NPI age
1 years
Enumerated 2024-08-22
● Active
Type 1 · Individual
Sarah Hallmark
Hallmark is 1 of 231 nurse practitioner providers in Austin and 1 of 5264 in Texas.
Primary specialty
Nurse Practitioner
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2024-08-22
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 5264 active nurse practitioner providers in Texas.
NPI age
1 years
↓ 7 yr below median (8 yr)
State licenses
1 state
6% of peers hold multiple states
Subspecialties
0
37% of peers hold subspecialties
NPI lifetime · 2024 → 2026
2024-08Enumerated in NPPES
2024
2026
Where they practice
Practice location
1500 Red River St
Austin, TX 787011918
Mailing address
8001 Mellencamp Dr
Austin, TX 787442099
Specialties
-
Nurse Practitioner Primary(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum...
Practice context
Part of a multi-provider practice. 170 other active providers share this practice address in NPPES.
Recently enumerated nearby: 10 new nurse practitioner providers have been added in Austin in the last 180 days.
See all →
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.