Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Deena R Thompson, NTP
Nutritionist in Mill Valley, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1174032023
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Registry record
Entity type Individual (Type 1)
Name Deena R Thompson
Credential NTP
Sex Female
Practice address 544 Tamalpais Dr, Mill Valley, CA, 94941
Phone (801) 885-9682
Enumeration date Sep 22, 2017
Last updated in NPPES Jul 21, 2022
Taxonomy & licenses
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Deena Thompson?
Deena Thompson is registered in NPPES with the primary taxonomy of Nutritionist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.