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TIMOTHY PATRICK AIELLO NPP
NPI 1851815716
Nurse Practitioner - Psychiatric/Mental Health in Smithtown, NY

Active since August 01, 2017PECOS Enrolled
550 SMITHTOWN BYP STE 107, SMITHTOWN, NY 11787(631) 944-2435(805) 210-8998 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 10, 2026, Aug 1, 2017 (2 updates tracked since 2017).

About Timothy Patrick Aiello Npp NPPES

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

TIMOTHY PATRICK AIELLO NPP (NPI 1851815716) is an individual psychiatric/mental health provider in Smithtown, New York, licensed in New York (402205) and active in the NPI registry since August 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851815716
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameTIMOTHY PATRICK AIELLOCredential: NPP
Location Address550 SMITHTOWN BYP STE 107Smithtown, NY 11787-5013
Mailing Address550 Smithtown Byp Ste 107Smithtown, NY 11787-5013 · (631) 944-2435 · Fax (805) 210-8998
Phone(631) 944-2435
Fax(805) 210-8998
Sole ProprietorYes
Enumeration DateAugust 1, 2017
Last NPPES UpdateAugust 10, 20262 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1851815716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NY · 402205
550 SMITHTOWN BYP STE 107, Smithtown, NY 11787
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Timothy Patrick Aiello Npp 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 Timothy Aiello reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Timothy P Aiello Nurse Practitioner In Psychiatry PLLC
Same address
Psychiatric/Mental Health
550 SMITHTOWN BYP STE 107
Smithtown, NY 11787
  • Reassigned Medicare billing, New York enrollment
NPI 1831822063 (631) 944-2435

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 11787 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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

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

TIMOTHY P AIELLO NURSE PRACTITIONER IN PSYCHIATRY PLLC
Nurse Practitioner (Psychiatric/Mental Health)
550 SMITHTOWN BYP STE 107
SMITHTOWN, NY 11787
Suffolk County (631) 944-2435

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 Timothy Aiello's NPI number?

The NPI number for Timothy Aiello is 1851815716. It was assigned to this individual provider in the NPPES registry on August 1, 2017.

Where is Timothy Aiello located?

Timothy Aiello practices at 550 Smithtown Byp Ste 107, Smithtown, NY 11787. The listed phone number is (631) 944-2435.

What is Timothy Aiello's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Timothy Aiello enrolled in Medicare?

Yes. Timothy Aiello is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Timothy Aiello's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Aiello reassigns Medicare benefits to Timothy P Aiello Nurse Practitioner In Psychiatry PLLC (Smithtown, NY). 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 Timothy Aiello's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Timothy Aiello accept?

Health plans from Oscar Health list Timothy Aiello 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 Timothy Aiello was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.