Karl Biernath, D.D.S.
NPI 1922146570 · General Practice Dentistry · Napa, CA
Karl Biernath, D.D.S. is a General Practice Dentistry provider in Napa, CA (NPI 1922146570).
Provider details
- NPI number
- 1922146570
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 37085 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$100 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Karl Biernath's NPI number?
- Karl Biernath's National Provider Identifier (NPI) is 1922146570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Biernath's specialty?
- Karl Biernath is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Karl Biernath located?
- Karl Biernath's practice location on file with NPPES is 3448 Villa Ln, Napa, CA 94558-6471.
- What is Karl Biernath's phone number?
- The practice phone number listed in the NPPES registry for Karl Biernath is (707) 265-9005.
- Is Karl Biernath's NPI active?
- Yes — Karl Biernath's NPI (1922146570) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.