DR. NANCY W WAIGANJO MD
NPI 1326300633
Internal Medicine in Round Rock, TX
About Dr. Nancy W Waiganjo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NANCY W WAIGANJO MD (NPI 1326300633) is an individual internal medicine provider in Round Rock, Texas, licensed in Texas (Q5122) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center - Round Rock, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Nancy W Waiganjo Md 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
4Medicare enrollment records show Nancy Waiganjo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pflugerville, TX 78660
- Reassigned Medicare billing, Texas enrollment
- 2,795 clinicians in this Medicare group
Victoria, TX 77901
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Citizens Medical Center County Of Victoria
- 171 clinicians in this Medicare group
Mansfield, TX 76063
- Reassigned Medicare billing, Texas enrollment
- 994 clinicians in this Medicare group
Humble, TX 77338
- Reassigned Medicare billing, Texas enrollment
- 2,009 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.
Baylor Scott & White Medical Center - Round Rock
Acute Care Hospitals · Round Rock, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78665 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.
ROUND ROCK, TX 78665
ROUND ROCK, TX 78665
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 Nancy Waiganjo's NPI number?
The NPI number for Nancy Waiganjo is 1326300633. It was assigned to this individual provider in the NPPES registry on June 12, 2012.
Where is Nancy Waiganjo located?
Nancy Waiganjo practices at 300 University Blvd, Round Rock, TX 78665. The listed phone number is (512) 509-0100.
What is Nancy Waiganjo's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nancy Waiganjo enrolled in Medicare?
Yes. Nancy Waiganjo 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 Nancy Waiganjo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Waiganjo reassigns Medicare benefits to 4 organizations: Scott & White Clinic (Pflugerville, TX), Citizen's Medical Center County Of Victoria (Victoria, TX), Lonestar Hospital Medicine Associates, PA (Mansfield, TX) and Hospitalist Medicine Physicians Of Texas, PLLC (Humble, 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 Nancy Waiganjo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nancy Waiganjo accept?
Health plans from Antidote Health of TX, Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Nancy Waiganjo 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 Nancy Waiganjo affiliated with any hospitals?
According to CMS data, Nancy Waiganjo is affiliated with Baylor Scott & White Medical Center - Round Rock.
When was this NPI record last updated?
The NPPES record for Nancy Waiganjo was last updated on January 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.