Rex O. Underwood, RN
Nurse Practitioner · Kuna, ID
Rex O. Underwood, RN is a nurse practitioner with a practice address in Kuna, Idaho, and NPI 1477850014, issued on Feb 17, 2011. Check the license (Idaho 59203, as entered in NPPES) with the Idaho board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rex O. Underwood
- Credential
- RN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 59203 ID
Self-reported in NPPES; status is on the state search - Practice location
- 13900 S Pleasant Valley RD, Kuna, ID 83634
- Phone
- (208) 333-0037
- Enumerated
- Feb 17, 2011
- Record last updated
- Apr 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 593 in Idaho → Look up another NPI →
Verify Rex O. Underwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Idaho board licenses this profession
Search for license 59203Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average nurse practitioner in 2024
11 Medicare Part D claims, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
Rex O. Underwood among 593 nurse practitioner records in Idaho
Rex O. Underwood, RN is one of 593 nurse practitioner records with a practice address in Idaho. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 30% of them.
- NPI issued2011 · 30% of these records are older, 68% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2020 · 39% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 nurse practitioner records list a practice address in Kuna
They are 4 of the 191 NPPES records with a practice address in Kuna, and 593 nurse practitioner records in Idaho.
All 593 in Idaho → Every provider in Kuna → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Ivan BellezaKuna, ID 836341437086527
- Vicki Goss, APRNKuna, ID 836341770126062
- Emma Wolford, NPKuna, ID 836341952091886
- Anne Rushing, MSN, MAC, FNPMelba, ID 836411639525207
- Paul Battershell, C.R.N.PBoise, ID 836421891802310
- Jill Dawson, NPMeridian, ID 836421801908140
- Robyn Develle, DC, NP-CMeridian, ID 836421215954862
- Linda Gould, NPMeridian, ID 836421457499261
Common questions
What is Rex O. Underwood, RN's NPI number?
Rex O. Underwood, RN's National Provider Identifier (NPI) is 1477850014, issued on Feb 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Rex O. Underwood, RN located?
The NPPES record lists a practice address at 13900 S Pleasant Valley RD, Kuna, ID, 83634. Phone: (208) 333-0037. Providers update this record themselves, so call before visiting.
How can I verify Rex O. Underwood, RN's license?
NPPES lists Idaho license number 59203, as entered by the provider. Search the Idaho board that licenses this profession; the NPPES record confirms identity only.
How much does Rex O. Underwood, RN prescribe under Medicare Part D?
In 2024, Rex O. Underwood, RN had 11 Medicare Part D claims; 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.