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

Hillary Cathleen Greene, FNP, RN

Individual provider Registered Nurse · NPI 1871955070

Hillary Cathleen Greene, FNP, RN is a Nurse Practitioner in South Kingstown, Rhode Island. Qualified in 2017, 9 years ago. Practices with Thundermist Health Center, a 165-clinician group and accepts Medicare assignment. Licensed in Massachusetts, New York and Rhode Island.

Years since qualifying
9
Licensed in
MA, NY, RI
In the registry since
2016
Specialties on file
3
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

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Practice location Address checks out

1 River St
South Kingstown, RI 02879-3214
Phone: (401) 783-5646
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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 APRN01774 (RI)
Registered Nurse Taxonomy 163W00000X · Licence RN2306299 (MA)
Registered Nurse Taxonomy 163W00000X · Licence 703259-1 (NY)

Record details

NPI number1871955070
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP , RN
Sole proprietorNo
NPI enumeratedMarch 25, 2016
Last updated in NPPESJune 23, 2025
Certification dateJune 23, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Thundermist Health Center — 165 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients21
Services billed 33 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • The Miriam Hospital Hospital · Providence, RI
  • South County Hospital Inc Hospital · Wakefield, RI

Colleagues at Thundermist Health Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 165 clinicians in the practice; 12 are shown here.

Other providers in South Kingstown