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Chantal O'Brien, MD

Pain Medicine (Psychiatry & Neurology) Physician in Aurora, CO · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1124165402

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Registry record

Entity type Individual (Type 1)
Name Chantal O'Brien
Credential MD
Sex Female
Practice address 12605 E 16th Ave, Aurora, CO, 80045
Phone (720) 848-0000
Enumeration date Jan 30, 2007
Last updated in NPPES Apr 16, 2021

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 47116 (CO) Secondary
2084P2900X Pain Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License DR.0047116 (CO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
94382867 Medicaid CO -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Chantal O'Brien?
The National Provider Identifier (NPI) for Chantal O'Brien is 1124165402, a Type 1 (individual) record in the CMS NPPES registry.
Where does Chantal O'Brien practice?
The practice location on file with NPPES is in Aurora, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-16.