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

Mary Osing Welch, RN, PMHNP

Individual provider Registered Nurse · NPI 1679724819

Mary Osing Welch, RN, PMHNP is a Nurse Practitioner in Portland, Oregon. Qualified in 2008, 18 years ago. Practices with Cascadia Health, a 62-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
18
Licensed in
OR
In the registry since
2008
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

See every abbreviation used in this directory →

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Practice location Address checks out

10373 NE Hancock St Ste 200
Portland, OR 97220-3873
Phone: (503) 253-6754
Fax: (503) 253-8020
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 8383 Ne Sandy Blvd, Portland, OR 97220-4948 — (503) 253-0964

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 200850133NP (OR)
Registered Nurse Taxonomy 163W00000X · Licence 200642765RN (OR)

Record details

NPI number1679724819
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , PMHNP
Sole proprietorNo
NPI enumeratedOctober 7, 2008
Last updated in NPPESMarch 6, 2026
Certification dateMarch 6, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Cascadia Health — 62 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $59 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Cascadia Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 62 clinicians in the practice; 12 are shown here.

Other providers in Portland