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SIGVE K. TONSTAD M.D.
NPI 1043499098
Internal Medicine in Loma Linda, CA

Active since October 26, 2007
11370 ANDERSON ST, LOMA LINDA, CA 92354(909) 558-2870 Get Directions Write a Review

NPPES record last updated: July 1, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Sigve K. Tonstad M.d. NPPES

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

SIGVE K. TONSTAD M.D. (NPI 1043499098) is an individual internal medicine provider in Loma Linda, California, licensed in California (G62012) and active in the NPI registry since October 2007.

NPPES Registry Identity

NPI1043499098
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSIGVE K. TONSTADCredential: M.D.
Location Address11370 ANDERSON STLoma Linda, CA 92354-3450
Mailing AddressFile Number 54701Los Angeles, CA 90074-0001 · (909) 558-3111
Phone(909) 558-2870
Sole ProprietorNo
Enumeration DateOctober 26, 2007
Last NPPES UpdateJuly 1, 2008
✔ NPI 1043499098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G62012
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
11370 ANDERSON ST, Loma Linda, CA 92354
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Other Identifiers 2

Medicaid00G620120CA
Medicare UPINE30300

Other Providers at the Same Location NPPES 20

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

JOHN Y KIM M.D.
Otolaryngology
11370 ANDERSON ST, SUITE 2100
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2822
EDMUND YUEY KUN KO M.D.
Urology
11370 ANDERSON ST, SUITE 1100
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2830
SNORRI OLAFSSON M.D.
Internal Medicine (Gastroenterology)
11370 ANDERSON ST, STE 3150
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2191
KHASHAYAR DASHTIPOUR M.D.
Psychiatry & Neurology (Neurology)
11370 ANDERSON ST, SUITE 2400
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2880
DOUGLAS DEMING M.D.
Pediatrics (Neonatal-Perinatal Medicine)
11370 ANDERSON ST, STE B-100
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2848
ABEL TORRES M.D.
Dermatology (MOHS-Micrographic Surgery)
11370 ANDERSON ST, STE 2600
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2055
MIA NEPOMUCENO-PEREZ M.D.
Pathology (Anatomic Pathology)
11370 ANDERSON ST, STE 2960
LOMA LINDA, CA 92354
San Bernardino County (909) 558-6422
CHIEN-SHING CHEN M.D.
Internal Medicine (Medical Oncology)
11370 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2481

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 Sigve Tonstad's NPI number?

The NPI number for Sigve Tonstad is 1043499098. It was assigned to this individual provider in the NPPES registry on October 26, 2007.

Where is Sigve Tonstad located?

Sigve Tonstad practices at 11370 Anderson St, Loma Linda, CA 92354. The listed phone number is (909) 558-2870.

What is Sigve Tonstad's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Sigve Tonstad was last updated on July 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.