Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Shannon Rhea Sitzmann, DNP, APRN, FNP-BC

Individual provider Family Medicine Physician · NPI 1023665429

Dr. Shannon Rhea Sitzmann, DNP, APRN, FNP-BC is a Family Medicine Physician in O Fallon, Missouri. Licensed in Missouri. Registered with an NPI since 2019.

Licensed in
MO
In the registry since
2019
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

1002 Peruque Crossing Ct Ste 101B
O Fallon, MO 63366-2381
Phone: (636) 733-4252
Fax: (636) 206-8396
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2019030793 (MO)

Record details

NPI number1023665429
Entity typeIndividual (Type 1)
GenderFemale
Credentials DNP , APRN , FNP-BC
Sole proprietorNo
NPI enumeratedAugust 20, 2019
Last updated in NPPESSeptember 17, 2026
Certification dateSeptember 17, 2026

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