John Siu, D.M.D.
General Practice Dentistry · Katy, TX
John Siu, D.M.D. is a general practice dentistry with a practice address in Katy, Texas, and NPI 1386956514, issued on Jul 2, 2010. Check the license (Texas 28321, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Siu
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 28321 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1530 W Grand Pkwy S, Katy, TX 77494
- Phone
- (281) 769-7648
- Enumerated
- Jul 2, 2010
- Record last updated
- Dec 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 10,056 in Texas → Look up another NPI →
Also registered at 1530 W Grand Pkwy S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Siu, DMDGeneral Practice Dentistry1396493615
Verify John Siu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 28321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average general practice dentistry in 2024
34 Medicare Part D claims for 18 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin15 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.
John Siu among 10,056 general practice dentistry records in Texas
John Siu, D.M.D. is one of 10,056 general practice dentistry records with a practice address in Texas. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 56% of them.
- NPI issued2010 · 56% of these records are older, 41% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
119 general practice dentistry records list a practice address in Katy
They are 119 of the 5,078 NPPES records with a practice address in Katy, and 10,056 general practice dentistry records in Texas.
All 10,056 in Texas → Every provider in Katy → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Kristin Arnold, DDSKaty, TX 774941487833638
- Bradley Barker, D.D.S.Katy, TX 774941477668192
- Ronald Crabtree, D.D.S.Katy, TX 774941598732166
- Joseph Estes, DDSKaty, TX 774941861615437
- Amy Fillman, D.D.S.Katy, TX 774941437230455
- Linda Hoang, D.D.S.Katy, TX 774941528124674
- Tho Huynh, DMDKaty, TX 774941861554057
- Braydon Kratz, DDS PAKaty, TX 774941629186408
Common questions
What is John Siu, D.M.D.'s NPI number?
John Siu, D.M.D.'s National Provider Identifier (NPI) is 1386956514, issued on Jul 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Siu, D.M.D. located?
The NPPES record lists a practice address at 1530 W Grand Pkwy S, Katy, TX, 77494. Phone: (281) 769-7648. Providers update this record themselves, so call before visiting.
How can I verify John Siu, D.M.D.'s license?
NPPES lists Texas license number 28321, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does John Siu, D.M.D. prescribe under Medicare Part D?
In 2024, John Siu, D.M.D. had 34 Medicare Part D claims for 18 beneficiaries; the average among general practice dentistry prescribers was 83. 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.