Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Martha Jeane Jewell, PT PHD
Physical Therapist in Brentwood, CA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548531650
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Registry record
Entity type Individual (Type 1)
Name Ms. Martha Jeane Jewell
Credential PT PHD
Sex Female
Practice address 160 Winesap Dr, Brentwood, CA, 94513
Phone (925) 516-8382
Enumeration date Jan 20, 2012
Last updated in NPPES Jan 20, 2012
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1634 (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
What specialty is Martha Jewell?
Martha Jewell is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-20.