Martha Williams, P.T.
NPI 1689748451 · Physical Therapist · Vacaville, CA
Martha Williams, P.T. is a Physical Therapist provider in Vacaville, CA (NPI 1689748451).
Provider details
- NPI number
- 1689748451
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- P.T.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PT9761 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Martha Williams's NPI number?
- Martha Williams's National Provider Identifier (NPI) is 1689748451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Williams's specialty?
- Martha Williams is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Martha Williams located?
- Martha Williams's practice location on file with NPPES is 81 Cernon St, Vacaville, CA 95688-2803.
- What is Martha Williams's phone number?
- The practice phone number listed in the NPPES registry for Martha Williams is (707) 447-9750.
- Is Martha Williams's NPI active?
- Yes — Martha Williams's NPI (1689748451) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.