Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Mary Ann Martinez, OTR/L, CHT
Occupational Therapist in Napa, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265623029
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mrs. Mary Ann Martinez
Credential OTR/L, CHT
Sex Female
Practice address 3273 Claremont Way, Suite 204, Napa, CA, 94558
Phone (707) 259-1152
Fax (707) 259-1361
Enumeration date Aug 7, 2007
Last updated in NPPES Mar 17, 2021
Taxonomy & licenses
225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT4925 (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.
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 Ann Martinez?
Mary Ann Martinez is registered in NPPES with the primary taxonomy of 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 → Daniel Birkbeck Orthopaedic Hand Surgery Physician · Napa, CA NPI 1265433254 California Hand Rehabilitation Inc Occupational Therapist · Napa, CA NPI 1417932484 Adventist Health Silverado Psychiatric Clinic Specialist · Napa, CA NPI 1215904339 Napa Valley Orthopaedic Medical Group, Inc Orthopaedic Surgery Physician · Napa, CA NPI 1710934575 Michael Shifflett Orthopaedic Surgery Physician · Napa, CA NPI 1861439515 John Diana Adult Reconstructive Orthopaedic Surgery Physician · Napa, CA NPI 1649297540 Jason Huffman Orthopaedic Surgery of the Spine Physician · Napa, CA NPI 1144240003 Brian Freeto Sports Medicine (Orthopaedic Surgery) Physician · Napa, CA NPI 1962573576
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-17.