Sigrid Tristan, M.D.
NPI 1912199563 · Obstetrics & Gynecology Physician · Austin, TX
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sigrid Tristan, M.D. is a Obstetrics & Gynecology Physician provider in Austin, TX (NPI 1912199563).
Provider details
- NPI number
- 1912199563
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036.12075 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-16
- Last updated
- 2017-03-16
Frequently asked questions
- What is Sigrid Tristan's NPI number?
- Sigrid Tristan's National Provider Identifier (NPI) is 1912199563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sigrid Tristan's specialty?
- Sigrid Tristan is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Sigrid Tristan located?
- Sigrid Tristan's practice location on file with NPPES is 601 E 15th St, Austin, TX 78701-1930.
- What is Sigrid Tristan's phone number?
- The practice phone number listed in the NPPES registry for Sigrid Tristan is (512) 324-7000.
- Does Sigrid Tristan accept Medicare?
- Sigrid Tristan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sigrid Tristan's NPI active?
- Yes — Sigrid Tristan's NPI (1912199563) is active in the NPPES registry as of the last update on 2017-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.