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

Timothy W Bax, MD

Individual provider Surgery Physician · NPI 1255303301

Timothy W Bax, MD practises General Surgery in Spokane, Washington. Graduated from Oregon Health Sciences University School of Medicine in 1992, 34 years ago. Practices with Providence Health and Services Washington, a 776-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
34
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

217 W Cataldo Ave Fl 3
Spokane, WA 99201-2217
Phone: (509) 747-6194
Fax: (509) 838-0824
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MD00036060 (WA)

Record details

NPI number1255303301
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 3, 2006
Last updated in NPPESNovember 28, 2022
Certification dateNovember 28, 2022

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Providence Health And Services Washington — 776 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 37 times · 59th percentile
Colonoscopy 1–10 times
Hernia repair (minimally invasive) 1–10 times
Hernia repair - groin (open) 1–10 times
Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients231
Services billed 464 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

  • Mid Valley Hospital & Clinic Hospital · Omak, WA · listed as Okanogan County Public Hospital District No 3
  • Prov Sacred Hrt Med Ctr & Childs Hosp. Hospital · Spokane, WA
  • Providence Holy Family Hospital Hospital · Spokane, WA

Colleagues at Providence Health and Services Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 776 clinicians in the practice; 12 are shown here.

Other providers in Spokane