DR. SONIA YU MD
NPI 1225665664
Internal Medicine - Hematology & Oncology in Keene, NH
About Dr. Sonia Yu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SONIA YU MD (NPI 1225665664) is an individual hematology & oncology provider in Keene, New Hampshire, licensed in New Hampshire (39453) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Dr. Sonia Yu 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
3Medicare enrollment records show Sonia Yu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Keene, NH 03431
- Reassigned Medicare billing, New Hampshire enrollment
- 450 clinicians in this Medicare group
Keene, NH 03431
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHCheshire Medical Center
Acute Care Hospitals · Keene, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03431 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 Sonia Yu's NPI number?
The NPI number for Sonia Yu is 1225665664. It was assigned to this individual provider in the NPPES registry on March 25, 2020.
Where is Sonia Yu located?
Sonia Yu practices at 590 Court St, Keene, NH 03431. The listed phone number is (603) 354-5400.
What is Sonia Yu's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Sonia Yu enrolled in Medicare?
Yes. Sonia Yu 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 Sonia Yu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sonia Yu reassigns Medicare benefits to 3 organizations: Cheshire Medical Center (Keene, NH), Dartmouth-Hitchcock Clinic (Keene, NH) and Mary Hitchcock Memorial Hospital (Lebanon, NH). 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 Sonia Yu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sonia Yu accept?
Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Sonia Yu 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 Sonia Yu affiliated with any hospitals?
According to CMS data, Sonia Yu is affiliated with Mary Hitchcock Memorial Hospital and Cheshire Medical Center.
When was this NPI record last updated?
The NPPES record for Sonia Yu was last updated on June 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Sonia Yu, MD · NPI 1225665664
Hematology & Oncology physician in Keene, New Hampshire. Individual provider, active in the CMS NPPES registry since March 25, 2020.
## Identity
- **NPI:** 1225665664 (Entity type: Individual)
- **Enumerated:** March 25, 2020
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 39453 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 590 COURT ST, Keene, NH 03431-1719
- **Phone:** (603) 354-5400
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Cheshire Medical Center (NPI 1306349444, Keene, NH); Dartmouth-Hitchcock Clinic (NPI 1174176861, Keene, NH); Mary Hitchcock Memorial Hospital (NPI 1023092053, Lebanon, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1225665664) · Data from the CMS NPPES public registry.