KELLY ANN ANTIMISIARIS
NPI 1265213797
Nurse Practitioner - Psychiatric/Mental Health in Massapequa, NY

Active since October 10, 2023PECOS EnrolledAccepts Medicare Assignment
5550 MERRICK RD, MASSAPEQUA, NY 11758(631) 773-1096 Get Directions Write a Review

NPPES record last updated: October 10, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Kelly Ann Antimisiaris NPPES

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

KELLY ANN ANTIMISIARIS (NPI 1265213797) is an individual psychiatric/mental health provider in Massapequa, New York, licensed in New York (405343) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1265213797
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameKELLY ANN ANTIMISIARIS
Location Address5550 MERRICK RDMassapequa, NY 11758-6238
Mailing Address5550 Merrick RdMassapequa, NY 11758-6238
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateOctober 10, 2023
NPPES CertifiedOctober 10, 2023
NPI 1265213797 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 · 405343
5550 MERRICK RD, Massapequa, NY 11758

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Kelly Ann Antimisiaris is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234577339
PECOS Enrollment IDI20240409002840
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ns/Lij Hs Southside Hospital

Acute Care Hospitals · Bay Shore, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330043
Location301 East Main StreetBay Shore, NY 11706 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11758 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 13

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

Counselor (Mental Health)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Clinic/Center (Primary Care)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Nurse Practitioner (Psychiatric/Mental Health)
5550 MERRICK RD
MASSAPEQUA, NY 11758
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Physician Assistant
5550 MERRICK RD
MASSAPEQUA, NY 11758
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758
Social Worker
5550 MERRICK RD
MASSAPEQUA, NY 11758

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 Kelly Antimisiaris's NPI number?

The NPI number for Kelly Antimisiaris is 1265213797. It was assigned to this individual provider in the NPPES registry on October 10, 2023.

Where is Kelly Antimisiaris located?

Kelly Antimisiaris practices at 5550 Merrick Rd, Massapequa, NY 11758. The listed phone number is (631) 773-1096.

What is Kelly Antimisiaris's specialty?

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

Is Kelly Antimisiaris enrolled in Medicare?

Yes. Kelly Antimisiaris is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Kelly Antimisiaris accept?

Health plans from Providence Health Plan list Kelly Antimisiaris 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.

Is Kelly Antimisiaris affiliated with any hospitals?

According to CMS data, Kelly Antimisiaris is affiliated with Ns/Lij Hs Southside Hospital.

When was this NPI record last updated?

The NPPES record for Kelly Antimisiaris was last updated on October 10, 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.