Jon William Cassell, DDS
General Practice Dentistry · San Diego, CA
Jon William Cassell, DDS is a general practice dentistry with a practice address in San Diego, California, and NPI 1336329135, issued on Nov 8, 2007. Check the license (California DPO33913, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jon William Cassell
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DPO33913 CA
Self-reported in NPPES; status is on the state search - Practice location
- 591 Camino DE LA Reina, San Diego, CA 92108
- Phone
- (619) 220-7475
- Enumerated
- Nov 8, 2007
- Record last updated
- Dec 17, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (619) 220-7484
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 591 Camino DE LA Reina
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jon William Cassell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DPO33913Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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. 16 claims were for opioids.
Most prescribed
- Amoxicillin27 claims
- Dexamethasone14 claims
- Hydrocodone-Acetaminophen12 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 William Cassell among 17,852 general practice dentistry records in California
Jon William Cassell, DDS is one of 17,852 general practice dentistry records with a practice address in California. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2009 · 79% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
647 general practice dentistry records list a practice address in San Diego
They are 647 of the 52,937 NPPES records with a practice address in San Diego, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in San Diego → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Estela Caeg-Bustamante, DMDSan Diego, CA 921081811075203
- William Carlo, D.M.D.San Diego, CA 921081487765970
- Siuman Fan, D.D.S.San Diego, CA 921081811070295
- John Frost, DDSSan Diego, CA 921081821267964
- Henna Hussain, DDSSan Diego, CA 921081669632824
- Elmira Khodapanah, D.D.SSan Diego, CA 921081750595195
- Henry Kim, DDSSan Diego, CA 921081457427288
- Erina Lee, D.D.SSan Diego, CA 921081467690636
Common questions
What is Jon William Cassell, DDS's NPI number?
Jon William Cassell, DDS's National Provider Identifier (NPI) is 1336329135, issued on Nov 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jon William Cassell, DDS located?
The NPPES record lists a practice address at 591 Camino DE LA Reina, San Diego, CA, 92108. Phone: (619) 220-7475. Providers update this record themselves, so call before visiting.
How can I verify Jon William Cassell, DDS's license?
NPPES lists California license number DPO33913, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jon William Cassell, DDS prescribe under Medicare Part D?
In 2024, Jon William Cassell, DDS 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.