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

Peggy Ann Nicolai, FNP

Individual provider Family Nurse Practitioner · NPI 1518390236

Peggy Ann Nicolai, FNP is a Family Nurse Practitioner in Chesterfield, Missouri. Licensed in Missouri. Registered with an NPI since 2013.

Licensed in
MO
In the registry since
2013
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

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Practice location Address checks out

232 S Woods Mill Rd
Chesterfield, MO 63017-3417 Not confirmed with CMS for 13 years — call before visiting
Phone: (314) 434-1500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 2013009544 (MO)

Record details

NPI number1518390236
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedAugust 16, 2013
Last updated in NPPESAugust 16, 2013

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 patients87
Services billed 95 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

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