Katherine Powell, RN, NP
Psychiatric/Mental Health Nurse Practitioner · Portland, OR
Katherine Powell, RN, NP is a psychiatric/mental health nurse practitioner with a practice address in Portland, Oregon, and NPI 1518165976, issued on Jul 6, 2007. Check the license (Oregon 20125001, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Powell
- Credential
- RN, NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 20125001 OR
Self-reported in NPPES; status is on the state search - Practice location
- 101 SW Main St, Portland, OR 97204
- Phone
- (503) 278-5665
- Enumerated
- Jul 6, 2007
- Entity
- Type 1 · individual
Also registered at 101 SW Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Powell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 20125001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
66% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
303 Medicare Part D claims for 19 beneficiaries, against an average of 895 among the 22,437 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Zolpidem Tartrate31 claims
- Risperidone27 claims
- Dextroamphetamine-Amphetamine26 claims
- Buprenorphine-Naloxone25 claims
- Dextroamphetamine-Amphet Er19 claims
- Mirtazapine17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Psychiatric/Mental Health Nurse Practitioner providers in Oregon
There are 879 psychiatric/mental health nurse practitioner records in Oregon.
Other psychiatric/mental health nurse practitioner records in Oregon
- Doris Aasland, NPOregon City, OR1356356836
- Gemechis AbdissaPortland, OR1801710660
- Abdul Munir Abdul GhiyasPortland, OR1467373274
- Olubunmi Aborisade, DNPPortland, OR1689379364
- Debra Achenbach, PMHNPCottage Grove, OR1477612869
- Nicholas Adair, PMHNP-BCSalem, OR1912521816
- Katie Adams, PMHNPCoos Bay, OR1619737210
- Tosin Addeh, APRN, PMHNP-BCBeaverton, OR1871342097
- Adenike Adelakun, PMHNPKlamath Falls, OR1558073858
- Doris Agu, DNP, MSN, MPH, PMHNPPortland, OR1033733027
Common questions
What is Katherine Powell, RN, NP's NPI number?
Katherine Powell, RN, NP's National Provider Identifier (NPI) is 1518165976, issued on Jul 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Powell, RN, NP located?
The NPPES record lists a practice address at 101 SW Main St, Portland, OR, 97204. Phone: (503) 278-5665. Providers update this record themselves, so call before visiting.
How can I verify Katherine Powell, RN, NP's license?
NPPES lists Oregon license number 20125001, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Powell, RN, NP prescribe under Medicare Part D?
In 2024, Katherine Powell, RN, NP had 303 Medicare Part D claims for 19 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 895. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.