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

Mariah Greiner, FNP

Individual provider Family Nurse Practitioner · NPI 1619347010

Mariah Greiner, FNP is a Family Nurse Practitioner in Buffalo, New York. Licensed in New York. Registered with an NPI since 2015.

Licensed in
NY
In the registry since
2015
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 →

Practice location Address checks out

219 Bryant St
Buffalo, NY 14222-2006
Phone: (716) 878-1689
Fax: (716) 878-1862
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence F339466-1 (NY)

Record details

NPI number1619347010
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedSeptember 29, 2015
Last updated in NPPESSeptember 29, 2015

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