Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Crystal O'Brien

Individual provider Adult Health Nurse Practitioner · NPI 1366898678

Crystal O'Brien is an Adult Health Nurse Practitioner in Chesterfield, Missouri. Practices as a sole proprietor and works from 2 locations. Licensed in Missouri.

Licensed in
MO
In the registry since
2016

Practice location Address checks out

224 S Woods Mill Rd Ste 410S
Chesterfield, MO 63017-3605
Phone: (636) 685-7795
Fax: (314) 590-5959
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5551 Winghaven Blvd Ste 260, O Fallon, MO 63368-3630 — (636) 685-7795

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 2016003050 (MO)

Record details

NPI number1366898678
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedMay 5, 2016
Last updated in NPPESSeptember 3, 2020
Certification dateSeptember 3, 2020
Mailing address3221 McKelvey Rd Ste 301, Bridgeton, MO 63044-2551

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