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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ABIGAIL HELEN SARKISSIAN APN
NPI 1598596546
Nurse Practitioner - Psychiatric/Mental Health in Belleville, IL

Active since August 12, 2024PECOS Enrolled
12 N 64TH ST, BELLEVILLE, IL 62223(618) 877-4420(618) 512-1920 Get Directions Write a Review

NPPES record last updated: November 6, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 6, 2026, Sep 18, 2026, Aug 12, 2024 (3 updates tracked since 2024).

About Abigail Helen Sarkissian Apn NPPES

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

ABIGAIL HELEN SARKISSIAN APN (NPI 1598596546) is an individual psychiatric/mental health provider in Belleville, Illinois, licensed in Illinois (209.030222) and active in the NPI registry since August 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1598596546
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameABIGAIL HELEN SARKISSIANCredential: APN
Location Address12 N 64TH STBelleville, IL 62223-3809
Mailing Address1003 Martin Luther King DrBloomington, IL 61701-1429 · (888) 924-3786
Phone(618) 877-4420
Fax(618) 512-1920
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateAugust 12, 2024
Last NPPES UpdateNovember 6, 20263 updates tracked since enumeration
NPPES CertifiedNovember 6, 2026
✔ NPI 1598596546 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 IL · 209.030222
12 N 64TH ST, Belleville, IL 62223
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Abigail Helen Sarkissian Apn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2961937370
PECOS Enrollment IDI20241121004478
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 Abigail Sarkissian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chestnut Health Systems Inc.
21 mi
Mental Health (Including Community Mental Health Center)
337 E FERGUSON AVE
Wood River, IL 62095
  • Reassigned Medicare billing, Illinois enrollment
  • 90 clinicians in this Medicare group
NPI 1235941311 (618) 877-4420

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 62223 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
$88.44 typical visit price
range $56.28 – $173.35
Typical copayment $22.11 (range $14.07 – $43.33)
Most-billed visit code 99203
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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.

ARLINDA LOUISE JONES-ABEKASIS LCPC
Counselor
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 397-0900
KELSEY STOTT
Social Worker (Clinical)
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (888) 924-3786
COURTNEY ANNE CANNES LCPC
Counselor (Professional)
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 877-9530
MRS. MELANIE ANN WYLIE RN MSN CNS APN
Registered Nurse (Psychiatric/Mental Health, Adult)
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 397-7145
SARAH MICHELLE HARDING LSW
Social Worker
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 877-4420
MR. CHARLES JOSEPH FRANKE III L.C.S.W.
Social Worker (Clinical)
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 397-0900
RACHEL LEANN HODGE MSW
Social Worker (Clinical)
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 877-4420
REBECCA LYNN CHOATE LPC
Counselor (Mental Health)
12 N 64TH ST
BELLEVILLE, IL 62223
St. Clair County (618) 877-4420

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 Abigail Sarkissian's NPI number?

The NPI number for Abigail Sarkissian is 1598596546. It was assigned to this individual provider in the NPPES registry on August 12, 2024.

Where is Abigail Sarkissian located?

Abigail Sarkissian practices at 12 N 64th St, Belleville, IL 62223. The listed phone number is (618) 877-4420.

What is Abigail Sarkissian's specialty?

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

Is Abigail Sarkissian enrolled in Medicare?

Yes. Abigail Sarkissian is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Abigail Sarkissian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Abigail Sarkissian reassigns Medicare benefits to Chestnut Health Systems Inc. (Wood River, IL). 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 Abigail Sarkissian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Abigail Sarkissian accept?

Health plans from Ambetter Health, Oscar Health and UnitedHealthcare list Abigail Sarkissian 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 Abigail Sarkissian was last updated on November 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.