Rachel O Brien, DC
NPI 1982317848 · Chiropractor · O Fallon, MO
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachel O Brien, DC is a Chiropractor provider in O Fallon, MO (NPI 1982317848).
Provider details
- NPI number
- 1982317848
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Female
- Sole proprietor
- No
- License
- 2023000335 (MO)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2023-01-05
- Last updated
- 2023-03-26
- Certified
- 2023-03-26
Frequently asked questions
- What is Rachel O Brien's NPI number?
- Rachel O Brien's National Provider Identifier (NPI) is 1982317848, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel O Brien's specialty?
- Rachel O Brien is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Rachel O Brien located?
- Rachel O Brien's practice location on file with NPPES is 2917 Highway K Ste F, O Fallon, MO 63368-7879.
- What is Rachel O Brien's phone number?
- The practice phone number listed in the NPPES registry for Rachel O Brien is (314) 239-2427.
- Does Rachel O Brien accept Medicare?
- Rachel O Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachel O Brien's NPI active?
- Yes — Rachel O Brien's NPI (1982317848) is active in the NPPES registry as of the last update on 2023-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.