Li Sun, MD
Internal Medicine Physician · Round Rock, TX
Li Sun, MD is an internal medicine physician with a practice address in Round Rock, Texas, and NPI 1730446014, issued on Apr 11, 2012. Check the license (Texas R5214, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Li Sun
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- R5214 TX
207098 LA
Self-reported in NPPES; status is on the state search - Practice location
- 425 University Blvd, Round Rock, TX 78665
- Phone
- (512) 509-0200
- Enumerated
- Apr 11, 2012
- Record last updated
- Nov 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (512) 509-0285
- Medicare enrollment
- Enrolled (PECOS I20180713002491); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 425 University Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Aycock, D.OPsychiatry Physician1205121050
- Sohail Azadi, MDPediatrics Physician1154414688
- Lynn Azuma, M.D.Pediatrics Physician1295782043
Verify Li Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license R5214Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average internal medicine physician in 2024
5,831 Medicare Part D claims for 542 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 111 claims were for opioids.
Most prescribed
- Atorvastatin Calcium403 claims
- Losartan Potassium308 claims
- Levothyroxine Sodium294 claims
- Amlodipine Besylate203 claims
- Rosuvastatin Calcium160 claims
- Lisinopril128 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 2 group practices
- Legacy Healthcare Services IncCedar Park, TX
- Scott And White ClinicAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Li Sun among 9,175 internal medicine physician records in Texas
Li Sun, 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
- Graduated1997 · median 2004 among the 6,088 with a school on file
- Record last updated2020 · 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 Li Sun, MD's NPI number?
Li Sun, MD's National Provider Identifier (NPI) is 1730446014, issued on Apr 11, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Li Sun, MD located?
The NPPES record lists a practice address at 425 University Blvd, Round Rock, TX, 78665. Phone: (512) 509-0200. Providers update this record themselves, so call before visiting.
How can I verify Li Sun, MD's license?
NPPES lists Texas license number R5214, 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 Li Sun, MD prescribe under Medicare Part D?
In 2024, Li Sun, MD had 5,831 Medicare Part D claims for 542 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.