Roy Guster, D.D.S.
General Practice Dentistry · Chicago, IL
Roy Guster, D.D.S. is a general practice dentistry with a practice address in Chicago, Illinois, and NPI 1770796195, issued on May 8, 2007. Check the license (Illinois 19014472, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Roy Guster
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 19014472 IL
Self-reported in NPPES; status is on the state search - Practice location
- 9524 S Halsted St, Chicago, IL 60628
- Phone
- (773) 445-1009
- Enumerated
- May 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (773) 445-6939
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 5,276 in Illinois → Look up another NPI →
Verify Roy Guster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 19014472Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average general practice dentistry in 2024
106 Medicare Part D claims for 50 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 14 claims were for opioids.
Most prescribed
- Ibuprofen30 claims
- Amoxicillin29 claims
- Chlorhexidine Gluconate19 claims
- Acetaminophen-Codeine14 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.
Roy Guster among 5,276 general practice dentistry records in Illinois
Roy Guster, D.D.S. is one of 5,276 general practice dentistry 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 2007, is newer than 32% of them.
- NPI issued2007 · 32% of these records are older, 43% 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 updated2007 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X 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 general practice dentistry records list a practice address in Chicago
They are 1,148 of the 63,379 NPPES records with a practice address in Chicago, and 5,276 general practice dentistry records in Illinois.
All 5,276 in Illinois → Every provider in Chicago → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- William Collins, D.D.S. MPHChicago, IL 606281407055684
- Charles Dickson, D.D.S.Chicago, IL 606281144555657
- Laura Douglas, D.M.D.Chicago, IL 606281023496767
- Jeffrey Perman, D.D.S.Chicago, IL 606281356474696
- Amit Saparia, D.D.SChicago, IL 606281265654347
- Sonam SoodChicago, IL 606281932541521
- Brenda Taylor, DMDChicago, IL 606281114017662
- Tom Chan, D.D.SChicago, IL 606291407845936
Common questions
What is Roy Guster, D.D.S.'s NPI number?
Roy Guster, D.D.S.'s National Provider Identifier (NPI) is 1770796195, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roy Guster, D.D.S. located?
The NPPES record lists a practice address at 9524 S Halsted St, Chicago, IL, 60628. Phone: (773) 445-1009. Providers update this record themselves, so call before visiting.
How can I verify Roy Guster, D.D.S.'s license?
NPPES lists Illinois license number 19014472, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Roy Guster, D.D.S. prescribe under Medicare Part D?
In 2024, Roy Guster, D.D.S. had 106 Medicare Part D claims for 50 beneficiaries; the average among general practice dentistry prescribers was 83. 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.