Hillary Du
NPI 1720631492 · Physician Assistant · Boston, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hillary Du is a Physician Assistant provider in Boston, MA (NPI 1720631492).
Provider details
- NPI number
- 1720631492
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
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 tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
683 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 334 | $110 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 181 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 99 | $78 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 69 | $48 |
Typical Medicare-allowed amounts for these services range $48–$110 (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 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 305 | 72 |
| Clonazepam | 295 | 77 |
| Alprazolam | 241 | 60 |
| Lamotrigine | 233 | 44 |
| Gabapentin | 174 | 49 |
| Quetiapine Fumarate | 174 | 40 |
| Lorazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,276 across 84 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-07-22
- Last updated
- 2021-02-11
- Certified
- 2021-02-11
Frequently asked questions
- What is Hillary Du's NPI number?
- Hillary Du's National Provider Identifier (NPI) is 1720631492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hillary Du's specialty?
- Hillary Du is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hillary Du located?
- Hillary Du's practice location on file with NPPES is 179 Longwood Ave, Boston, MA 02115-5804.
- What is Hillary Du's phone number?
- The practice phone number listed in the NPPES registry for Hillary Du is (617) 732-2850.
- Does Hillary Du accept Medicare?
- Hillary Du is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hillary Du's NPI active?
- Yes — Hillary Du's NPI (1720631492) is active in the NPPES registry as of the last update on 2021-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.