William Michael Irwin, D.D.S.
General Practice Dentistry · Houston, TX
William Michael Irwin, D.D.S. is a general practice dentistry with a practice address in Houston, Texas, and NPI 1568549954, issued on Nov 1, 2006. Check the license (Texas 8538, as entered in NPPES) with the Texas board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Michael Irwin
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 8538 TX
Self-reported in NPPES; status is on the state search - Practice location
- 316 Freeport St, Houston, TX 77015
- Phone
- (713) 453-7133
- Enumerated
- Nov 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (713) 453-4699
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 10,056 in Texas → Look up another NPI →
Also registered at 316 Freeport St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jane Lunardi, FNPFamily Nurse Practitioner1962381897
Verify William Michael Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 8538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Michael Irwin among 10,056 general practice dentistry records in Texas
William Michael Irwin, 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 not. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 73% newer
- In a Medicare fileNo · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 10,056 in Texas → Every provider in Houston → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Asha AbrahamHouston, TX 770151821148396
- Jose Alaniz, DDSHouston, TX 770151154355782
- James Ausmus, DDSHouston, TX 770151720138084
- Mary Helainne Austria, DDSHouston, TX 770151922197821
- Craig CutropiaHouston, TX 770151871643338
- Reena George, DDSHouston, TX 770151609865070
- Jennifer PerezHouston, TX 770151235262023
- Albert Smith, D.D.S.Houston, TX 770151073693941
Common questions
What is William Michael Irwin, D.D.S.'s NPI number?
William Michael Irwin, D.D.S.'s National Provider Identifier (NPI) is 1568549954, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Michael Irwin, D.D.S. located?
The NPPES record lists a practice address at 316 Freeport St, Houston, TX, 77015. Phone: (713) 453-7133. Providers update this record themselves, so call before visiting.
How can I verify William Michael Irwin, D.D.S.'s license?
NPPES lists Texas license number 8538, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity 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. 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.