NPPES file of Aug 9, 2026

Amy Chau, NP

Family Nurse Practitioner · Leominster, MA

Amy Chau, NP is a family nurse practitioner with a practice address in Leominster, Massachusetts, and NPI 1235840356, issued on Dec 9, 2022. Check the license (Massachusetts RN2346287, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235840356
Name
Amy Chau
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN2346287 MA
Self-reported in NPPES; status is on the state search
Practice location
225 New Lancaster RD, Leominster, MA 01453
Phone
(978) 466-3208
Enumerated
Dec 9, 2022
Record last updated
Dec 9, 2022
Fax
(978) 840-1680
Medicare enrollment
Enrolled (PECOS I20230109002604); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 225 New Lancaster RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrew Ahearn, NPRegistered Nurse1598309932
  2. Maria Alatalo, PTPhysical Therapist1245219112
  3. Kathryn Allen, LICSWSocial Worker1427505916
  4. Shawna Baker, DNPFamily Nurse Practitioner1912627399
  5. Pamela Demar, FNP-BCFamily Nurse Practitioner1124358916
  6. Joseph Difranza, M.D.Family Medicine Physician1093798902

Verify Amy Chau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2346287
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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89% more Medicare Part D claims than the average family nurse practitioner in 2024

2,472 Medicare Part D claims for 497 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 59 claims were for opioids.

  1. Amy Chau2,472
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium228 claims
  2. Levothyroxine Sodium95 claims
  3. Gabapentin93 claims
  4. Lisinopril85 claims
  5. Losartan Potassium78 claims
  6. Omeprazole71 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. Patriot Urgent Care Professionals PCBedford, MA
  2. Reliant Medical Group IncLeominster, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

46 family nurse practitioner records list a practice address in Leominster

They are 46 of the 1,151 NPPES records with a practice address in Leominster, and 4,724 family nurse practitioner records in Massachusetts.

Other family nurse practitioner records in Massachusetts

  1. Christina Abate, N.P.Boston, MA1235414970
  2. Katelynne Abbott, NPDanvers, MA1932355880
  3. Georgette Abboud, FNP-CHanscom Afb, MA1538593686
  4. Irfana Abdulhameed, FNPNorthborough, MA1417661786
  5. Christina Abouleish, NPNorwell, MA1700515772
  6. Christine Abraham, NPSouthborough, MA1215774658
  7. Catherine Abrams, FNP-CNorth Dartmouth, MA1528790599
  8. Wendy Abrams, FNPBoston, MA1962557801
  9. Michelle Abreu, FNP-BCArlington, MA1346138914
  10. Karolyn Abreu Blanco, FNP-BCLawrence, MA1043007644

Common questions

What is Amy Chau, NP's NPI number?

Amy Chau, NP's National Provider Identifier (NPI) is 1235840356, issued on Dec 9, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Amy Chau, NP located?

The NPPES record lists a practice address at 225 New Lancaster RD, Leominster, MA, 01453. Phone: (978) 466-3208. Providers update this record themselves, so call before visiting.

How can I verify Amy Chau, NP's license?

NPPES lists Massachusetts license number RN2346287, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Amy Chau, NP prescribe under Medicare Part D?

In 2024, Amy Chau, NP had 2,472 Medicare Part D claims for 497 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.