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

Matthew M Oswin, DO

Individual provider Orthopaedic Surgery Physician · NPI 1336344944

Matthew M Oswin, DO practises Orthopedic Surgery in Bellingham, Washington. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2002, 24 years ago. Practices with Peacehealth, a 290-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
24
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
WA
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3015 Squalicum Pkwy Ste 200
Bellingham, WA 98225 Not confirmed with CMS for 15 years — call before visiting
Phone: (360) 733-2092
Fax: (360) 733-4013
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence OP00002206 (WA)

Record details

NPI number1336344944
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 15, 2007
Last updated in NPPESNovember 19, 2010

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 2002 (24 years in practice)
Group practice Peacehealth — 290 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 limb (arm) arthroscopy (minimally invasive joint repair) 112 times · 97th percentile
Lower limb (leg) arthroscopy (minimally invasive joint repair) 11 times · 81st percentile
Hip replacement 23 times · 70th percentile
Knee replacement 35 times · 69th percentile

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 patients369
Services billed 1,171 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.

Colleagues at Peacehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 290 clinicians in the practice; 12 are shown here.

Other providers in Bellingham