Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Louise Dahl, OTR L CHT

Hand Occupational Therapist in Placerville, CA · enumerated 2006.

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

National Provider Identifier

1023119005

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Louise Dahl

Credential OTR L CHT

Sex Female

Practice address 1004 Fowler Way, Suite 9, Placerville, CA, 95667

Phone (530) 676-8004

Fax (530) 626-6551

Enumeration date Sep 25, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225XH1200X Hand Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT4211 (CA) Primary

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

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 Mary Dahl?

Mary Dahl is registered in NPPES with the primary taxonomy of Hand Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.