DR. PETER HSU M.D.
NPI 1003173592
Pediatrics - Pediatric Hematology-Oncology in Boston, MA
About Dr. Peter Hsu M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER HSU M.D. (NPI 1003173592) is an individual pediatric hematology-oncology provider in Boston, Massachusetts, licensed in Massachusetts (285014) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Hospital - Needham, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Other Identifiers 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
Dr. Peter Hsu M.d. 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
12Medicare enrollment records show Peter Hsu reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1497151773 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 clinicians in this Medicare group
Melrose, MA 02176
- Reassigned Medicare billing, Massachusetts enrollment
- 176 clinicians in this Medicare group
Framingham, MA 01702
- Reassigned Medicare billing, Massachusetts enrollment
- 156 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 305 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 258 clinicians in this Medicare group
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 678 clinicians in this Medicare group
Oak Ridge, TN 37830
- Reassigned Medicare billing, Tennessee enrollment
- 1,085 clinicians in this Medicare group
Shelbyville, TN 37160
- Reassigned Medicare billing, Tennessee enrollment
- 498 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 5
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beth Israel Deaconess Hospital - Needham
Acute Care Hospitals · Needham, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MABeth Israel Deaconess Hospital - Milton
Acute Care Hospitals · Milton, MAMetrowest Medical Center
Acute Care Hospitals · Framingham, MAMedicare 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Peter Hsu's NPI number?
The NPI number for Peter Hsu is 1003173592. It was assigned to this individual provider in the NPPES registry on April 20, 2012.
Where is Peter Hsu located?
Peter Hsu practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Peter Hsu's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Peter Hsu enrolled in Medicare?
Yes. Peter Hsu 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 Peter Hsu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Hsu reassigns Medicare benefits to 12 organizations: Children's Hospital Pediatric Associates, Inc (Boston, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Massachusetts Acute Care Specialists PC (Melrose, MA), Hospitalist Physicians Of Massachusetts PC (Framingham, MA) and 7 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 Peter Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Hsu accept?
Health plans from Oscar Insurance Company and Taro Health list Peter Hsu 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 Peter Hsu affiliated with any hospitals?
According to CMS data, Peter Hsu is affiliated with Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center, Beth Israel Deaconess Hospital - Milton and Metrowest Medical Center.
When was this NPI record last updated?
The NPPES record for Peter Hsu was last updated on March 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Peter Hsu, M.D. · NPI 1003173592
Pediatric Hematology-Oncology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 20, 2012.
## Identity
- **NPI:** 1003173592 (Entity type: Individual)
- **Enumerated:** April 20, 2012
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** 285014 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## 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:** 12 organizations under Medicare reassignment (form CMS-855R): Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Massachusetts Acute Care Specialists PC (NPI 1306134812, Melrose, MA); Hospitalist Physicians Of Massachusetts PC (NPI 1376145680, Framingham, MA); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northeastern Ohio University College Of Medicine, class of 2012
## Record status
- **NPPES last updated:** March 1, 2021
- **Other identifiers:** Medicaid 0126184 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1003173592) · Data from the CMS NPPES public registry.