AMY CHAU NP
NPI 1235840356
Nurse Practitioner - Family in Leominster, MA
About Amy Chau Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY CHAU NP (NPI 1235840356) is an individual family provider in Leominster, Massachusetts, licensed in Massachusetts (RN2346287) and active in the NPI registry since December 2022. She is enrolled in Medicare PECOS and is a graduate of Other (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
Amy Chau Np 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 Amy Chau reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worcester, MA 01606
- Reassigned Medicare billing, Massachusetts enrollment
- 718 clinicians in this Medicare group
Bedford, MA 01730
- Reassigned Medicare billing, Massachusetts enrollment
- 38 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01453 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.
LEOMINSTER, MA 01453
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 Amy Chau's NPI number?
The NPI number for Amy Chau is 1235840356. It was assigned to this individual provider in the NPPES registry on December 9, 2022.
Where is Amy Chau located?
Amy Chau practices at 225 New Lancaster Rd, Leominster, MA 01453. The listed phone number is (978) 466-3208.
What is Amy Chau's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Amy Chau enrolled in Medicare?
Yes. Amy Chau 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 Amy Chau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Chau reassigns Medicare benefits to 2 organizations: Reliant Medical Group, Inc (Worcester, MA) and Patriot Urgent Care Professionals, PC (Bedford, 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 Amy Chau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Amy Chau was last updated on December 9, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Amy Chau, NP · NPI 1235840356
Family physician in Leominster, Massachusetts. Individual provider, active in the CMS NPPES registry since December 9, 2022.
## Identity
- **NPI:** 1235840356 (Entity type: Individual)
- **Enumerated:** December 9, 2022
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** RN2346287 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 225 NEW LANCASTER RD, Leominster, MA 01453-4958
- **Phone:** (978) 466-3208 · **Fax:** (978) 840-1680
## 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): Reliant Medical Group, Inc (NPI 1720017528, Worcester, MA); Patriot Urgent Care Professionals, PC (NPI 1669950853, Bedford, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** December 9, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1235840356) · Data from the CMS NPPES public registry.