Mark Ottoson, N.P.
NPI 1083905103 · Family Nurse Practitioner · Saint Helena, CA
Mark Ottoson, N.P. is a Family Nurse Practitioner provider in Saint Helena, CA (NPI 1083905103).
Provider details
- NPI number
- 1083905103
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Male
- Sole proprietor
- No
- License
- 429620 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2011-04-23
- Last updated
- 2011-04-23
Frequently asked questions
- What is Mark Ottoson's NPI number?
- Mark Ottoson's National Provider Identifier (NPI) is 1083905103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ottoson's specialty?
- Mark Ottoson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Ottoson located?
- Mark Ottoson's practice location on file with NPPES is 1370 Railroad Ave, Saint Helena, CA 94574-1124.
- What is Mark Ottoson's phone number?
- The practice phone number listed in the NPPES registry for Mark Ottoson is (707) 963-4399.
- Is Mark Ottoson's NPI active?
- Yes — Mark Ottoson's NPI (1083905103) is active in the NPPES registry as of the last update on 2011-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.