MR. MARK CLIFTON OTTOSON N.P.
NPI 1083905103
Nurse Practitioner - Family in Saint Helena, CA

Q: What is Mark Ottoson's NPI number?

The NPI number for Mark Ottoson is 1083905103. It was assigned to this individual provider in the NPPES registry on April 23, 2011.

Q: What is Mark Ottoson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Ottoson was last updated on April 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 23, 2011

1370 RAILROAD AVE, SAINT HELENA, CA 94574(707) 963-4399(707) 963-4796 Get Directions Write a Review

NPPES record last updated: April 23, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Mr. Mark Clifton Ottoson N.p. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. MARK CLIFTON OTTOSON N.P. (NPI 1083905103) is an individual family provider in Saint Helena, California, licensed in California (429620) and active in the NPI registry since April 2011.

NPPES Registry Identity

NPI1083905103

Entity TypeIndividualMale

Primary Taxonomy363LF0000X

Provider Legal NameMR. MARK CLIFTON OTTOSONCredential: N.P.

Location Address1370 RAILROAD AVESaint Helena, CA 94574-1124

Mailing Address683 Cunard DrNapa, CA 94558-3628 · (707) 259-1410 · Fax (707) 963-4796

Phone(707) 963-4399

Fax(707) 963-4796

Sole ProprietorNo

Enumeration DateApril 23, 2011

✔ NPI 1083905103 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in CA · 429620

1370 RAILROAD AVE, Saint Helena, CA 94574

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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NORMAN WALL DO INC.

Clinic/Center (Primary Care)

1370 RAILROAD AVE
SAINT HELENA, CA 94574

Napa County (707) 963-4399

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Ottoson's NPI number?

The NPI number for Mark Ottoson is 1083905103. It was assigned to this individual provider in the NPPES registry on April 23, 2011.

Where is Mark Ottoson located?

Mark Ottoson practices at 1370 Railroad Ave, Saint Helena, CA 94574. The listed phone number is (707) 963-4399.

What is Mark Ottoson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Mark Ottoson was last updated on April 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.