NPPES file of Aug 9, 2026

Shiu-Chung Au, MD

Dermatology Physician · Marlborough, MA

Shiu-Chung Au, MD is a dermatology physician with a practice address in Marlborough, Massachusetts, and NPI 1841424272, issued on May 13, 2009. Check the license (Massachusetts 240818, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841424272
Name
Shiu-Chung Au
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
240818 MA
Self-reported in NPPES; status is on the state search
Practice location
11 Apex Dr Ste 103A, Marlborough, MA 01752
Phone
(508) 485-7779
Enumerated
May 13, 2009
Record last updated
May 30, 2024
Medicare enrollment
Enrolled (PECOS I20160822002057); 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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Verify Shiu-Chung Au in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 240818
    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
Open the Massachusetts license search

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19% more Medicare Part D claims than the average dermatology physician in 2024

946 Medicare Part D claims for 312 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Shiu-Chung Au946
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide131 claims
  2. Betamethasone Dipropionate88 claims
  3. Hydrocortisone66 claims
  4. Ketoconazole53 claims
  5. Dupixent Pen47 claims
  6. Betamethasone Diprop Augmented41 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.

The MIPS final score for 2023 (Medicare payment program): 97 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $93,537.61

128 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shiu-Chung Au$93,538
  2. Specialty average$8,545

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Louis Kuchnir MD PCMarlborough, MA

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

Shiu-Chung Au among 627 dermatology physician records in Massachusetts

Shiu-Chung Au, MD is one of 627 dermatology physician records with a practice address in Massachusetts. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.

  • NPI issued2009 · 52% of these records are older, 44% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2009 · median 2008 among the 445 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 dermatology physician records list a practice address in Marlborough

They are 8 of the 3,071 NPPES records with a practice address in Marlborough, and 627 dermatology physician records in Massachusetts.

The 8 dermatology physician records with the nearest ZIP codes

  1. Jeffrey Bernhard, M.D.Marlborough, MA 017521720061302
  2. Kevin Donohue, M.D.Marlborough, MA 017521225087919
  3. Deborah Goddard, M.D.Marlborough, MA 017521255463733
  4. Byron Ho, M.D.Marlborough, MA 017521194115709
  5. Louis Kuchnir, M.D.Marlborough, MA 017521043269731
  6. Carl Schanbacher, M.D.Marlborough, MA 017521366407371
  7. Thanh-Nga Tran, MD, PHDMarlborough, MA 017521407977846
  8. Lee Albert, MDMilford, MA 017571619974102

Common questions

What is Shiu-Chung Au, MD's NPI number?

Shiu-Chung Au, MD's National Provider Identifier (NPI) is 1841424272, issued on May 13, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Shiu-Chung Au, MD located?

The NPPES record lists a practice address at 11 Apex Dr Ste 103A, Marlborough, MA, 01752. Phone: (508) 485-7779. Providers update this record themselves, so call before visiting.

How can I verify Shiu-Chung Au, MD's license?

NPPES lists Massachusetts license number 240818, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Shiu-Chung Au, MD prescribe under Medicare Part D?

In 2024, Shiu-Chung Au, MD had 946 Medicare Part D claims for 312 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Shiu-Chung Au, MD's MIPS final score?

The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.