OrganizationActive
Finn H. Tonsberg, D.D.S., Inc.
NPI 1538256250 · Dental Clinic/Center · Alameda, CA
Finn H. Tonsberg, D.D.S., Inc. is a Dental Clinic/Center organization in Alameda, CA (NPI 1538256250).
Provider details
- NPI number
- 1538256250
- Entity type
- Organization
- Primary specialty
- Dental Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Finn Tonsberg, President/ Dentist(510) 523-6400
- License
- 22926 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
1907 Santa Clara Ave
Alameda, CA 94501-2633
Phone: (510) 523-6400
Fax: (510) 523-2315
Street-level locationGet directions
Mailing address
1907 Santa Clara Ave
Alameda, CA 94501-2633
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2020-08-22
Frequently asked questions
- What is Finn H. Tonsberg, D.D.S., Inc.'s NPI number?
- Finn H. Tonsberg, D.D.S., Inc.'s National Provider Identifier (NPI) is 1538256250, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Finn H. Tonsberg, D.D.S., Inc.?
- Finn H. Tonsberg, D.D.S., Inc. is classified in the NPPES registry as Dental Clinic/Center (Ambulatory Health Care Facilities).
- Where is Finn H. Tonsberg, D.D.S., Inc. located?
- Finn H. Tonsberg, D.D.S., Inc.'s practice location on file with NPPES is 1907 Santa Clara Ave, Alameda, CA 94501-2633.
- What is Finn H. Tonsberg, D.D.S., Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Finn H. Tonsberg, D.D.S., Inc. is (510) 523-6400.
- Who is the authorized official for Finn H. Tonsberg, D.D.S., Inc.?
- The authorized official listed on Finn H. Tonsberg, D.D.S., Inc.'s NPPES record is Finn Tonsberg, President/ Dentist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Finn H. Tonsberg, D.D.S., Inc.'s NPI active?
- Yes — Finn H. Tonsberg, D.D.S., Inc.'s NPI (1538256250) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.