NPI age
19 years
Enumerated 2007-02-24
● Active
Type 1 · Individual
Sonia Yousuf, MD
Yousuf is 1 of 22 internal medicine providers in Austin and 1 of 749 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX, MI
2 states
Status
Active
No deactivations on record
Last NPPES update
2016-01-27
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 749 active internal medicine providers in Texas.
NPI age
19 years
≈ at median (18 yr)
State licenses
2 states
Top 85% — 15% of peers are multi-state
Subspecialties
0
34% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-02Enumerated in NPPES
2007
2026
Where they practice
Practice location
1807 W Slaughter Ln, Suite 490
Austin, TX 787486230
Mailing address
4515 Seton Center Pkwy, Suite 215-Credentialing
Austin, TX 787595290
Specialties
-
Internal Medicine PrimaryAn internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 350883001 | |
| 05 (TX) | 350883002 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 13 other active providers share this practice address in NPPES.
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- 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.