NPI age
17 years
Enumerated 2008-07-12
● Active
Type 1 · Individual
DR. Janice Lindsay Sillas, M.D.
Sillas is 1 of 739 obstetrics & gynecology providers in Houston and 1 of 4633 in Texas.
Primary specialty
Obstetrics & Gynecology
Plus 1 subspecialty
Licensed in
TX, MO
2 states
Status
Active
No deactivations on record
Last NPPES update
2017-02-16
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 4633 active obstetrics & gynecology providers in Texas.
NPI age
17 years
≈ at median (18 yr)
State licenses
2 states
Top 92% — 7% of peers are multi-state
Subspecialties
0
21% of peers hold subspecialties
NPI lifetime · 2008 → 2026
2008-07Enumerated in NPPES
2008
2026
Where they practice
Practice location
7900 Fannin St, Suite 3000
Houston, TX 770542934
Mailing address
7900 Fannin St, Suite 3000
Houston, TX 770542934
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
Part of a multi-provider practice. 107 other active providers share this practice address in NPPES.
Recently enumerated nearby: 3 new obstetrics & gynecology providers have been added in Houston 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.