Jon Michael Massari, DDS
General Practice Dentistry · San Antonio, TX
Jon Michael Massari, DDS is a general practice dentistry with a practice address in San Antonio, Texas, and NPI 1407927254, issued on Nov 13, 2006. Check the license (Texas 15645, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jon Michael Massari
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 15645 TX
Self-reported in NPPES; status is on the state search - Practice location
- 140 Heimer Ste 140, San Antonio, TX 78232
- Phone
- (210) 490-6990
- Enumerated
- Nov 13, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (210) 490-7679
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 10,056 in Texas → Look up another NPI →
Verify Jon Michael Massari in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 15645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average general practice dentistry in 2024
83 Medicare Part D claims for 46 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
- Amoxicillin71 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.
Jon Michael Massari among 10,056 general practice dentistry records in Texas
Jon Michael Massari, DDS 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).
752 general practice dentistry records list a practice address in San Antonio
They are 752 of the 37,749 NPPES records with a practice address in San Antonio, and 10,056 general practice dentistry records in Texas.
All 10,056 in Texas → Every provider in San Antonio → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Robyn Adams, DMDSan Antonio, TX 782321083794358
- Craig Carlson, DDSSan Antonio, TX 782321811999865
- Hal Carlson, D.D.S.San Antonio, TX 782321659383586
- Edward Castillon, D.D.S.San Antonio, TX 782321922150879
- Patricia Dungan, DDSSan Antonio, TX 782321558412692
- William Dunn, DDSSan Antonio, TX 782321952496465
- Mary Higgins, DDSSan Antonio, TX 782321932204419
- Sonia Jennings, DDSSan Antonio, TX 782321346351236
Common questions
What is Jon Michael Massari, DDS's NPI number?
Jon Michael Massari, DDS's National Provider Identifier (NPI) is 1407927254, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jon Michael Massari, DDS located?
The NPPES record lists a practice address at 140 Heimer Ste 140, San Antonio, TX, 78232. Phone: (210) 490-6990. Providers update this record themselves, so call before visiting.
How can I verify Jon Michael Massari, DDS's license?
NPPES lists Texas license number 15645, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Jon Michael Massari, DDS prescribe under Medicare Part D?
In 2024, Jon Michael Massari, DDS had 83 Medicare Part D claims for 46 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.