Mark Charles Fagan, D.D.S.
Periodontics · San Jose, CA
Mark Charles Fagan, D.D.S. is a periodontics with a practice address in San Jose, California, and NPI 1376562827, issued on Jul 18, 2006. Check the license (California 38419, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Charles Fagan
- Credential
- D.D.S.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 38419 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1660 Willow St, San Jose, CA 95125
- Phone
- (408) 269-1060
- Enumerated
- Jul 18, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Also registered at 1660 Willow St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Bocks, DDSGeneral Practice Dentistry1174685960
- John Cupples, DDSGeneral Practice Dentistry1275536187
- Matthew Malvase, DMDGeneral Practice Dentistry1639793250
- Steven Toschi, DDSGeneral Practice Dentistry1033239306
- Kirk Yen, D.D.S.Oral and Maxillofacial Surgery (Dentist)1013971555
Verify Mark Charles Fagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 38419Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average periodontics in 2024
416 Medicare Part D claims for 209 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 190 claims were for opioids.
Most prescribed
- Amoxicillin158 claims
- Hydrocodone-Acetaminophen155 claims
- Azithromycin35 claims
- Acetaminophen-Codeine32 claims
- Clindamycin Hcl15 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.
Industry payments in 2024: $136.88
6 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark Charles Fagan among 929 periodontics records in California
Mark Charles Fagan, D.D.S. is one of 929 periodontics records with a practice address in California. 69% 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, 71% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in San Jose → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Donald Boyle, DDSSan Jose, CA 951241174895056
- Fabrice Gallez, DDSSan Jose, CA 951241265639868
- Tram Hoang, D.D.S., M.S.San Jose, CA 951261295736858
- Elena Sanz Miralles, DDS, MS, PHDSan Jose, CA 951241982058194
- Timothy Gifford, D.D.S.San Jose, CA 951231114102357
- Kai Lei, DDS, MSSan Jose, CA 951231992188726
- Christine Hayashi, DDS,MSSan Jose, CA 951281275680530
- Yen-Tseng Lai, DMD, MSSan Jose, CA 951221295099026
Common questions
What is Mark Charles Fagan, D.D.S.'s NPI number?
Mark Charles Fagan, D.D.S.'s National Provider Identifier (NPI) is 1376562827, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Charles Fagan, D.D.S. located?
The NPPES record lists a practice address at 1660 Willow St, San Jose, CA, 95125. Phone: (408) 269-1060. Providers update this record themselves, so call before visiting.
How can I verify Mark Charles Fagan, D.D.S.'s license?
NPPES lists California license number 38419, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Charles Fagan, D.D.S. prescribe under Medicare Part D?
In 2024, Mark Charles Fagan, D.D.S. had 416 Medicare Part D claims for 209 beneficiaries; the average among periodontics prescribers was 277. 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.