Shiu-Chung Au, MD
NPI 1841424272 · Dermatology Physician · Marlborough, MA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shiu-Chung Au, MD is a Dermatology Physician provider in Marlborough, MA (NPI 1841424272).
Provider details
- NPI number
- 1841424272
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 240818 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,075 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 373 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 202 | $96 |
| Biopsy of Related Skin Growth, First Growth11102 | 115 | $94 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 112 | $53 |
| Destruction of Skin Growth, 1-14 Growths17110 | 70 | $121 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 131 | 72 |
| Betamethasone Dipropionate | 88 | 44 |
| Hydrocortisone | 66 | 27 |
| Ketoconazole | 53 | 28 |
| Dupilumabbrand: Dupixent Pen | 47 | — |
| Betamethasone/Propylene Glycbrand: Betamethasone Diprop Augmented | 41 | 24 |
| Doxycycline Hyclate | 34 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$93,538 across 128 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
- 2009-05-13
- Last updated
- 2024-05-30
- Certified
- 2024-05-30
Frequently asked questions
- What is Shiu-Chung Au's NPI number?
- Shiu-Chung Au's National Provider Identifier (NPI) is 1841424272, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shiu-Chung Au's specialty?
- Shiu-Chung Au is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Shiu-Chung Au located?
- Shiu-Chung Au's practice location on file with NPPES is 11 Apex Dr Ste 103a, Marlborough, MA 01752-1860.
- What is Shiu-Chung Au's phone number?
- The practice phone number listed in the NPPES registry for Shiu-Chung Au is (508) 485-7779.
- Does Shiu-Chung Au accept Medicare?
- Shiu-Chung Au is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shiu-Chung Au's NPI active?
- Yes — Shiu-Chung Au's NPI (1841424272) is active in the NPPES registry as of the last update on 2024-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.