Gary Armstrong
NPI 1689830390 · Rehabilitation Practitioner · Westminster, CA
Gary Armstrong is a Rehabilitation Practitioner provider in Westminster, CA (NPI 1689830390).
Provider details
- NPI number
- 1689830390
- Entity type
- Individual
- Primary specialty
- Rehabilitation PractitionerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
17 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2008-08-01
- Last updated
- 2008-08-01
Frequently asked questions
- What is Gary Armstrong's NPI number?
- Gary Armstrong's National Provider Identifier (NPI) is 1689830390, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Armstrong's specialty?
- Gary Armstrong is listed in the NPPES registry with a primary specialty of Rehabilitation Practitioner (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Gary Armstrong located?
- Gary Armstrong's practice location on file with NPPES is 13950 Milton Ave, Westminster, CA 92683-2900.
- What is Gary Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Gary Armstrong is (714) 892-4100.
- Is Gary Armstrong's NPI active?
- Yes — Gary Armstrong's NPI (1689830390) is active in the NPPES registry as of the last update on 2008-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.