Ariana Maileoi, FNP
NPI 1891402269 · Family Nurse Practitioner · Portland, OR
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ariana Maileoi, FNP is a Family Nurse Practitioner provider in Portland, OR (NPI 1891402269).
Provider details
- NPI number
- 1891402269
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP61368513 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
94 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Dialysis Services, 1 Physician Visit Per Month (20 Years Or Older)90962 | 38 | $170 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 23 | $249 |
| Transitional Care Management Services for Problem of High Complexity99496 | 21 | $245 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 12 | $301 |
Typical Medicare-allowed amounts for these services range $170–$301 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 84 | 35 |
| Calcium Acetate | 46 | 20 |
| Sucroferric Oxyhydroxidebrand: Velphoro | 38 | 13 |
| Hydralazine Hcl | 37 | — |
| Lanthanum Carbonate | 30 | — |
| Patiromer Calcium Sorbitexbrand: Veltassa | 13 | — |
| Amlodipine Besylate | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$119 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-11-03
- Last updated
- 2025-09-25
- Certified
- 2025-09-25
Frequently asked questions
- What is Ariana Maileoi's NPI number?
- Ariana Maileoi's National Provider Identifier (NPI) is 1891402269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ariana Maileoi's specialty?
- Ariana Maileoi is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ariana Maileoi located?
- Ariana Maileoi's practice location on file with NPPES is 4224 Ne Halsey St Ste 300, Portland, OR 97213-1568.
- What is Ariana Maileoi's phone number?
- The practice phone number listed in the NPPES registry for Ariana Maileoi is (503) 235-5509.
- Does Ariana Maileoi accept Medicare?
- Ariana Maileoi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ariana Maileoi's NPI active?
- Yes — Ariana Maileoi's NPI (1891402269) is active in the NPPES registry as of the last update on 2025-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.