Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Natalia Maria Guzman-Seda, MD

Individual provider Anesthesiology Physician · NPI 1023546520

Natalia Maria Guzman-Seda, MD practises Anesthesiology in Portland, Oregon. Qualified in 2017, 9 years ago. Practices with University Anesthesiology Associates LLC, a 240-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
9
Licensed in
OR
In the registry since
2017
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 97239-3011
Phone: (503) 494-7641
Fax: (503) 494-4661
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1275 York Ave, New York, NY 10065-6007 — (212) 639-2000

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD212890 (OR)

Record details

NPI number1023546520
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2017
Last updated in NPPESSeptember 24, 2025
Certification dateSeptember 24, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice University Anesthesiology Associates Llc — 240 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 patients102
Services billed 147 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 Anesthesiology Associates LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 240 clinicians in the practice; 12 are shown here.

Other providers in Portland