Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Gary Michael Nissen, MD

Individual provider Anesthesiology Physician · NPI 1124550520

Gary Michael Nissen, MD is an Anesthesiology in Springfield, Oregon. Graduated from Creighton University School of Medicine in 2017, 9 years ago. Practices with Northwest Anesthesia Physicians PC, a 92-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
9
Trained at
Creighton University School of Medicine
Licensed in
OR
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3333 Riverbend Dr
Springfield, OR 97477-8800
Phone: (541) 681-5124
Show map & directions

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

Additional practice locations (1)

  • 925 Seneca St, Seattle, WA 98101 — (206) 583-6079

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD203881 (OR)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1124550520
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2017
Last updated in NPPESMarch 22, 2022
Certification dateMarch 22, 2022
Mailing addressPo Box 7247, Springfield, OR 97475-0011

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Northwest Anesthesia Physicians Pc — 92 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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