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

Dr. Susan Holstine, DO

Individual provider Internal Medicine Physician · NPI 1245299619

Dr. Susan Holstine, DO is a Hospitalist in Bellingham, Washington. Graduated from University of New England, College of Osteo Medicine in 1992, 34 years ago. Practices with South Sound Inpatient Physicians PLLC, a 427-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
34
Trained at
University of New England, College of Osteo Medicine
Licensed in
WA
In the registry since
2006
Specialties on file
2
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

2901 Squalicum Pkwy
Bellingham, WA 98225-1851 Not confirmed with CMS for 19 years — call before visiting
Phone: (360) 734-5400
Fax: (360) 756-6847
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OP00001836 (WA)
Hospitalist Physician Taxonomy 208M00000X · Licence OP00001836 (WA)

Record details

NPI number1245299619
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 22, 2006
Last updated in NPPESOctober 18, 2007

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 1992 (34 years in practice)
Group practice South Sound Inpatient Physicians Pllc — 427 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients150
Services billed 456 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

  • Peacehealth St Joseph Medical Center Hospital · Bellingham, WA

Colleagues at South Sound Inpatient Physicians PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 427 clinicians in the practice; 12 are shown here.

Other providers in Bellingham