Karl Biernath, D.D.S.
General Practice Dentistry · Napa, CA
Karl Biernath, D.D.S. is a general practice dentistry with a practice address in Napa, California, and NPI 1922146570, issued on Feb 2, 2007. Check the license (California 37085, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karl Biernath
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 37085 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3448 Villa LN, Napa, CA 94558
- Phone
- (707) 265-9005
- Enumerated
- Feb 2, 2007
- Entity
- Type 1 · individual
Also registered at 3448 Villa LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryan Tigrett, D.D.S.Endodontics1346405438
Verify Karl Biernath in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 37085Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Industry payments in 2024: $100.00
1 payment, mostly education; the largest payer was Straumann USA LLC. The 40,968 providers of this specialty with any payment received $593.28 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.
49 general practice dentistry records list a Napa practice address
They are 49 of the 3,583 NPPES records with a Napa practice address, and 17,740 general practice dentistry records in California.
All 49 in Napa → All 17,740 in California → Every provider in Napa →
Other general practice dentistry records in California
- Ronald Aanerud, DDSSan Diego, CA1871752931
- Steven Aaronson, D.D.S.Santa Monica, CA1265455851
- Shahrzad Aarup, DDSPomona, CA1265784367
- Al Abad, DDSSan Jose, CA1104992148
- Erwin Abad, D.D.S.Canoga Park, CA1861590093
- Francine Abad, DDSSan Francisco, CA1942700810
- Maria Abad, D.D.S.Norwalk, CA1215006754
- Mark Ryan Abad, DDSDaly City, CA1770357394
- Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
- Ernesto Abadilla, DDSPalm Desert, CA1508063801
Common questions
What is Karl Biernath, D.D.S.'s NPI number?
Karl Biernath, D.D.S.'s National Provider Identifier (NPI) is 1922146570, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karl Biernath, D.D.S. located?
The NPPES record lists a practice address at 3448 Villa LN, Napa, CA, 94558. Phone: (707) 265-9005. Providers update this record themselves, so call before visiting.
How can I verify Karl Biernath, D.D.S.'s license?
NPPES lists California license number 37085, 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.