DR. SONYA J HWANG M.D.
NPI 1871531483
Pathology - Anatomic Pathology in Port Jefferson Station, NY
About Dr. Sonya J Hwang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SONYA J HWANG M.D. (NPI 1871531483) is an individual anatomic pathology provider in Port Jefferson Station, New York, licensed in New York (216814) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Stony Brook.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Sonya J Hwang M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Sonya Hwang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Port Jefferson Station, NY 11776
- Reassigned Medicare billing, New York enrollment
- 636 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11776 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT JEFFERSON STATION, NY 11776
PORT JEFFERSON STATION, NY 11776
PORT JEFFERSON STATION, NY 11776
PORT JEFFERSON STATION, NY 11776
PORT JEFFERSON STATION, NY 11776
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 Sonya Hwang's NPI number?
The NPI number for Sonya Hwang is 1871531483. It was assigned to this individual provider in the NPPES registry on June 4, 2006.
Where is Sonya Hwang located?
Sonya Hwang practices at 1500 Route 112 Ste 101, Port Jefferson Station, NY 11776. The listed phone number is (631) 751-3000.
What is Sonya Hwang's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.
Is Sonya Hwang enrolled in Medicare?
Yes. Sonya Hwang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Sonya Hwang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sonya Hwang reassigns Medicare benefits to North Shore Hematology Oncology Associates PC (Port Jefferson Station, 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 Sonya Hwang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sonya Hwang was last updated on November 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.