Ariana E. Maileoi, FNP
Family Nurse Practitioner · Portland, OR
Ariana E. Maileoi, FNP is a family nurse practitioner with a practice address in Portland, Oregon, and NPI 1891402269, issued on Nov 3, 2022. Check the license (Oregon APRNNP10004723, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ariana E. Maileoi
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- APRNNP10004723 OR
AP61368513 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4224 NE Halsey St Ste 300, Portland, OR 97213
- Phone
- (503) 235-5509
- Enumerated
- Nov 3, 2022
- Record last updated
- Sep 25, 2025
- Fax
- (503) 235-5335
- Medicare enrollment
- Enrolled (PECOS I20230509002116); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,384 in Oregon → Look up another NPI →
Also registered at 4224 NE Halsey St Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Chun Khai Chong, MDNephrology Physician1932367117
- Maria Theresa De Jesus, MDNephrology Physician1083825251
- Todd Hilbelink, MDNephrology Physician1568440584
- Daniel Hutson, PACMedical Physician Assistant1598479297
- Tricia Jesperson, DONephrology Physician1174777973
Verify Ariana E. Maileoi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license APRNNP10004723Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average family nurse practitioner in 2024
379 Medicare Part D claims for 113 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Sevelamer Carbonate84 claims
- Calcium Acetate46 claims
- Velphoro38 claims
- Hydralazine Hcl37 claims
- Lanthanum Carbonate30 claims
- Amlodipine Besylate13 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.
Industry payments in 2024: $118.56
2 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northwest Renal Clinic IncPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariana E. Maileoi among 2,384 family nurse practitioner records in Oregon
Ariana E. Maileoi, FNP is one of 2,384 family nurse practitioner records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 82% of them.
- NPI issued2022 · 82% of these records are older, 13% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2017 among the 1,390 with a school on file
- Record last updated2025 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
591 family nurse practitioner records list a practice address in Portland
They are 591 of the 42,088 NPPES records with a practice address in Portland, and 2,384 family nurse practitioner records in Oregon.
All 2,384 in Oregon → Every provider in Portland → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Liana Corliss, N.P.Portland, OR 972131952376451
- Lyn Dobrunick, FNPPortland, OR 972131013909142
- Melissa Federspiel, FNPPortland, OR 972131881676641
- Dennis Grey, F.N.P.Portland, OR 972131851303291
- Roxanne Griswold, FNPPortland, OR 972131205828936
- Caryl Kenworth, M.S.N., F.N.P.Portland, OR 972131396757662
- Melissa Kilian, FNPPortland, OR 972131821054024
- Daniel Leone, NP-CPortland, OR 972131962559112
Common questions
What is Ariana E. Maileoi, FNP's NPI number?
Ariana E. Maileoi, FNP's National Provider Identifier (NPI) is 1891402269, issued on Nov 3, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ariana E. Maileoi, FNP located?
The NPPES record lists a practice address at 4224 NE Halsey St Ste 300, Portland, OR, 97213. Phone: (503) 235-5509. Providers update this record themselves, so call before visiting.
How can I verify Ariana E. Maileoi, FNP's license?
NPPES lists Oregon license number APRNNP10004723, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Ariana E. Maileoi, FNP prescribe under Medicare Part D?
In 2024, Ariana E. Maileoi, FNP had 379 Medicare Part D claims for 113 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.