Joshua Siembieda, M.D.
NPI 1225322357 · Pediatrics Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Siembieda, M.D. is a Pediatrics Physician provider in Torrance, CA (NPI 1225322357).
Provider details
- NPI number
- 1225322357
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A124630 (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
15 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
- 2011-06-07
- Last updated
- 2014-09-20
Frequently asked questions
- What is Joshua Siembieda's NPI number?
- Joshua Siembieda's National Provider Identifier (NPI) is 1225322357, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Siembieda's specialty?
- Joshua Siembieda is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua Siembieda located?
- Joshua Siembieda's practice location on file with NPPES is 1000 W Carson St, Torrance, CA 90502-2004.
- What is Joshua Siembieda's phone number?
- The practice phone number listed in the NPPES registry for Joshua Siembieda is (310) 222-3503.
- Does Joshua Siembieda accept Medicare?
- Joshua Siembieda is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Siembieda's NPI active?
- Yes — Joshua Siembieda's NPI (1225322357) is active in the NPPES registry as of the last update on 2014-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.