SHIU-CHUNG AU MD
NPI 1841424272
Dermatology in Marlborough, MA

Q: What is Shiu-chung Au's NPI number?

The NPI number for Shiu-chung Au is 1841424272. It was assigned to this individual provider in the NPPES registry on May 13, 2009.

Q: What is Shiu-chung Au's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for Shiu-chung Au was last updated on May 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 13, 2009PECOS EnrolledAccepts Medicare Assignment

97.02/100

CMS Quality Rating

11 APEX DR STE 103A, MARLBOROUGH, MA 01752(508) 485-7779 Get Directions Write a Review

NPPES record last updated: May 30, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 1, 2016, Jan 15, 2016 (2 updates tracked since 2016).

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About Shiu-chung Au Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SHIU-CHUNG AU MD (NPI 1841424272) is an individual dermatology provider in Marlborough, Massachusetts, licensed in Massachusetts (000000000) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1841424272

Entity TypeIndividualMale

Primary Taxonomy207N00000X

Provider Legal NameSHIU-CHUNG AUCredential: MD

Location Address11 APEX DR STE 103AMarlborough, MA 01752-1860

Mailing Address11 Apex Dr Ste 103aMarlborough, MA 01752-1860 · (508) 485-7779

Phone(508) 485-7779

Sole ProprietorYes

Medical School CMSOtherGraduated 2009

Enumeration DateMay 13, 2009

Last NPPES UpdateMay 30, 20242 updates tracked since enumeration

NPPES CertifiedMay 30, 2024

✔ NPI 1841424272 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

License✔ Licensed in MA · 000000000

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 240818 (MA)

11 APEX DR STE 103A, Marlborough, MA 01752

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Shiu-chung Au Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4587962204

PECOS Enrollment IDI20160822002057

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Shiu-chung Au reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Louis Kuchnir MD PC

Same address

Dermatology

11 APEX DRIVE, STE 103A
Marlborough, MA 01752

Reassigned Medicare billing, Massachusetts enrollment
21 clinicians in this Medicare group

NPI 1871709634 (508) 485-7779

Leominster Dermatology LLP

17 mi

Dermatology

100 HOSPITAL RD STE 2D
Leominster, MA 01453

Reassigned Medicare billing, Massachusetts enrollment
11 clinicians in this Medicare group

NPI 1710342878 (978) 534-0582

Pratt Med/Surg Dermatology Associates Inc

27 mi

Dermatology

800 WASHINGTON ST, BOX 1013
Boston, MA 02111

Reassigned Medicare billing, Massachusetts enrollment
24 clinicians in this Medicare group

NPI 1528012176 (617) 636-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

373 services74 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

202 services171 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

115 services111 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

112 services98 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

70 services65 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

63 services63 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

45 services32 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

31 services27 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

27 services26 patients

Destruction of precancer skin growth, 15 or more growths 17004

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

14 services14 patients

Destruction of skin growth, 15 or more growths 17111

"Destruction of skin growth" refers to a procedure where unwanted skin growths, such as warts or moles, are removed. In this case, 15 or more growths are treated. Techniques may include freezing, burning, or laser therapy. It's a safe, quick process to improve skin health.

12 services12 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220090

Location14 Prospect StreetMilford, MA 01757 · Worcester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01752 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.02/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

78.09

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KUCHNIR REALTY, LLC

Dermatology

11 APEX DR STE 103A
MARLBOROUGH, MA 01752

Middlesex County (508) 485-7779

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shiu-chung Au's NPI number?

The NPI number for Shiu-chung Au is 1841424272. It was assigned to this individual provider in the NPPES registry on May 13, 2009.

Where is Shiu-chung Au located?

Shiu-chung Au practices at 11 Apex Dr Ste 103A, Marlborough, MA 01752. The listed phone number is (508) 485-7779.

What is Shiu-chung Au's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Shiu-chung Au enrolled in Medicare?

Yes. Shiu-chung Au is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Shiu-chung Au's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shiu-chung Au reassigns Medicare benefits to 3 organizations: Louis Kuchnir MD PC (Marlborough, MA), Leominster Dermatology LLP (Leominster, MA) and Pratt Med/Surg Dermatology Associates Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Shiu-chung Au's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Shiu-chung Au accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Shiu-chung Au as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Shiu-chung Au affiliated with any hospitals?

According to CMS data, Shiu-chung Au is affiliated with Milford Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Shiu-chung Au was last updated on May 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.