1. Home
  2. Directory
  3. Oregon
  4. Portland
  5. Pediatrics
  6. NPI Profile

ALISON BRIANNA O'NEILL MD
NPI 1326409236
Pediatrics - Pediatric Endocrinology in Portland, OR

Active since March 19, 2016PECOS Enrolled
3181 SW SAM JACKSON PARK RD, OHSU, PORTLAND, OR 97239(503) 494-8211 Get Directions Write a Review

NPPES record last updated: December 13, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 13, 2023, Aug 2, 2022, May 10, 2019 and 1 more (4 updates tracked since 2016).

About Alison Brianna O'neill Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALISON BRIANNA O'NEILL MD (NPI 1326409236) is an individual pediatric endocrinology provider in Portland, Oregon, licensed in Oregon (MD211213) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Philadelphia.

NPPES Registry Identity

NPI1326409236
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameALISON BRIANNA O'NEILLCredential: MD
Location Address3181 SW SAM JACKSON PARK RD, OHSUPortland, OR 97239-3011
Mailing Address3181 Sw Sam Jackson Park RdPortland, OR 97239-3011 · (503) 418-5710 · Fax (503) 346-0645
Phone(503) 494-8211
Sole ProprietorNo
Enumeration DateMarch 19, 2016
Last NPPES UpdateDecember 13, 20234 updates tracked since enumeration
NPPES CertifiedDecember 13, 2023
✔ NPI 1326409236 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in OR · MD211213
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatricsTaxonomy 208000000X · License PG188463 (OR), MD211213 (OR)
3181 SW SAM JACKSON PARK RD, Portland, OR 97239
Open in Google Maps ↗

Secondary Practice Location 1

Location 13401 Civic Center BlvdPhiladelphia, PA 19104-4319 · Phone (267) 426-6904

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alison Brianna O'neill Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Alison O'neill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Professional Services
Same address
General Practice
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
  • Reassigned Medicare billing, Oregon enrollment
  • 2,212 clinicians in this Medicare group
NPI 1376709535 (503) 494-8311

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DONALD RICHARD SULLIVAN MD
Internal Medicine (Pulmonary Disease)
3181 SW SAM JACKSON PARK RD, UHN67
PORTLAND, OR 97239
Multnomah County (503) 494-6949
MRS. ANJALEE NIX ROWE NP
Nurse Practitioner (Acute Care)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-3988
REEM HASAN MD
Internal Medicine
3181 SW SAM JACKSON PARK RD, PPV 350
PORTLAND, OR 97239
Multnomah County (503) 494-8562
DR. AMANDA D BALL PSY.D
Psychologist (Clinical)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
SUNSHINE WELSCH LMT
Massage Therapist
3181 SW SAM JACKSON PARK RD, 7D19
PORTLAND, OR 97239
Multnomah County (503) 494-8349
DR. ROBERT GENE MEALER M.D., PH.D.
Psychiatry & Neurology (Psychiatry)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
GREGORY HALL MD
Radiology (Diagnostic Radiology)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 418-0990
DR. BURHAN AHMED MIAN MD
Student in an Organized Health Care Education/Training Program
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-8311

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alison O'neill's NPI number?

The NPI number for Alison O'neill is 1326409236. It was assigned to this individual provider in the NPPES registry on March 19, 2016.

Where is Alison O'neill located?

Alison O'neill practices at 3181 SW Sam Jackson Park Rd Ohsu, Portland, OR 97239. The listed phone number is (503) 494-8211.

What is Alison O'neill's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Alison O'neill enrolled in Medicare?

Yes. Alison O'neill is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alison O'neill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alison O'neill reassigns Medicare benefits to University Professional Services (Portland, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alison O'neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alison O'neill accept?

Health plans from PacificSource Health Plans and Providence Health Plan list Alison O'neill as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alison O'neill was last updated on December 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.