SEUNGHWAN BYUN MD
NPI 1013399294
Hospitalist in Rio Rancho, NM
About Seunghwan Byun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEUNGHWAN BYUN MD (NPI 1013399294) is an individual hospitalist provider in Rio Rancho, New Mexico, licensed in New York (319091) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Nyack Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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
Seunghwan Byun Md 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 Reassignments
8Medicare enrollment records show Seunghwan Byun reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Utica, NY 13502
- Reassigned Medicare billing, New York enrollment
- 304 clinicians in this Medicare group
Liberty, NY 12754
- Reassigned Medicare billing, New York enrollment
- 32 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
Kingston, NY 12401
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Nuvance Health Medical Practice PC
- 638 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 479 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
East Patchogue, NY 11772
- Reassigned Medicare billing, New York enrollment
- 640 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 7
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.
Nyack Hospital
Acute Care Hospitals · Nyack, NYWhite Plains Hospital Center
Acute Care Hospitals · White Plains, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 87124 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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
RIO RANCHO, NM 87124
RIO RANCHO, NM 87124
RIO RANCHO, NM 87124
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 Seunghwan Byun's NPI number?
The NPI number for Seunghwan Byun is 1013399294. It was assigned to this individual provider in the NPPES registry on June 23, 2015.
Where is Seunghwan Byun located?
Seunghwan Byun practices at 2400 Unser Blvd SE, Rio Rancho, NM 87124. The listed phone number is (505) 253-7878.
What is Seunghwan Byun's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Seunghwan Byun enrolled in Medicare?
Yes. Seunghwan Byun 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 organizations bill Medicare for Seunghwan Byun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Seunghwan Byun reassigns Medicare benefits to 8 organizations: New York Medical Physician Associates PC (Utica, NY), Empire Wound Physician Services, PLLC (Liberty, NY), Montefiore Medical Center (New York, NY), Health Quest Medical Practice, PC (Kingston, NY), Westchester Medical Center Advanced Physician Services PC (Valhalla, NY) and 3 more organizations, listed in the Medicare section above. Each 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 Seunghwan Byun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Seunghwan Byun affiliated with any hospitals?
According to CMS data, Seunghwan Byun is affiliated with Nyack Hospital and White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Seunghwan Byun was last updated on November 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Seunghwan Byun, MD · NPI 1013399294
Hospitalist physician in Rio Rancho, New Mexico. Individual provider, active in the CMS NPPES registry since June 23, 2015.
## Identity
- **NPI:** 1013399294 (Entity type: Individual)
- **Enumerated:** June 23, 2015
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 319091 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2400 UNSER BLVD SE, Rio Rancho, NM 87124
- **Phone:** (505) 253-7878
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): New York Medical Physician Associates PC (NPI 1619722147, Utica, NY); Empire Wound Physician Services, PLLC (NPI 1093130742, Liberty, NY); Montefiore Medical Center (NPI 1760288278, New York, NY); Health Quest Medical Practice, PC (NPI 1558906610, Kingston, NY); Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** November 18, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1013399294) · Data from the CMS NPPES public registry.