TAMARA DIANNE WILLIAMS NP
NPI 1831577311
Nurse Practitioner - Family in Rowlett, TX
About Tamara Dianne Williams Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMARA DIANNE WILLIAMS NP (NPI 1831577311) is an individual family provider in Rowlett, Texas, licensed in Texas (AP127991) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, is affiliated with Christus Mother Frances Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Tamara Dianne Williams Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Tamara Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenville, TX 75402
- Reassigned Medicare billing, Texas enrollment
- 40 clinicians in this Medicare group
Commerce, TX 75428
- Reassigned Medicare billing, Texas enrollment
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Mother Frances Hospital
Acute Care Hospitals · Tyler, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75088 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROWLETT, TX 75088
ROWLETT, TX 75088
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 Tamara Williams's NPI number?
The NPI number for Tamara Williams is 1831577311. It was assigned to this individual provider in the NPPES registry on May 15, 2015.
Where is Tamara Williams located?
Tamara Williams practices at 7501 Lakeview Pkwy Ste 245, Rowlett, TX 75088. The listed phone number is (694) 626-1577.
What is Tamara Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Tamara Williams enrolled in Medicare?
Yes. Tamara Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tamara Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tamara Williams reassigns Medicare benefits to 3 organizations: Hunt Regional Urgent Care (Greenville, TX), Selvaggi Investments (Commerce, TX) and Christus Trinity Clinic Texas (Tyler, TX). 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 Tamara Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tamara Williams accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Cigna Healthcare and UnitedHealthcare list Tamara Williams 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.
Is Tamara Williams affiliated with any hospitals?
According to CMS data, Tamara Williams is affiliated with Christus Mother Frances Hospital.
When was this NPI record last updated?
The NPPES record for Tamara Williams was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.