Margaret Karoline Alexander, ND, MS, PMHNP
Psychiatric/Mental Health Nurse Practitioner · Portland, OR
Margaret Karoline Alexander, ND, MS, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Portland, Oregon, and NPI 1326084567, issued on Jun 22, 2006. Check the license (Oregon 20135004NP, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Karoline Alexander
- Credential
- ND, MS, PMHNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 20135004NP OR
200650033NP OR
Self-reported in NPPES; status is on the state search - Practice location
- 3231 SE 50TH Ave, Portland, OR 97206
- Phone
- (503) 775-1957
- Enumerated
- Jun 22, 2006
- Record last updated
- Jul 30, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,217 in Oregon → Look up another NPI →
Also registered at 3231 SE 50TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Karoline Alexander in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 20135004NPCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
81 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.
Most prescribed
- Dextroamphetamine-Amphet Er24 claims
- Dextroamphetamine-Amphetamine23 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.
Margaret Karoline Alexander among 1,217 psychiatric/mental health nurse practitioner records in Oregon
Margaret Karoline Alexander, ND, MS, PMHNP is one of 1,217 psychiatric/mental health nurse practitioner records with a practice address in Oregon. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 86% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2018 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Oregon
There are 1,217 psychiatric/mental health nurse practitioner records in Oregon.
All 1,217 in Oregon → Every provider in Portland → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Brandon Bosch, PMHNP, FNP-BCPortland, OR 972061902203367
- Mary Bushnell, PMHNPPortland, OR 972061336287085
- Kristen Cole, PMHNPPortland, OR 972061366174914
- Whitney Gilkerson, PMHNPPortland, OR 972061316885544
- Heather Hemmeger, PHARMD, MSN, PMHNPPortland, OR 972061639539471
- Debra Kate, PMHNPPortland, OR 972061144314592
- Sarah Notton, RN, PMHNPPortland, OR 972061194065250
- Leighann Pilkington, PMHNP-BCPortland, OR 972061114749017
Common questions
What is Margaret Karoline Alexander, ND, MS, PMHNP's NPI number?
Margaret Karoline Alexander, ND, MS, PMHNP's National Provider Identifier (NPI) is 1326084567, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Karoline Alexander, ND, MS, PMHNP located?
The NPPES record lists a practice address at 3231 SE 50TH Ave, Portland, OR, 97206. Phone: (503) 775-1957. Providers update this record themselves, so call before visiting.
How can I verify Margaret Karoline Alexander, ND, MS, PMHNP's license?
NPPES lists Oregon license number 20135004NP, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Karoline Alexander, ND, MS, PMHNP prescribe under Medicare Part D?
In 2024, Margaret Karoline Alexander, ND, MS, PMHNP had 81 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.