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

Karen Louise Davis, MSN

Individual provider Nurse Practitioner · NPI 1275863870

Karen Louise Davis, MSN is a Nurse Practitioner in Hilo, Hawaii. Qualified in 1991, 35 years ago. Practices with Hawaii Kidney Specialists LLP, a 29-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Hawaii.

Years since qualifying
35
Licensed in
HI
In the registry since
2010
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

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Practice location Address checks out

275 Ponahawai St Ste 202
Hilo, HI 96720-3074
Phone: (808) 523-0445
Fax: (808) 356-3380
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1520 Liliha St Ste 601, Honolulu, HI 96817-3564 — (808) 523-0445

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence APRN-4417-0 (HI)
Nurse Practitioner Taxonomy 363L00000X · Licence RN-116716-0 (HI)

Record details

NPI number1275863870
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN
Sole proprietorNo
NPI enumeratedJanuary 4, 2010
Last updated in NPPESApril 15, 2024
Certification dateApril 15, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Hawaii Kidney Specialists Llp — 29 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 patients69
Services billed 149 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $185 7 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hawaii Kidney Specialists LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 29 clinicians in the practice; 12 are shown here.

Other providers in Hilo