NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deborah Lorraine Koos, RD, MS, CDE

Registered Dietitian in Walnut Creek, CA · enumerated 2007 · practices at Kaiser Medical Offices.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1437207990

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Deborah Lorraine Koos
Credential RD, MS, CDE
Sex Female
Practice address 320 Lennon Ln, Health Education Department, Walnut Creek, CA, 94598
Phone (925) 906-2190
Enumeration date Jan 8, 2007
Last updated in NPPES Jul 11, 2007

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Deborah Koos?
The National Provider Identifier (NPI) for Deborah Koos is 1437207990, a Type 1 (individual) record in the CMS NPPES registry.
Where does Deborah Koos practice?
The practice location on file with NPPES is in Walnut Creek, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-11.