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ADAM ONEILL PA-C
NPI 1689224107
Physician Assistant in Fairfax, VA

Active since September 17, 2019Opted out of Medicare · through Jul 12, 2028
8324 PROFESSIONAL HILL DR, FAIRFAX, VA 22031(703) 261-4177 Get Directions Write a Review

NPPES record last updated: November 25, 2024. Verified against the NPPES registry weekly; last sync: September 27, 2026.

About Adam Oneill Pa-c NPPES

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

ADAM ONEILL PA-C (NPI 1689224107) is an individual physician assistant in Fairfax, Virginia, licensed in Pennsylvania (MA061052) and active in the NPI registry since September 2019. He has opted out of Medicare through July 12, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1689224107
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameADAM ONEILLCredential: PA-C
Location Address8324 PROFESSIONAL HILL DRFairfax, VA 22031-4611
Mailing Address8324 Professional Hill DrFairfax, VA 22031-4611 · (703) 261-4177
Phone(703) 261-4177
Sole ProprietorYes
Enumeration DateSeptember 17, 2019
Last NPPES UpdateNovember 25, 2024
NPPES CertifiedNovember 25, 2024
✔ NPI 1689224107 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in PA · MA061052
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
8324 PROFESSIONAL HILL DR, Fairfax, VA 22031
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Adam Oneill Pa-c has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 12, 2022 through July 12, 2028.

Opt-Out Effective DateJuly 12, 2022
Opt-Out In Effect ThroughJuly 12, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22031 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
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 2

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

DR. JOANNE HERRMAN MD
Obstetrics & Gynecology (Gynecology)
8324 PROFESSIONAL HILL DR
FAIRFAX, VA 22031
Fairfax County (703) 573-5600
ADAM O'NEILL & ASSOCIATES LLC
Psychiatry & Neurology (Psychiatry)
8324 PROFESSIONAL HILL DR
FAIRFAX, VA 22031
Fairfax County (703) 261-4177

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 Adam Oneill's NPI number?

The NPI number for Adam Oneill is 1689224107. It was assigned to this individual provider in the NPPES registry on September 17, 2019.

Where is Adam Oneill located?

Adam Oneill practices at 8324 Professional Hill Dr, Fairfax, VA 22031. The listed phone number is (703) 261-4177.

What is Adam Oneill's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Adam Oneill enrolled in Medicare?

No. Adam Oneill has opted out of Medicare through July 12, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Adam Oneill was last updated on November 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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.