Karen Louise Davis, MSN
Nurse Practitioner · Hilo, HI
Karen Louise Davis, MSN is a nurse practitioner with a practice address in Hilo, Hawaii, and NPI 1275863870, issued on Jan 4, 2010. Check the license (Hawaii APRN-4417-0, as entered in NPPES) with the Hawaii board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Louise Davis
- Credential
- MSN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- APRN-4417-0 HI
RN-116716-0 HI
Self-reported in NPPES; status is on the state search - Practice location
- 275 Ponahawai St Ste 202, Hilo, HI 96720
- Phone
- (808) 523-0445
- Enumerated
- Jan 4, 2010
- Record last updated
- Apr 15, 2024
- Fax
- (808) 356-3380
- Medicare enrollment
- Enrolled (PECOS I20240307002299); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 220 in Hawaii → Look up another NPI →
Verify Karen Louise Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
Search for license APRN-4417-0Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average nurse practitioner in 2024
170 Medicare Part D claims for 61 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Furosemide25 claims
- Calcitriol22 claims
- Sevelamer Carbonate14 claims
- Cinacalcet Hcl12 claims
- Famotidine11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $254.07
10 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hawaii Kidney Specialists LLPHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Louise Davis among 220 nurse practitioner records in Hawaii
Karen Louise Davis, MSN is one of 220 nurse practitioner records with a practice address in Hawaii. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 31% of them.
- NPI issued2010 · 31% of these records are older, 68% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1991 · median 2018 among the 124 with a school on file
- Record last updated2024 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in Hawaii
There are 220 nurse practitioner records in Hawaii.
All 220 in Hawaii → Every provider in Hilo → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Leilani Aldrich, APRNHilo, HI 967201285982876
- Noemi Arzaga, DNP, FNP-BCHilo, HI 967201336508563
- Bobbie Jean Crivello, RNHilo, HI 967201740838150
- Mie Fowler, APRNHilo, HI 967201396222782
- Malia Keolanui, APRNHilo, HI 967201558870600
- Debra Kettleson, APRNHilo, HI 967201467536680
- Brenda Orcutt, DNP, APRN, FNPHilo, HI 967201205303716
- Joanna Smith, DNPHilo, HI 967201831689959
Common questions
What is Karen Louise Davis, MSN's NPI number?
Karen Louise Davis, MSN's National Provider Identifier (NPI) is 1275863870, issued on Jan 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Karen Louise Davis, MSN located?
The NPPES record lists a practice address at 275 Ponahawai St Ste 202, Hilo, HI, 96720. Phone: (808) 523-0445. Providers update this record themselves, so call before visiting.
How can I verify Karen Louise Davis, MSN's license?
NPPES lists Hawaii license number APRN-4417-0, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Louise Davis, MSN prescribe under Medicare Part D?
In 2024, Karen Louise Davis, MSN had 170 Medicare Part D claims for 61 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.