Garrett David Gast, DDS
Dentist · Chicago, IL
Garrett David Gast, DDS is a dentist with a practice address in Chicago, Illinois, and NPI 1154595379, issued on Apr 18, 2008. Check the license (Illinois 019028623, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Garrett David Gast
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 019028623 IL
9844 KY
56258 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3435 W Irving Park RD, Chicago, IL 60618
- Phone
- (773) 588-8200
- Enumerated
- Apr 18, 2008
- Record last updated
- Sep 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (773) 588-8208
- Entity
- Type 1 · individual
Also registered at 3435 W Irving Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kassim Bazirgan, DMDDentist1174016992
- Alena Bukhar, DMDOrthodontics and Dentofacial Orthopedics Dentistry1861905028
- Sara Ahmad Imtiaz, DMDDentist1306575717
Verify Garrett David Gast in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019028623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% more Medicare Part D claims than the average dentist in 2024
155 Medicare Part D claims for 87 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 35 claims were for opioids.
Most prescribed
- Amoxicillin81 claims
- Hydrocodone-Acetaminophen30 claims
- Clindamycin Hcl12 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.
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.
All 1,148 in Chicago → All 4,522 in Illinois → Every provider in Chicago →
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- Ghassan Abdallah, DMDOak Lawn, IL1720179021
- Housam Abdallah, DMDJoliet, IL1811673973
Common questions
What is Garrett David Gast, DDS's NPI number?
Garrett David Gast, DDS's National Provider Identifier (NPI) is 1154595379, issued on Apr 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Garrett David Gast, DDS located?
The NPPES record lists a practice address at 3435 W Irving Park RD, Chicago, IL, 60618. Phone: (773) 588-8200. Providers update this record themselves, so call before visiting.
How can I verify Garrett David Gast, DDS's license?
NPPES lists Illinois license number 019028623, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Garrett David Gast, DDS prescribe under Medicare Part D?
In 2024, Garrett David Gast, DDS had 155 Medicare Part D claims for 87 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.