai Lo 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.
Is Tsai Lo affiliated with any hospitals?
According to CMS data, Tsai Lo is affiliated with Mayo Clinic Health System Eau Claire Hospital, Mayo Clinic Health System Oakridge, Mayo Clinic Health System-Northland and Mayo Clinic Health System-Red Cedar Inc.
When was this NPI record last updated?
The NPPES record for Tsai Lo was last updated on January 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.
# Tsai Hsien Lo, MD · NPI 1699203695
Hospitalist physician in Eau Claire, Wisconsin. Individual provider, active in the CMS NPPES registry since June 2, 2017.
## Identity
- **NPI:** 1699203695 (Entity type: Individual)
- **Enumerated:** June 2, 2017
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 84995 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1221 WHIPPLE ST, Eau Claire, WI 54703-5200
- **Phone:** (715) 838-5222
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (NPI 1235588831, Eau Claire, WI); Apogee Medical Group Inc (NPI 1205883725, Phoenix, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** January 29, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1699203695) · Data from the CMS NPPES public registry.