Herman E. Janzen, D.D.S.
General Practice Dentistry · Fresno, CA
Herman E. Janzen, D.D.S. is a general practice dentistry with a practice address in Fresno, California, and NPI 1497876544, issued on Apr 3, 2007. Check the license (California 31289, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Herman E. Janzen
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 31289 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4747 N. First, Fresno, CA 93726
- Phone
- (559) 224-3330
- Enumerated
- Apr 3, 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 4747 N. First
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Moss, D.D.S.General Practice Dentistry1093064479
Verify Herman E. Janzen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 31289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Herman E. Janzen among 17,852 general practice dentistry records in California
Herman E. Janzen, D.D.S. 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 not. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileNo · 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).
263 general practice dentistry records list a practice address in Fresno
They are 263 of the 19,440 NPPES records with a practice address in Fresno, and 17,852 general practice dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,852 in California → Every provider in Fresno → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Theresa Hanh BentleyFresno, CA 937261154392769
- Paul Budzik, D.D.S.Fresno, CA 937261215950654
- Abhay DoshiFresno, CA 937261720123268
- Thomas Downing, DDSFresno, CA 937261972600575
- Andrew Elkins, DDSFresno, CA 937261073690756
- Jeff Huang, DDSFresno, CA 937261073539714
- Ann Nakhla, DDSFresno, CA 937261851469134
- Pete Nunez, DDSFresno, CA 937261679692305
Common questions
What is Herman E. Janzen, D.D.S.'s NPI number?
Herman E. Janzen, D.D.S.'s National Provider Identifier (NPI) is 1497876544, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Herman E. Janzen, D.D.S. located?
The NPPES record lists a practice address at 4747 N. First, Fresno, CA, 93726. Phone: (559) 224-3330. Providers update this record themselves, so call before visiting.
How can I verify Herman E. Janzen, D.D.S.'s license?
NPPES lists California license number 31289, as entered by the provider. Search the California 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.