Emma Caroline Duncan, APN
Nurse Practitioner (CMS) · Oxnard, CA
At a glance
St. John's Regional Medical Center - 1600 N Rose Avenue, Oxnard, CA 93030
NPPES record updated Mar 20, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
St. John's Regional Medical Center - 1600 N Rose AvenueOxnard, CA 93030
Additional reported practice locations
1910 Outlet Center DrOxnard, CA 930360677
Phone: 8054852400
Fax: 8054853025 251 E Huron
Northwestern Memorial Hospital
Chicago, IL 60611
Phone: 3122084829 St. John's Pleasant Valley Hospital - 2309 Antonio Ave
Camarillo, CA 93010
Phone: 0000000000
Fax: 8054853025
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2015
- CMS specialties
- Nurse Practitioner
Practice groups
Reported hospital affiliations
- Pih Health Good Samaritan Hospital Los Angeles, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Nurse Practitioner (CMS)
- Taxonomy code
- 363LA2100X
- Enumeration date
- Mar 24, 2016
- Record updated
- Mar 20, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- APN
Reported taxonomies and licenses
363L00000X
License reported: 95011709 CA
363LA2100X · Primary
License reported: 209.013732 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
St. John's Regional Medical Center - 1600 N Rose AvenueOxnard, CA 93030
- Phone
- (000) 000-0000
- Fax
- (805) 485-3025
Mailing address
2043 N MOHAWK STUNIT 1S
CHICAGO, IL 606144565
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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