Nancy W. Waiganjo, MD
Internal Medicine Physician · Round Rock, TX
Nancy W. Waiganjo, MD is an internal medicine physician with a practice address in Round Rock, Texas, and NPI 1326300633, issued on Jun 12, 2012. Check the license (Texas Q5122, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nancy W. Waiganjo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- Q5122 TX
Self-reported in NPPES; status is on the state search - Practice location
- 300 University Blvd, Round Rock, TX 78665
- Phone
- (512) 509-0100
- Enumerated
- Jun 12, 2012
- Record last updated
- Jan 25, 2022
- Fax
- (512) 218-6330
- Medicare enrollment
- Enrolled (PECOS I20150910000125); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 300 University Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nancy W. Waiganjo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q5122Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
235 Medicare Part D claims for 117 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass17 claims
- Cefuroxime15 claims
- Eliquis12 claims
- Metoprolol Succinate11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Scott And White ClinicTemple, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy W. Waiganjo among 9,175 internal medicine physician records in Texas
Nancy W. Waiganjo, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 63% of them.
- NPI issued2012 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2004 among the 6,088 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 internal medicine physician records list a practice address in Round Rock
They are 63 of the 3,815 NPPES records with a practice address in Round Rock, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Round Rock → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ashraf Anani, M.D.Round Rock, TX 786651629041710
- Brian Anderson, D.O.Round Rock, TX 786651598886954
- Kendall Britt, M.D.Round Rock, TX 786651932138567
- Satya Sree Chalasani, M.D.Round Rock, TX 786651346408325
- Nilanjana Dasgupta, M.D.Round Rock, TX 786651598703084
- Trina Dorrah, M.D.Round Rock, TX 786651326104183
- Robyn Fader, MDRound Rock, TX 786651609846781
- Christopher Farmer, M.D.Round Rock, TX 786651619136462
Common questions
What is Nancy W. Waiganjo, MD's NPI number?
Nancy W. Waiganjo, MD's National Provider Identifier (NPI) is 1326300633, issued on Jun 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nancy W. Waiganjo, MD located?
The NPPES record lists a practice address at 300 University Blvd, Round Rock, TX, 78665. Phone: (512) 509-0100. Providers update this record themselves, so call before visiting.
How can I verify Nancy W. Waiganjo, MD's license?
NPPES lists Texas license number Q5122, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nancy W. Waiganjo, MD prescribe under Medicare Part D?
In 2024, Nancy W. Waiganjo, MD had 235 Medicare Part D claims for 117 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.