NPPES file of Aug 9, 2026

Bill Kwok So, D.D.S.

General Practice Dentistry · Houston, TX

Bill Kwok So, D.D.S. is a general practice dentistry with a practice address in Houston, Texas, and NPI 1790868594, issued on Oct 23, 2006. Check the license (Texas 20635, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790868594
Name
Bill Kwok So
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
20635 TX
Self-reported in NPPES; status is on the state search
Practice location
4410 Westway Park Blvd Ste 600, Houston, TX 77041
Phone
(713) 690-1900
Enumerated
Oct 23, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Bill Kwok So in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 20635
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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5% more Medicare Part D claims than the average general practice dentistry in 2024

87 Medicare Part D claims for 39 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.

  1. Bill So87
  2. Specialty average83

Most prescribed

  1. Amoxicillin29 claims
  2. Methylprednisolone12 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.

Bill Kwok So among 10,056 general practice dentistry records in Texas

Bill Kwok So, D.D.S. 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 73% 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 updated2007 · 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).

1,316 general practice dentistry records list a practice address in Houston

They are 1,316 of the 61,221 NPPES records with a practice address in Houston, and 10,056 general practice dentistry records in Texas.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Charles Saxon, D.D.S.Houston, TX 770411104158146
  2. Craig Armstrong, D.D.S.Houston, TX 770421811991805
  3. Elizabeth Berzin, D.D.S.Houston, TX 770421013094283
  4. Matthew Cook, DDSHouston, TX 770401043300478
  5. Gary Craig, D.D.S.Houston, TX 770421386854511
  6. Scott Driver, D.D.S.Houston, TX 770401104104033
  7. Scott Eccles, DMDHouston, TX 770421376769281
  8. Nathanial Ellis, DMDHouston, TX 770401760219745

Common questions

What is Bill Kwok So, D.D.S.'s NPI number?

Bill Kwok So, D.D.S.'s National Provider Identifier (NPI) is 1790868594, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bill Kwok So, D.D.S. located?

The NPPES record lists a practice address at 4410 Westway Park Blvd Ste 600, Houston, TX, 77041. Phone: (713) 690-1900. Providers update this record themselves, so call before visiting.

How can I verify Bill Kwok So, D.D.S.'s license?

NPPES lists Texas license number 20635, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Bill Kwok So, D.D.S. prescribe under Medicare Part D?

In 2024, Bill Kwok So, D.D.S. had 87 Medicare Part D claims for 39 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.