Jeffrey Armstrong, M.D.
NPI 1376641548 · Pediatrics Physician · Orange, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Armstrong, M.D. is a Pediatrics Physician provider in Orange, CA (NPI 1376641548).
Provider details
- NPI number
- 1376641548
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G65001 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-09-20
- Last updated
- 2008-04-30
Frequently asked questions
- What is Jeffrey Armstrong's NPI number?
- Jeffrey Armstrong's National Provider Identifier (NPI) is 1376641548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Armstrong's specialty?
- Jeffrey Armstrong is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Armstrong located?
- Jeffrey Armstrong's practice location on file with NPPES is 455 S Main St, Orange, CA 92868-3835.
- What is Jeffrey Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Armstrong is (714) 532-8826.
- Does Jeffrey Armstrong accept Medicare?
- Jeffrey Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Armstrong's NPI active?
- Yes — Jeffrey Armstrong's NPI (1376641548) is active in the NPPES registry as of the last update on 2008-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.