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

Mr. William Thomas Ryan Meristem, BA, QMHA

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1548602774

Mr. William Thomas Ryan Meristem, BA, QMHA is an Addiction (Substance Use Disorder) Counselor in Portland, Oregon. Registered with an NPI since 2013.

In the registry since
2013
What do these letters mean?
BA — Bachelor of Arts
An undergraduate arts degree.

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Practice location Partly verified

Some contact details are missing from the federal record.

De Paul Treatment Centers 1312 SW Washington
Portland, OR 97208-3007
Phone: (503) 535-1150
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1548602774
Entity typeIndividual (Type 1)
GenderMale
Credentials BA , QMHA
Sole proprietorNo
NPI enumeratedJuly 30, 2013
Last updated in NPPESOctober 28, 2014

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