Serena Tonstad
NPI 1023258290 · Public Health & General Preventive Medicine Physician · Loma Linda, CA
Serena Tonstad is a Public Health & General Preventive Medicine Physician provider in Loma Linda, CA (NPI 1023258290).
Provider details
- NPI number
- 1023258290
- Entity type
- Individual
- Primary specialty
- Public Health & General Preventive Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- G63600 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
Mailing address
Registry dates
- Enumerated
- 2009-03-02
- Last updated
- 2009-03-02
Frequently asked questions
- What is Serena Tonstad's NPI number?
- Serena Tonstad's National Provider Identifier (NPI) is 1023258290, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Serena Tonstad's specialty?
- Serena Tonstad is listed in the NPPES registry with a primary specialty of Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Serena Tonstad located?
- Serena Tonstad's practice location on file with NPPES is 24785 Stewart St, Loma Linda, CA 92350-0001.
- What is Serena Tonstad's phone number?
- The practice phone number listed in the NPPES registry for Serena Tonstad is (909) 558-4741.
- Is Serena Tonstad's NPI active?
- Yes — Serena Tonstad's NPI (1023258290) is active in the NPPES registry as of the last update on 2009-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.