Registry data as of Aug 27, 2026

Zachary Breen, DDS

Dentist · Great Lakes, IL

Zachary Breen, DDS is a dentist with a practice address in Great Lakes, Illinois, and NPI 1619424678, issued on Sep 7, 2016. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1619424678
Name
Zachary Breen
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
2901021843 MI
Self-reported in NPPES; status is on the state search
Practice location
3440 Ohio St, Great Lakes, IL 60088
Phone
(847) 688-2100
Enumerated
Sep 7, 2016
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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Also registered at 3440 Ohio St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bess Andrews, RDHBSDental Hygienist1033989850
  2. David Anguiano, DDSGeneral Practice Dentistry1669034716
  3. Alexandra BoneDentist1174443790
  4. Neil Bresnahan, D.D.S.Dentist1154705549
  5. Morgan Chown, DMDPublic Health Dentistry1043130594
  6. Idalmy ChuyDental Hygienist1083484802

Verify Zachary Breen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

47% more Medicare Part D claims than the average dentist in 2024

132 Medicare Part D claims for 85 beneficiaries, against an average of 90 among the 51,502 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Zachary Breen132
  2. Specialty average90

Most prescribed

  1. Amoxicillin70 claims
  2. Cephalexin14 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.

52 dentist records list a Great Lakes practice address

They are 52 of the 271 NPPES records with a Great Lakes practice address, and 4,688 dentist records in Illinois.

Other dentist records in Illinois

  1. Naailah Aaishah, DMDChicago, IL1770404774
  2. Juan Abadia, D.D.S.Wheeling, IL1619389681
  3. Gilbert Abadilla, DDSBloomingdale, IL1710003686
  4. Marwan Abbas, DMDChicago, IL1912490749
  5. David Abbott, D.D.S.Wheaton, IL1114133733
  6. Abdallah AbboudChicago, IL1962702068
  7. Nancy Abdala, D.D.S.Chicago, IL1467682302
  8. Fathi Abdallah, DMDOak Lawn, IL1447827225
  9. Ghassan Abdallah, DMDOak Lawn, IL1720179021
  10. Housam Abdallah, DMDJoliet, IL1811673973

Common questions

What is Zachary Breen, DDS's NPI number?

Zachary Breen, DDS's National Provider Identifier (NPI) is 1619424678, issued on Sep 7, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Zachary Breen, DDS located?

The NPPES record lists a practice address at 3440 Ohio St, Great Lakes, IL, 60088. Phone: (847) 688-2100. Providers update this record themselves, so call before visiting.

How can I verify Zachary Breen, DDS's license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Zachary Breen, DDS prescribe under Medicare Part D?

In 2024, Zachary Breen, DDS had 132 Medicare Part D claims for 85 beneficiaries; the average among dentist prescribers was 90. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.