JULIA ARENA
NPI 1649731357
Surgery - Surgical Critical Care in Hawthorne, NY
About Julia Arena NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JULIA ARENA (NPI 1649731357) is an individual surgical critical care provider in Hawthorne, New York, licensed in New York (333007) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of New York Medical College (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
Julia Arena 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 Julia Arena reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYGarnet Health Medical Center
Acute Care Hospitals · Middletown, NYGood Samaritan Hospital Of Suffern
Acute Care Hospitals · Suffern, NYWestchester Medical Center
Acute Care Hospitals · Valhalla, NYOther Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HAWTHORNE, NY 10532
HAWTHORNE, NY 10532
HAWTHORNE, NY 10532
HAWTHORNE, NY 10532
HAWTHORNE, NY 10532
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 Julia Arena's NPI number?
The NPI number for Julia Arena is 1649731357. It was assigned to this individual provider in the NPPES registry on March 26, 2019.
Where is Julia Arena located?
Julia Arena practices at 19 Bradhurst Ave Ste 3100N, Hawthorne, NY 10532. The listed phone number is (914) 592-2400.
What is Julia Arena's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Julia Arena enrolled in Medicare?
Yes. Julia Arena 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 Julia Arena's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Julia Arena reassigns Medicare benefits to Westchester Medical Center Advanced Physician Services PC (Valhalla, 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 Julia Arena's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Julia Arena affiliated with any hospitals?
According to CMS data, Julia Arena is affiliated with New York-Presbyterian Hospital, Garnet Health Medical Center, Good Samaritan Hospital Of Suffern and Westchester Medical Center.
When was this NPI record last updated?
The NPPES record for Julia Arena was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Julia Arena · NPI 1649731357
Surgical Critical Care physician in Hawthorne, New York. Individual provider, active in the CMS NPPES registry since March 26, 2019.
## Identity
- **NPI:** 1649731357 (Entity type: Individual)
- **Enumerated:** March 26, 2019
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** 333007 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 19 BRADHURST AVE STE 3100N, Hawthorne, NY 10532-2140
- **Phone:** (914) 592-2400
## 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:** Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2019
## Record status
- **NPPES last updated:** September 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1649731357) · Data from the CMS NPPES public registry.