Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Patrick S O'Hollaren, MD

Individual provider Pediatric Urology Physician · NPI 1891782868

Patrick S O'Hollaren, MD is a Pediatric Urology Physician in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2005.

Licensed in
OR
In the registry since
2005
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

9427 SW Barnes Rd Ste 395
Portland, OR 97225-6652
Phone: (503) 216-6050
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Urology Physician (primary) Taxonomy 2088P0231X · Licence MD18712 (OR)

Record details

NPI number1891782868
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 4, 2005
Last updated in NPPESJanuary 19, 2021
Certification dateJanuary 19, 2021

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