Amy Chau, NP
NPI 1235840356 · Family Nurse Practitioner · Leominster, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amy Chau, NP is a Family Nurse Practitioner provider in Leominster, MA (NPI 1235840356).
Provider details
- NPI number
- 1235840356
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN2346287 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
241 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 100 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 96 | $108 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 32 | $112 |
| Administration of Influenza Virus VaccineG0008 | 13 | $33 |
Typical Medicare-allowed amounts for these services range $33–$112 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 228 | 101 |
| Levothyroxine Sodium | 95 | 36 |
| Gabapentin | 93 | 32 |
| Lisinopril | 85 | 36 |
| Losartan Potassium | 78 | 36 |
| Omeprazole | 71 | 31 |
| Atenolol | 52 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-12-09
- Last updated
- 2022-12-09
- Certified
- 2022-12-09
Frequently asked questions
- What is Amy Chau's NPI number?
- Amy Chau's National Provider Identifier (NPI) is 1235840356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amy Chau's specialty?
- Amy Chau is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amy Chau located?
- Amy Chau's practice location on file with NPPES is 225 New Lancaster Rd, Leominster, MA 01453-4958.
- What is Amy Chau's phone number?
- The practice phone number listed in the NPPES registry for Amy Chau is (978) 466-3208.
- Does Amy Chau accept Medicare?
- Amy Chau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amy Chau's NPI active?
- Yes — Amy Chau's NPI (1235840356) is active in the NPPES registry as of the last update on 2022-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.