MARY AMANDA THEISS
NPI 1215536586
Nurse Anesthetist, Certified Registered in Fair Oaks Ranch, TX
About Mary Amanda Theiss NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY AMANDA THEISS (NPI 1215536586) is an individual nurse anesthetist, certified registered in Fair Oaks Ranch, Texas, licensed in Texas (1030889) and active in the NPI registry since October 2020. She is affiliated with University Health System, maintains a secondary practice location in San Antonio, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 2
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
Mary Amanda Theiss 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
5Medicare enrollment records show Mary Theiss reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boerne, TX 78015
- Reassigned Medicare billing, Texas enrollment
- 2,397 clinicians in this Medicare group
San Antonio, TX 78207
- Reassigned Medicare billing, Texas enrollment
- 1,129 clinicians in this Medicare group
Webster, TX 77598
- Reassigned Medicare billing, Texas enrollment
- 710 clinicians in this Medicare group
Fort Worth, TX 76109
- Reassigned Medicare billing, Texas enrollment
- 1,612 clinicians in this Medicare group
New Iberia, LA 70563
- Reassigned Medicare billing, Texas enrollment
- 282 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Health System
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78015 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.
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 Mary Theiss's NPI number?
The NPI number for Mary Theiss is 1215536586. It was assigned to this individual provider in the NPPES registry on October 19, 2020.
Where is Mary Theiss located?
Mary Theiss practices at 8434 Raintree Woods Dr, Fair Oaks Ranch, TX 78015. The listed phone number is (318) 376-3819.
What is Mary Theiss's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary Theiss enrolled in Medicare?
Yes. Mary Theiss 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 Mary Theiss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Theiss reassigns Medicare benefits to 5 organizations: University Of Texas Health Science Center At San Antonio (Boerne, TX), Community Medicine Associates (San Antonio, TX), Endo Sedation LLC (Webster, TX), Emergenchealth PLLC (Fort Worth, TX) and Youngs Professional Services LLC (New Iberia, LA). 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 Mary Theiss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Theiss accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Community First and Imperial Insurance Companies, Inc. list Mary Theiss 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 Mary Theiss affiliated with any hospitals?
According to CMS data, Mary Theiss is affiliated with University Health System.
When was this NPI record last updated?
The NPPES record for Mary Theiss was last updated on May 23, 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.
# Mary Amanda Theiss · NPI 1215536586
Nurse Anesthetist, Certified Registered physician in Fair Oaks Ranch, Texas. Individual provider, active in the CMS NPPES registry since October 19, 2020.
## Identity
- **NPI:** 1215536586 (Entity type: Individual)
- **Enumerated:** October 19, 2020
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 1030889 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 8434 RAINTREE WOODS DR, Fair Oaks Ranch, TX 78015-4437
- **Phone:** (318) 376-3819
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): University Of Texas Health Science Center At San Antonio (NPI 1417921834, Boerne, TX); Community Medicine Associates (NPI 1245313329, San Antonio, TX); Endo Sedation LLC (NPI 1811464936, Webster, TX); Emergenchealth PLLC (NPI 1467970897, Fort Worth, TX); Youngs Professional Services LLC (NPI 1922178599, New Iberia, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** May 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1215536586) · Data from the CMS NPPES public registry.