IndividualActive
Spencer Larsen, M.D.
NPI 1114471620 · Health Service Clinic/Center · Danville, CA
Spencer Larsen, M.D. is a Health Service Clinic/Center provider in Danville, CA (NPI 1114471620).
Provider details
- NPI number
- 1114471620
- Entity type
- Individual
- Primary specialty
- Health Service Clinic/CenterAmbulatory Health Care Facilities
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G-17623 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Established profile(71/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
70 Princeton Ct
Danville, CA 94526-4122
Phone: (925) 837-1683
Street-level locationGet directions
Mailing address
70 Princeton Ct
Danville, CA 94526-4122
Registry dates
- Enumerated
- 2016-08-12
- Last updated
- 2016-08-12
Frequently asked questions
- What is Spencer Larsen's NPI number?
- Spencer Larsen's National Provider Identifier (NPI) is 1114471620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Larsen's specialty?
- Spencer Larsen is listed in the NPPES registry with a primary specialty of Health Service Clinic/Center (Ambulatory Health Care Facilities).
- Where is Spencer Larsen located?
- Spencer Larsen's practice location on file with NPPES is 70 Princeton Ct, Danville, CA 94526-4122.
- What is Spencer Larsen's phone number?
- The practice phone number listed in the NPPES registry for Spencer Larsen is (925) 837-1683.
- Is Spencer Larsen's NPI active?
- Yes — Spencer Larsen's NPI (1114471620) is active in the NPPES registry as of the last update on 2016-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.