Mariann Williams , NP
Nurse Practitioner • Tonasket, WA
Professional Overview & Biography Verified Profile Summary
Mariann Williams, NP is a certified Nurse Practitioner practicing in Tonasket, WA. With approximately 32 years of clinical experience since completing medical education in 1994, Mariann Williams delivers high-quality medical care to the local community at 118 S WHITCOMB AVE.
Mariann Williams is affiliated with Okanogan County Public Hospital Dist No 4 and accepts Medicare assignment.
Frequently performed procedures and clinical services include urinalysis, manual test. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
118 S Whitcomb Ave
Tonasket, WA 988559287
Medicare Profile & Education
Other
1994
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Nurse Practitioner in Tonasket, WA
Practicing in Tonasket, WA (2339 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
81002
Urinalysis, manual test
|
24 | 18 | $14.88 | $3.43 |
Medical Specialties & State Licenses
CMS Verified: 2025-12-04NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Okanogan County Public Hospital Dist No 4
118 N Whitcomb Ave, Tonasket, WA 988558829
Phone: 5094863191
Okanogan County Public Hospital Dist No 4
203 S Western Ave, Tonasket, WA 988558803
Phone: 5094862151
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Family Medicine
Nurse Practitioner
Advanced Registered Nurse Practitioner
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
General Practice
Doctor of Medicine (M.D.)
Registered Nurse
Registered Nurse
Nurse Practitioner
Advanced Registered Nurse Practitioner, Family Nurse Practitioner (Certified)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 203 S WESTERN AVE, TONASKET, WA 988558803 (Tel: 5094863191)
Registered at 118 S WHITCOMB AVE, TONASKET, WA 988559287 (Tel: 5094863191)
Registered at 203 S. WESTERN AVE, C/O: CREDENTIALING, TONASKET, WA 98855 (Tel: 5094863191)
Nurse Practitioner (License #RN00056504 in WA)
NPI status registered as active in NPPES database
Registered at 1617 MAIN ST, OROVILLE, WA 988449380 (Tel: 5094763911)
Registered at 820 N CHELAN AVE, WENATCHEE, WA 988012028
Recorded as MARIANN WILLIAMS, NP
Nurse Practitioner (License #AP30003589 in WA)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
203 S Western Ave
Tonasket, WA 988558803
Phone: 5094863191
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.