NPI age
8 years
Enumerated 2017-06-06
● Active
Type 1 · Individual
DR. Adrian Adonious Simien, DO
Simien is 1 of 318 obstetrics & gynecology providers in San Antonio and 1 of 4633 in Texas.
Primary specialty
Obstetrics & Gynecology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-07-13
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 4633 active obstetrics & gynecology providers in Texas.
NPI age
8 years
↓ 10 yr below median (18 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
0
21% of peers hold subspecialties
NPI lifetime · 2017 → 2026
2017-06Enumerated in NPPES
2017
2026
Where they practice
Practice location
11212 State Highway 151 # 351
San Antonio, TX 782514498
Mailing address
11212 State Highway 151 # 351
San Antonio, TX 782514498
Additional practice locations
1 secondary location on file with NPPES.
Location 2
550 University Blvd Ste 2440
Indianapolis, IN 462025149
Specialties
-
Obstetrics & Gynecology PrimaryAn obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other...
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
Recently enumerated nearby: 3 new obstetrics & gynecology providers have been added in San Antonio in the last 180 days.
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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.