DR. JANICE LINDSAY SILLAS M.D.
NPI 1700040318
Obstetrics & Gynecology in Houston, TX
About Dr. Janice Lindsay Sillas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JANICE LINDSAY SILLAS M.D. (NPI 1700040318) is an individual obstetrics & gynecology provider in Houston, Texas, licensed in Texas (R0131) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Janice Lindsay Sillas M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Janice Sillas reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77054
- Reassigned Medicare billing, Texas enrollment
- 27 clinicians in this Medicare group
Austin, TX 78712
- Reassigned Medicare billing, Texas enrollment
- 1,188 clinicians in this Medicare group
Austin, TX 78758
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Obhg Texas Holdings PA
- 998 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77054 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HOUSTON, TX 77054
HOUSTON, TX 77054
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Janice Sillas's NPI number?
The NPI number for Janice Sillas is 1700040318. It was assigned to this individual provider in the NPPES registry on July 12, 2008. The provider is also known as Dr. Janice Lindsay Reed M.D..
Where is Janice Sillas located?
Janice Sillas practices at 7900 Fannin St Suite 3000, Houston, TX 77054. The listed phone number is (713) 791-9100.
What is Janice Sillas's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Janice Sillas enrolled in Medicare?
Yes. Janice Sillas is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Janice Sillas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Janice Sillas reassigns Medicare benefits to 4 organizations: Womans Health Group PLLC (Houston, TX), Seton Family Of Doctors (Austin, TX), Obhg Texas Holdings, P.A. (Austin, TX) and Ssm Health Care St Louis (Fenton, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Janice Sillas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Janice Sillas accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 4 other insurers list Janice Sillas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Janice Sillas was last updated on February 16, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Janice Lindsay Sillas, M.D. · NPI 1700040318
Obstetrics & Gynecology physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since July 12, 2008.
## Identity
- **NPI:** 1700040318 (Entity type: Individual)
- **Enumerated:** July 12, 2008
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** R0131 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7900 FANNIN ST, SUITE 3000, Houston, TX 77054-2934
- **Phone:** (713) 791-9100
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Womans Health Group PLLC (NPI 1750532545, Houston, TX); Seton Family Of Doctors (NPI 1588997233, Austin, TX); Obhg Texas Holdings, P.A. (NPI 1083917769, Austin, TX); Ssm Health Care St Louis (NPI 1275586174, Fenton, MO) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 16, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1700040318) · Data from the CMS NPPES public registry.