Santina Mastoris, PA-C
NPI 1992224547 · Surgical Physician Assistant · Austin, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Santina Mastoris, PA-C is a Surgical Physician Assistant provider in Austin, TX (NPI 1992224547).
Provider details
- NPI number
- 1992224547
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- PA16767 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
$1,391 across 27 records (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
Registry dates
- Enumerated
- 2017-09-14
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is Santina Mastoris's NPI number?
- Santina Mastoris's National Provider Identifier (NPI) is 1992224547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Santina Mastoris's specialty?
- Santina Mastoris is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Santina Mastoris located?
- Santina Mastoris's practice location on file with NPPES is 2905 San Gabriel St Ste 100, Austin, TX 78705-3548.
- What is Santina Mastoris's phone number?
- The practice phone number listed in the NPPES registry for Santina Mastoris is (512) 815-0123.
- Does Santina Mastoris accept Medicare?
- Santina Mastoris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Santina Mastoris's NPI active?
- Yes — Santina Mastoris's NPI (1992224547) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.