NPPES file of Aug 9, 2026

Wenchi Chou, D.M.D.

Dentist · Chicago, IL

Wenchi Chou, D.M.D. is a dentist with a practice address in Chicago, Illinois, and NPI 1477788438, issued on May 20, 2009. Check the license (Illinois 019.027761, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1477788438
Name
Wenchi Chou
Credential
D.M.D.
Primary taxonomy
Dentist 122300000X
License number
019.027761 IL
Self-reported in NPPES; status is on the state search
Practice location
625 N Michigan Ave Ste 1710, Chicago, IL 60611
Phone
(312) 440-9200
Enumerated
May 20, 2009
Record last updated
May 20, 2009 (not updated in 17 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Wenchi Chou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 019.027761
    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
Find the Illinois license search

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94% more Medicare Part D claims than the average dentist in 2024

167 Medicare Part D claims for 50 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 23 claims were for opioids.

  1. Wenchi Chou167
  2. Specialty average86

Most prescribed

  1. Chlorhexidine Gluconate50 claims
  2. Amoxicillin47 claims
  3. Ibuprofen24 claims
  4. Hydrocodone-Acetaminophen16 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.

Industry payments in 2024: $79.07

4 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Wenchi Chou$79.07
  2. Specialty average$540.36

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

Wenchi Chou among 4,522 dentist records in Illinois

Wenchi Chou, D.M.D. is one of 4,522 dentist records with a practice address in Illinois. 64% 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 46% of them.

  • NPI issued2009 · 46% of these records are older, 50% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2009 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,148 dentist records list a practice address in Chicago

They are 1,148 of the 63,379 NPPES records with a practice address in Chicago, and 4,522 dentist records in Illinois.

The 8 dentist records with the nearest ZIP codes

  1. Daniel Au, DDSChicago, IL 606111992906309
  2. Kenneth Brooks, D.D.SChicago, IL 606111750584298
  3. William Couvelis, DDSChicago, IL 606111013043199
  4. Agatha Dziedziech, DDSChicago, IL 606111790851053
  5. William Frericks, DDSChicago, IL 606111427050608
  6. William Friedrich, DDSChicago, IL 606111225175805
  7. Robin Gay, DDSChicago, IL 606111548461940
  8. Ruth Griggs Nguyen, DDSChicago, IL 606111750447884

Common questions

What is Wenchi Chou, D.M.D.'s NPI number?

Wenchi Chou, D.M.D.'s National Provider Identifier (NPI) is 1477788438, issued on May 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Wenchi Chou, D.M.D. located?

The NPPES record lists a practice address at 625 N Michigan Ave Ste 1710, Chicago, IL, 60611. Phone: (312) 440-9200. Providers update this record themselves, so call before visiting.

How can I verify Wenchi Chou, D.M.D.'s license?

NPPES lists Illinois license number 019.027761, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Wenchi Chou, D.M.D. prescribe under Medicare Part D?

In 2024, Wenchi Chou, D.M.D. had 167 Medicare Part D claims for 50 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.

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.