John Ichiuji, DDS
General Practice Dentistry · San Ramon, CA
John Ichiuji, DDS is a general practice dentistry with a practice address in San Ramon, California, and NPI 1366652257, issued on May 22, 2007. Check the license (California 27636, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Ichiuji
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 27636 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9260 Alcosta Blvd, San Ramon, CA 94583
- Phone
- (925) 828-6300
- Enumerated
- May 22, 2007
- 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 general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 9260 Alcosta Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alicia Marpo, MSPSY, LMFTMarriage & Family Therapist1093235210
- Eng Oei, DDSGeneral Practice Dentistry1699840090
Verify John Ichiuji in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 27636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average general practice dentistry in 2024
104 Medicare Part D claims for 63 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin49 claims
- Amoxicillin-Clavulanate Potass18 claims
- Amoxicillin16 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.
John Ichiuji among 17,852 general practice dentistry records in California
John Ichiuji, 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 updated2007 · 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).
56 general practice dentistry records list a practice address in San Ramon
They are 56 of the 2,281 NPPES records with a practice address in San Ramon, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in San Ramon → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Sudha Chinta, D.D.S.San Ramon, CA 945831356412647
- Preeti Chitgopekar, D.D.SSan Ramon, CA 945831609891423
- Steven Czekala, DDSSan Ramon, CA 945831689679276
- Victoria Dillingham, DRSan Ramon, CA 945831033295209
- Kevin Draper, DDSSan Ramon, CA 945831235157801
- Garrett Draper, D.D.S.San Ramon, CA 945831528086105
- John Gee, DDSSan Ramon, CA 945831336139559
- Richard Kuehn, DDSSan Ramon, CA 945831851347926
Common questions
What is John Ichiuji, DDS's NPI number?
John Ichiuji, DDS's National Provider Identifier (NPI) is 1366652257, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Ichiuji, DDS located?
The NPPES record lists a practice address at 9260 Alcosta Blvd, San Ramon, CA, 94583. Phone: (925) 828-6300. Providers update this record themselves, so call before visiting.
How can I verify John Ichiuji, DDS's license?
NPPES lists California license number 27636, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John Ichiuji, DDS prescribe under Medicare Part D?
In 2024, John Ichiuji, DDS had 104 Medicare Part D claims for 63 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.