JI-SUK KRISTEN YOO D.O.
NPI 1275890964
Neurological Surgery in Littleton, NH
About Ji-suk Kristen Yoo D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JI-SUK KRISTEN YOO D.O. (NPI 1275890964) is an individual neurological surgery provider in Littleton, New Hampshire, licensed in New Hampshire (24480) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and maintains a secondary practice location in Newark.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Ji-suk Kristen Yoo D.o. 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
4Medicare enrollment records show Ji-suk Yoo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Littleton, NH 03561
- Reassigned Medicare billing, New Hampshire enrollment
- Also billed through NPI 1144223702 (New Hampshire)
- 219 clinicians in this Medicare group
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 clinicians in this Medicare group
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
Newark, NJ 07103
- Reassigned Medicare billing, New Jersey enrollment
- 13 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHUpper Connecticut Valley Hospital
Critical Access Hospitals · Colebrook, NHLittleton Regional Healthcare
Critical Access Hospitals · Littleton, NHWeeks Medical Center
Critical Access Hospitals · Lancaster, NHNorth Country Hospital And Health Center
Critical Access Hospitals · Newport, VTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03561 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.
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 Ji-suk Yoo's NPI number?
The NPI number for Ji-suk Yoo is 1275890964. It was assigned to this individual provider in the NPPES registry on April 18, 2012.
Where is Ji-suk Yoo located?
Ji-suk Yoo practices at 580 Saint Johnsbury Rd Ste B, Littleton, NH 03561. The listed phone number is (603) 308-1472.
What is Ji-suk Yoo's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Ji-suk Yoo enrolled in Medicare?
Yes. Ji-suk Yoo 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 Ji-suk Yoo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ji-suk Yoo reassigns Medicare benefits to 4 organizations: Littleton Hospital Association (Littleton, NH), Mary Hitchcock Memorial Hospital (Lebanon, NH), Dartmouth-Hitchcock Clinic (Lebanon, NH) and University Physician Associates Of New Jersey Inc (Newark, NJ). 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 Ji-suk Yoo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ji-suk Yoo accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Ji-suk Yoo 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 Ji-suk Yoo affiliated with any hospitals?
According to CMS data, Ji-suk Yoo is affiliated with Mary Hitchcock Memorial Hospital, Upper Connecticut Valley Hospital, Littleton Regional Healthcare, Weeks Medical Center and North Country Hospital And Health Center.
When was this NPI record last updated?
The NPPES record for Ji-suk Yoo was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.