Crystal O'Brien
NPI 1366898678 · Adult Health Nurse Practitioner · Chesterfield, MO
Crystal O'Brien is a Adult Health Nurse Practitioner provider in Chesterfield, MO (NPI 1366898678).
Provider details
- NPI number
- 1366898678
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2016003050 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 5551 Winghaven Blvd Ste 260O Fallon, MO 63368-3630Phone: (636) 685-7795Fax: (314) 590-5959
Registry dates
- Enumerated
- 2016-05-05
- Last updated
- 2020-09-03
- Certified
- 2020-09-03
Frequently asked questions
- What is Crystal O'Brien's NPI number?
- Crystal O'Brien's National Provider Identifier (NPI) is 1366898678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal O'Brien's specialty?
- Crystal O'Brien is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal O'Brien located?
- Crystal O'Brien's practice location on file with NPPES is 224 S Woods Mill Rd Ste 410s, Chesterfield, MO 63017-3605.
- What is Crystal O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Crystal O'Brien is (636) 685-7795.
- Is Crystal O'Brien's NPI active?
- Yes — Crystal O'Brien's NPI (1366898678) is active in the NPPES registry as of the last update on 2020-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.