Provider Profile
Crystal O'Brien
Unclaimed ProfileAbout Crystal O'brien
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (636) 685-7795
- Email not available
Practice Locations
224 S WOODS MILL RD STE 410S
Chesterfield, MO 63017
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What kind of doctor is Dr. O'Brien?
Dr. O'Brien is a nurse practitioner in Chesterfield, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Nurse Practitioner — Adult Health”.
NPI registry
What is Dr. O'Brien's address?
Dr. O'Brien is listed at 224 S WOODS MILL RD STE 410S, Chesterfield, MO 63017. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. O'Brien?
The number on file is (636) 685-7795. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. O'Brien's NPI number?
Dr. O'Brien's National Provider Identifier is 1366898678. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. O'Brien been practicing?
Dr. O'Brien has 10+ years experience. Registered with an NPI since 2016. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.