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Brett Underwood, D.C.
NPI 1366779589 · Chiropractor · Brea, CA
Brett Underwood, D.C. is a Chiropractor provider in Brea, CA (NPI 1366779589).
Provider details
- NPI number
- 1366779589
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 31420 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
3000 E Birch St
Ste 110
Brea, CA 92821-6261
Phone: (714) 588-6404
Street-level locationGet directions
Mailing address
690 Oakhaven Ave
Brea, CA 92823-6331
Registry dates
- Enumerated
- 2009-11-09
- Last updated
- 2017-04-13
Frequently asked questions
- What is Brett Underwood's NPI number?
- Brett Underwood's National Provider Identifier (NPI) is 1366779589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brett Underwood's specialty?
- Brett Underwood is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Brett Underwood located?
- Brett Underwood's practice location on file with NPPES is 3000 E Birch St, Brea, CA 92821-6261.
- What is Brett Underwood's phone number?
- The practice phone number listed in the NPPES registry for Brett Underwood is (714) 588-6404.
- Is Brett Underwood's NPI active?
- Yes — Brett Underwood's NPI (1366779589) is active in the NPPES registry as of the last update on 2017-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.