MS. DIER HU MD
NPI 1851040448
Internal Medicine in Boston, MA
About Ms. Dier Hu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. DIER HU MD (NPI 1851040448) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (1023497) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Temple University School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses
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
Ms. Dier Hu 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
2Medicare enrollment records show Dier Hu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MAMassachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Dier Hu's NPI number?
The NPI number for Dier Hu is 1851040448. It was assigned to this individual provider in the NPPES registry on March 21, 2022.
Where is Dier Hu located?
Dier Hu practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.
What is Dier Hu's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Dier Hu enrolled in Medicare?
Yes. Dier Hu 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 Dier Hu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dier Hu reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 Dier Hu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Dier Hu affiliated with any hospitals?
According to CMS data, Dier Hu is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Massachusetts Eye And Ear Infirmary -, Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Dier Hu was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Ms. Dier Hu, MD · NPI 1851040448
Internal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 21, 2022.
## Identity
- **NPI:** 1851040448 (Entity type: Individual)
- **Enumerated:** March 21, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1023497 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2696
- **Phone:** (617) 726-2000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** August 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1851040448) · Data from the CMS NPPES public registry.