Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Rosa Margarita Casillas, ARNP

Individual provider Nurse Practitioner · NPI 1831831262

Rosa Margarita Casillas, ARNP is a Nurse Practitioner in Kennewick, Washington. Qualified in 2022, 4 years ago. Practices with Kadlec Regional Medical Center, a 396-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
4
Licensed in
WA
In the registry since
2022
Specialties on file
3
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

6710 W Okanogan Pl
Kennewick, WA 99336-8001
Phone: (509) 942-2528
Fax: (509) 783-2008
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2710 Crimson Way, Richland, WA 99354-1671 — (509) 200-9007

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence AP61312013 (WA)
Nurse Practitioner Taxonomy 363L00000X · Licence AP61312013 (WA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1831831262
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedApril 7, 2022
Last updated in NPPESNovember 14, 2023
Certification dateNovember 14, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Kadlec Regional Medical Center — 396 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients432
Services billed 1,082 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Kadlec Regional Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 396 clinicians in the practice; 12 are shown here.

Other providers in Kennewick