DR. REXY ANN THOMAS MD
NPI 1164653028
Hospitalist in Boise, ID
About Dr. Rexy Ann Thomas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. REXY ANN THOMAS MD (NPI 1164653028) is an individual hospitalist provider in Boise, Idaho, licensed in Idaho (M-12551) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS, is affiliated with Waukesha Memorial Hospital, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Rexy Ann Thomas Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Rexy Thomas reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Neenah, WI 54956
- Reassigned Medicare billing, Wisconsin enrollment
- 444 clinicians in this Medicare group
Waukesha, WI 53188
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Apogee Medical Group Waukesha Sc
- 81 clinicians in this Medicare group
Mequon, WI 53097
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Glendale, WI 53212
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 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 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Waukesha Memorial Hospital
Acute Care Hospitals · Waukesha, WIOconomowoc Memorial Hospital
Acute Care Hospitals · Oconomowoc, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 83712 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.
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.
BOISE, ID 83712
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 Rexy Thomas's NPI number?
The NPI number for Rexy Thomas is 1164653028. It was assigned to this individual provider in the NPPES registry on July 27, 2009.
Where is Rexy Thomas located?
Rexy Thomas practices at 190 E Bannock St, Boise, ID 83712. The listed phone number is (208) 205-7591.
What is Rexy Thomas's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Rexy Thomas enrolled in Medicare?
Yes. Rexy Thomas is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Rexy Thomas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rexy Thomas reassigns Medicare benefits to 4 organizations: Ascension Medical Group-Fox Valley Wisconsin, Inc (Neenah, WI), Apogee Medical Group, Waukesha, S.C. (Waukesha, WI), Columbia St. Mary's Hospital Milwaukee, Inc (Mequon, WI) and Ascension Medical Group-Southeast Wisconsin Inc (Glendale, WI). 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 Rexy Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Rexy Thomas affiliated with any hospitals?
According to CMS data, Rexy Thomas is affiliated with Waukesha Memorial Hospital and Oconomowoc Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Rexy Thomas was last updated on December 3, 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.
# Dr. Rexy Ann Thomas, MD · NPI 1164653028
Hospitalist physician in Boise, Idaho. Individual provider, active in the CMS NPPES registry since July 27, 2009.
## Identity
- **NPI:** 1164653028 (Entity type: Individual)
- **Enumerated:** July 27, 2009
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** M-12551 (Idaho)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 190 E BANNOCK ST, Boise, ID 83712-6241
- **Phone:** (208) 205-7591
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Ascension Medical Group-Fox Valley Wisconsin, Inc (NPI 1730126392, Neenah, WI); Apogee Medical Group, Waukesha, S.C. (NPI 1528544608, Waukesha, WI); Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1710928221, Mequon, WI); Ascension Medical Group-Southeast Wisconsin Inc (NPI 1609881077, Glendale, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** December 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1164653028) · Data from the CMS NPPES public registry.