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

Mary Kate Mellin, FNP

Individual provider Family Nurse Practitioner · NPI 1265108013

Mary Kate Mellin, FNP is a Family Nurse Practitioner in Middletown, Delaware. Licensed in Delaware. Registered with an NPI since 2021.

Licensed in
DE
In the registry since
2021
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

621 Middletown Odessa Rd
Middletown, DE 19709-9602
Phone: (302) 203-2230
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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 LG-0011619 (DE)

Record details

NPI number1265108013
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedAugust 20, 2021
Last updated in NPPESAugust 20, 2021
Certification dateAugust 20, 2021

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 patients66
Services billed 96 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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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