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OANA L. KLEIN MD
NPI 1427240647
Internal Medicine in Larkspur, CA

Active since August 11, 2007
5 BON AIR RD STE 117, LARKSPUR, CA 94939(415) 448-1500 Get Directions Write a Review

NPPES record last updated: March 15, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Oana L. Klein Md NPPES

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

OANA L. KLEIN MD (NPI 1427240647) is an individual internal medicine provider in Larkspur, California, licensed in California (C54895) and active in the NPI registry since August 2007.

NPPES Registry Identity

NPI1427240647
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameOANA L. KLEINCredential: MD
Location Address5 BON AIR RD STE 117Larkspur, CA 94939-1138
Mailing Address5 Bon Air Rd Ste 117Larkspur, CA 94939-1138 · (415) 448-1500
Phone(415) 448-1500
Sole ProprietorYes
Enumeration DateAugust 11, 2007
Last NPPES UpdateMarch 15, 2023
NPPES CertifiedMarch 15, 2023
✔ NPI 1427240647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · C54895✔ Licensed in IL · 036-119158
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.
Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X · License C54895 (CA)
5 BON AIR RD STE 117, Larkspur, CA 94939
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Other Providers at the Same Location NPPES 4

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

DR. DYLAN L BELLAVANCE DO
Family Medicine
5 BON AIR RD STE 117
LARKSPUR, CA 94939
Marin County (415) 448-1500
DR. ALARIC K AKASHI MD
Internal Medicine
5 BON AIR RD STE 117
LARKSPUR, CA 94939
Marin County (415) 448-1500
MYKAELA POE
Physician Assistant
5 BON AIR RD STE 117
LARKSPUR, CA 94939
Marin County (415) 448-1500
MARIN COMMUNITY CLINIC
Clinic/Center (Federally Qualified Health Center (FQHC))
5 BON AIR RD STE 117
LARKSPUR, CA 94939
Marin County (415) 448-1500

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 Oana Klein's NPI number?

The NPI number for Oana Klein is 1427240647. It was assigned to this individual provider in the NPPES registry on August 11, 2007.

Where is Oana Klein located?

Oana Klein practices at 5 Bon Air Rd Ste 117, Larkspur, CA 94939. The listed phone number is (415) 448-1500.

What is Oana Klein'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 Oana Klein was last updated on March 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.