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

Dr. Stephanie A. Nonas, MD

Individual provider Internal Medicine Physician · NPI 1871631051

Dr. Stephanie A. Nonas, MD is registered under Pulmonary Disease in Portland, Oregon. Graduated from Harvard Medical School in 2000, 26 years ago. Practices with University Professional Services, a 1,704-clinician group and accepts Medicare assignment. Licensed in Maryland and Oregon.

Years since qualifying
26
Trained at
Harvard Medical School
Licensed in
MD, OR
In the registry since
2007
Specialties on file
5
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

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3098 Not confirmed with CMS for 14 years — call before visiting
Phone: (503) 494-7296
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence MD27898 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence T3589 (MD)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence T3589 (MD)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence T3589 (MD)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence MD27898 (OR)

Record details

NPI number1871631051
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 1, 2007
Last updated in NPPESJune 12, 2012

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2000 (26 years in practice)
Group practice University Professional Services — 1704 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients51
Services billed 128 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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.

  • Ohsu Hospital And Clinics Hospital · Portland, OR

Colleagues at University Professional Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1704 clinicians in the practice; 12 are shown here.

Other providers in Portland