2026 NPPES data Oral and Maxillofacial Surgery (Dentist) NPI 1942876479 DMD
Verify on CMS →

VIVIAN CHAU, DMD

Oral and Maxillofacial Surgery (Dentist) in MINNEAPOLIS, Minnesota. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
81
Medicare Part D claims · 35 beneficiaries · Oral and Maxillofacial Surgery (Dentist) avg: 378
Industry payments
$436
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: VIVIAN CHAU, DMD is a Oral and Maxillofacial Surgery (Dentist) ([object Object]) practicing in MINNEAPOLIS, Minnesota with a Medicare Part D prescribing footprint of 81 claims across 35 beneficiaries . Industry payments of $436 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: VIVIAN CHAU, DMD filed 81 Medicare Part D claims in 2023 across MINNEAPOLIS, Minnesota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

VIVIAN CHAU, DMD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/03/2021

NPI 1942876479

Primary specialty

Oral and Maxillofacial Surgery (Dentist)

Mid-sized

7,631 US NPIs in this specialty

Medicare Part D claims

81 79% vs specialty avg

2023 prescription claims

Specialty avg: 378

Specialty distribution in Minnesota

How Oral and Maxillofacial Surgery (Dentist) compares to other specialties among Minnesota providers

Minnesota providers

Oral and Maxillofacial Surgery (Dentist) share within Minnesota

1. Oral and Maxillofacial Surgery (Dentist)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oral and Maxillofacial Surgery (Dentist) share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Oral and Maxillofacial Surgery (Dentist) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oral and Maxillofacial Surgery (Dentist) ABMS/AOA estimate

Est. board-certified rate (Oral and Maxillofacial Surgery (Dentist)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oral and Maxillofacial Surgery (Dentist)) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

VIVIAN CHAU, DMD is a Oral and Maxillofacial Surgery (Dentist) provider practicing in MINNEAPOLIS, Minnesota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DMD. NPI: 1942876479. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

VIVIAN CHAU, DMD appears in the CMS NPPES registry as a Oral and Maxillofacial Surgery (Dentist) provider holding DMD credentials at 515 DELAWARE ST SE, MINNEAPOLIS, MN, 55455, with a listed phone of (612) 624-8600. NPI 1942876479 was issued on 06/03/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAU most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 81 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $454 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Oral and Maxillofacial Surgery (Dentist) is a mid-sized specialty nationwide, with 7,631 enrolled providers across 52 states and an average of 378 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

515 DELAWARE ST SE
MINNEAPOLIS, MN 55455

Provider Details

NPI 1942876479
Specialty Oral and Maxillofacial Surgery (Dentist)
Credentials DMD
Gender Female
NPI Issued 06/03/2021

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for VIVIAN CHAU, DMD. Source: openpaymentsdata.cms.gov.

Total received

$436

Largest payer

Medical Device Business Services, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

81
Total Claims
$454
Total Drug Cost
35
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
81
Total Day Supply
830
Generic Drug Cost
$426
Antibiotic Claims
25

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
2.28
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Chlorhexidine Gluconate
33
Amoxicillin
18
Ibuprofen
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Oral and Maxillofacial Surgery (Dentist) Overview

How VIVIAN CHAU, DMD fits within the Oral and Maxillofacial Surgery (Dentist) landscape nationally.

7,631
Oral and Maxillofacial Surgery (Dentist) Providers in US
52
States with Oral and Maxillofacial Surgery (Dentist)
378
Avg Claims per Provider

VIVIAN CHAU, DMD's 81 claims are below the specialty average of 378.

Nearby Oral and Maxillofacial Surgery (Dentist) Providers in Minnesota

Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as CHAU.

Compare Oral and Maxillofacial Surgery (Dentist) nationally: see state-by-state distribution →

Frequently Asked Questions

What is VIVIAN CHAU, DMD's specialty?
VIVIAN CHAU, DMD specializes in Oral and Maxillofacial Surgery (Dentist) and practices in MINNEAPOLIS, Minnesota. Credentials: DMD.
How much does VIVIAN CHAU, DMD prescribe under Medicare Part D?
In 2023, VIVIAN CHAU, DMD wrote 81 Medicare Part D claims totaling $454 in drug costs for 35 beneficiaries.
Where is VIVIAN CHAU, DMD located?
VIVIAN CHAU, DMD is located at 515 DELAWARE ST SE, MINNEAPOLIS, MN, 55455. Phone: (612) 624-8600.
What is VIVIAN CHAU, DMD's NPI number?
VIVIAN CHAU, DMD's National Provider Identifier (NPI) is 1942876479, issued on 06/03/2021.
How many Oral and Maxillofacial Surgery (Dentist) providers are there in the US?
There are 7,631 Oral and Maxillofacial Surgery (Dentist) providers across 52 states in the US. The average Oral and Maxillofacial Surgery (Dentist) provider writes 378 Medicare Part D claims per year.
What drugs does VIVIAN CHAU, DMD prescribe most often?
Based on 2023 Medicare Part D data, VIVIAN CHAU, DMD's most frequently prescribed drugs include Chlorhexidine Gluconate, Amoxicillin, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does VIVIAN CHAU, DMD accept Medicare?
VIVIAN CHAU, DMD appears in CMS Medicare data with 81 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify VIVIAN CHAU, DMD's credentials?
VIVIAN CHAU, DMD's NPI is 1942876479 with credentials DMD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology