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

MS. Twyla Jean Masterson, RN, NP

Individual provider Family Nurse Practitioner · NPI 1366548661

MS. Twyla Jean Masterson, RN, NP is a Nurse Practitioner in Coeur D Alene, Idaho. Qualified in 1999, 27 years ago. Practices with Benewah Community Hospital, a 41-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
27
Licensed in
ID
In the registry since
2006
Specialties on file
3
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

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Practice location Address checks out

850 W Ironwood Dr Ste 300
Coeur D Alene, ID 83814-4903
Phone: (208) 457-7078
Fax: (208) 457-7079
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 229 S 7th St Ste 101, St Maries, ID 83861-1803 — (208) 245-7079

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence NP-471A (ID)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence NP-471A (ID)
Registered Nurse Taxonomy 163W00000X · Licence 15400 (ID)

Record details

NPI number1366548661
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , NP
Sole proprietorNo
NPI enumeratedSeptember 15, 2006
Last updated in NPPESNovember 11, 2024
Certification dateNovember 11, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Benewah Community Hospital — 41 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients169
Services billed 512 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.

Colleagues at Benewah Community Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 41 clinicians in the practice; 12 are shown here.

Other providers in Coeur D Alene