Twyla Jean Masterson, RN, NP
Nurse Practitioner · Coeur D Alene, ID
Twyla Jean Masterson, RN, NP is a nurse practitioner with a practice address in Coeur D Alene, Idaho, and NPI 1366548661, issued on Sep 15, 2006. Check the license (Idaho NP-471A, as entered in NPPES) with the Idaho board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Twyla Jean Masterson
- Credential
- RN, NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- NP-471A ID
15400 ID
Self-reported in NPPES; status is on the state search - Practice location
- 850 W Ironwood Dr Ste 300, Coeur D Alene, ID 83814
- Phone
- (208) 457-7078
- Enumerated
- Sep 15, 2006
- Record last updated
- Nov 11, 2024
- Fax
- (208) 457-7079
- Medicaid ID
- 1366548661 ID
- Medicare enrollment
- Enrolled (PECOS I20061205000036); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 593 in Idaho → Look up another NPI →
Also registered at 850 W Ironwood Dr Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Twyla Jean Masterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Idaho board licenses this profession
Search for license NP-471ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average nurse practitioner in 2024
54 Medicare Part D claims for 39 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Diazepam29 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: $22.30
1 payment: food and beverage; the largest payer was Pfizer Inc. 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.
3 hospitals and group practices
- Benewah Community HospitalSt Maries, ID · Critical Access Hospitals
- Inland Northwest Anesthesia PLLCCoeur D Alene, ID
- Meza Post Acute And Long Term Care PLLCCoeur D Alene, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Twyla Jean Masterson among 593 nurse practitioner records in Idaho
Twyla Jean Masterson, RN, NP 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 80% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1999 · median 2018 among the 382 with a school on file
- Record last updated2024 · 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).
96 nurse practitioner records list a practice address in Coeur D Alene
They are 96 of the 2,341 NPPES records with a practice address in Coeur D Alene, and 593 nurse practitioner records in Idaho.
All 593 in Idaho → Every provider in Coeur D Alene → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Chad Bailey, ARNPCoeur D Alene, ID 838141487756227
- Lisa Breisacher, L.N.P.Coeur D Alene, ID 838141700883303
- Anthony Broderick, NPCoeur D Alene, ID 838141194820555
- Mary Duff, ARNPCoeur D Alene, ID 838141013987585
- Susan Dummer, NPCoeur D Alene, ID 838141073540605
- J Ely, N.P.Coeur D Alene, ID 838141275587180
- Paul Fontana, ARNPCoeur D Alene, ID 838141275582751
- Tanya Heidenreich, CFNPCoeur D Alene, ID 838141689689085
Common questions
What is Twyla Jean Masterson, RN, NP's NPI number?
Twyla Jean Masterson, RN, NP's National Provider Identifier (NPI) is 1366548661, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Twyla Jean Masterson, RN, NP located?
The NPPES record lists a practice address at 850 W Ironwood Dr Ste 300, Coeur D Alene, ID, 83814. Phone: (208) 457-7078. Providers update this record themselves, so call before visiting.
How can I verify Twyla Jean Masterson, RN, NP's license?
NPPES lists Idaho license number NP-471A, as entered by the provider. Search the Idaho board that licenses this profession; the NPPES record confirms identity only.
How much does Twyla Jean Masterson, RN, NP prescribe under Medicare Part D?
In 2024, Twyla Jean Masterson, RN, NP had 54 Medicare Part D claims for 39 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.