Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Katherine E Clancy, FNP

Individual provider Family Nurse Practitioner · NPI 1568724284

Katherine E Clancy, FNP is a Nurse Practitioner in O Fallon, Missouri. Qualified in 2011, 15 years ago. Practices with Physician Groups Lc, a 524-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
15
Licensed in
MO
In the registry since
2012
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

2630 Highway K
O Fallon, MO 63368-6624
Phone: (636) 980-5300
Fax: (636) 980-5344
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 2012009885 (MO)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 2012009885 (MO)

Record details

NPI number1568724284
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedJune 8, 2012
Last updated in NPPESDecember 9, 2025
Certification dateDecember 9, 2025
Mailing address660 Mason Ridge Center Dr Ste 300, Saint Louis, MO 63141-8512

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Physician Groups Lc — 524 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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