ALYSSA MONTANA TSAI M.D.
NPI 1477900181
Anesthesiology in Round Rock, TX
About Alyssa Montana Tsai M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA MONTANA TSAI M.D. (NPI 1477900181) is an individual anesthesiology provider in Round Rock, Texas, licensed in Texas (S6759) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS, is affiliated with North Austin Medical Center, and maintains a secondary practice location in Temple.
NPPES Registry Identity
Specialties & Licenses
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
Alyssa Montana Tsai M.d. 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
8Medicare enrollment records show Alyssa Tsai reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pflugerville, TX 78660
- Reassigned Medicare billing, Texas enrollment
- 2,795 clinicians in this Medicare group
Austin, TX 78750
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Republic Spine And Pain, PA
- 21 clinicians in this Medicare group
Austin, TX 78759
- Reassigned Medicare billing, Texas enrollment
- 840 clinicians in this Medicare group
Austin, TX 78745
- Reassigned Medicare billing, Texas enrollment
- 175 clinicians in this Medicare group
Houston, TX 77079
- Reassigned Medicare billing, Texas enrollment
- 95 clinicians in this Medicare group
Houston, TX 77036
- Reassigned Medicare billing, Texas enrollment
- 122 clinicians in this Medicare group
Fort Worth, TX 76109
- Reassigned Medicare billing, Texas enrollment
- 1,612 clinicians in this Medicare group
Arlington, TX 76006
- Reassigned Medicare billing, Texas enrollment
- 1,164 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
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.
North Austin Medical Center
Acute Care Hospitals · Austin, TXBaylor Scott & White Medical Center - Round Rock
Acute Care Hospitals · Round Rock, TXOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROUND ROCK, TX 78665
ROUND ROCK, TX 78665
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 Alyssa Tsai's NPI number?
The NPI number for Alyssa Tsai is 1477900181. It was assigned to this individual provider in the NPPES registry on May 23, 2016. The provider is also known as Alyssa Erica Montana M.D..
Where is Alyssa Tsai located?
Alyssa Tsai practices at 300 University Blvd, Round Rock, TX 78665. The listed phone number is (512) 509-0100.
What is Alyssa Tsai's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Alyssa Tsai enrolled in Medicare?
Yes. Alyssa Tsai 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 Alyssa Tsai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Tsai reassigns Medicare benefits to 8 organizations: Scott & White Clinic (Pflugerville, TX), Republic Spine And Pain, P.A. (Austin, TX), Austin Anesthesiology Group, PLLC (Austin, TX), Austin Gastroenterology Anesthesia Associates PLLC (Austin, TX), Harris County Med Surg Partners PLLC (Houston, TX) and 3 more organizations, listed in the Medicare section above. 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 Alyssa Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alyssa Tsai accept?
Health plans from Blue Cross and Blue Shield of Texas, Molina Healthcare and Sendero Health Plans, Local Nonprofit list Alyssa Tsai 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 Alyssa Tsai affiliated with any hospitals?
According to CMS data, Alyssa Tsai is affiliated with North Austin Medical Center and Baylor Scott & White Medical Center - Round Rock.
When was this NPI record last updated?
The NPPES record for Alyssa Tsai was last updated on November 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Alyssa Montana Tsai, M.D. · NPI 1477900181
Anesthesiology physician in Round Rock, Texas. Individual provider, active in the CMS NPPES registry since May 23, 2016.
## Identity
- **NPI:** 1477900181 (Entity type: Individual)
- **Enumerated:** May 23, 2016
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** S6759 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 UNIVERSITY BLVD, Round Rock, TX 78665-1032
- **Phone:** (512) 509-0100
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Scott & White Clinic (NPI 1679691729, Pflugerville, TX); Republic Spine And Pain, P.A. (NPI 1831410323, Austin, TX); Austin Anesthesiology Group, PLLC (NPI 1598724304, Austin, TX); Austin Gastroenterology Anesthesia Associates PLLC (NPI 1427405810, Austin, TX); Harris County Med Surg Partners PLLC (NPI 1417490137, Houston, TX); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Texas A & M University System, Hsc, College Of Medicine, class of 2016
## Record status
- **NPPES last updated:** November 6, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1477900181) · Data from the CMS NPPES public registry.