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

Dr. Niels C S Nielsen, MD

Individual provider Psychiatry Physician · NPI 1497969893

Dr. Niels C S Nielsen, MD is a Psychiatry Physician in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007
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

4020 E Madison St Ste 240
Seattle, WA 98112-3150
Phone: (206) 456-2559
Fax: (888) 419-3592
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD60133289 (WA)

Record details

NPI number1497969893
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 9, 2007
Last updated in NPPESMay 25, 2022
Certification dateMay 25, 2022

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