Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Carmen M. Oconnor, APRN, BC

Individual provider Adult Health Nurse Practitioner · NPI 1841287067

Mrs. Carmen M. Oconnor, APRN, BC is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2002, 24 years ago. Practices with Mercy Clinic Heart and Vascular LLC, a 111-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
24
Licensed in
MO
In the registry since
2005
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
BC — Board Certified
Appended to another credential to show current board certification, as in APRN-BC.

See every abbreviation used in this directory →

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Practice location Address checks out

10012 Kennerly Rd Ste 300
Saint Louis, MO 63128
Phone: (314) 842-0602
Fax: (314) 842-4372
Show map & directions

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

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 133519 (MO)

Record details

NPI number1841287067
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , BC
Sole proprietorNo
NPI enumeratedOctober 3, 2005
Last updated in NPPESJune 5, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Mercy Clinic Heart And Vascular Llc — 111 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients157
Services billed 216 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $705 21 payments · a meal or drink at a meeting or visit, not a fee
Education $99 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Clinic Heart and Vascular LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 111 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis