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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ian Sheene Davis-Tremayne, D.C.

Chiropractor in Mill Valley, CA · enumerated 2009 · practices at Joshua Deitch Chiropractic, Inc.

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

National Provider Identifier

1881834646

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Registry record

Entity type Individual (Type 1)
Name Dr. Ian Sheene Davis-Tremayne
Credential D.C.
Sex Male
Practice address Mill Valley, CA, 94941
Phone (415) 389-8435
Enumeration date Mar 5, 2009
Last updated in NPPES Mar 5, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC31152 (CA) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

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Frequently asked questions

How do I verify Ian Davis-Tremayne's NPI record?
Cross-check NPI 1881834646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1881834646 active?
Yes, as of the latest NPPES snapshot, NPI 1881834646 is active (record last updated 2009-03-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-05.