ELISSA SY AG-ACNP, APRN-CNP
NPI 1003650888
Nurse Practitioner - Acute Care in Tulsa, OK
About Elissa Sy Ag-acnp, Aprn-cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELISSA SY AG-ACNP, APRN-CNP (NPI 1003650888) is an individual acute care provider in Tulsa, Oklahoma, licensed in Oklahoma (218715) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS, is affiliated with Hillcrest Medical Center, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Elissa Sy Ag-acnp, Aprn-cnp 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.
Medicare Billing Reassignment
Medicare enrollment records show Elissa Sy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tulsa, OK 74104
- Reassigned Medicare billing, Oklahoma enrollment
- 210 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hillcrest Medical Center
Acute Care Hospitals · Tulsa, OKHillcrest Hospital South
Acute Care Hospitals · Tulsa, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Elissa Sy's NPI number?
The NPI number for Elissa Sy is 1003650888. It was assigned to this individual provider in the NPPES registry on June 25, 2024.
Where is Elissa Sy located?
Elissa Sy practices at 1120 S Utica Ave, Tulsa, OK 74104. The listed phone number is (918) 579-1000.
What is Elissa Sy's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Elissa Sy enrolled in Medicare?
Yes. Elissa Sy 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.
Which organization bills Medicare for Elissa Sy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elissa Sy reassigns Medicare benefits to Tulsa Hospital Medicine Physicians Group, LLC (Tulsa, OK). 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 Elissa Sy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elissa Sy accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Elissa Sy 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 Elissa Sy affiliated with any hospitals?
According to CMS data, Elissa Sy is affiliated with Hillcrest Medical Center and Hillcrest Hospital South.
When was this NPI record last updated?
The NPPES record for Elissa Sy was last updated on June 25, 2024. 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.
# Elissa Sy, AG-ACNP, APRN-CNP · NPI 1003650888
Acute Care physician in Tulsa, Oklahoma. Individual provider, active in the CMS NPPES registry since June 25, 2024.
## Identity
- **NPI:** 1003650888 (Entity type: Individual)
- **Enumerated:** June 25, 2024
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 218715 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 1120 S UTICA AVE, Tulsa, OK 74104-4090
- **Phone:** (918) 579-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Tulsa Hospital Medicine Physicians Group, LLC (NPI 1144982711, Tulsa, OK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** June 25, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1003650888) · Data from the CMS NPPES public registry.