Mary Theiss
NPI 1215536586 · Certified Registered Nurse Anesthetist · Fair Oaks Ranch, TX
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Theiss is a Certified Registered Nurse Anesthetist provider in Fair Oaks Ranch, TX (NPI 1215536586).
Provider details
- NPI number
- 1215536586
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 879598 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 4502 Medical DrSan Antonio, TX 78229-4402Phone: (210) 358-4000
Registry dates
- Enumerated
- 2020-10-19
- Last updated
- 2024-05-23
- Certified
- 2024-05-23
Frequently asked questions
- What is Mary Theiss's NPI number?
- Mary Theiss's National Provider Identifier (NPI) is 1215536586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Theiss's specialty?
- Mary Theiss is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Theiss located?
- Mary Theiss's practice location on file with NPPES is 8434 Raintree Woods Dr, Fair Oaks Ranch, TX 78015-4437.
- What is Mary Theiss's phone number?
- The practice phone number listed in the NPPES registry for Mary Theiss is (318) 376-3819.
- Does Mary Theiss accept Medicare?
- Mary Theiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Theiss's NPI active?
- Yes — Mary Theiss's NPI (1215536586) is active in the NPPES registry as of the last update on 2024-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.