NPPES file of Aug 9, 2026

Gabriel Sim, D.D.S.

Endodontics · Chicago, IL

Gabriel Sim, D.D.S. is an endodontics with a practice address in Chicago, Illinois, and NPI 1730526229, issued on May 24, 2013. Check the license (Illinois 021.001924, 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
1730526229
Name
Gabriel Sim
Credential
D.D.S.
Primary taxonomy
Endodontics 1223E0200X
License numbers
021.001924 IL
019.024019 IL
Self-reported in NPPES; status is on the state search
Practice location
2551 N Clark St, Chicago, IL 60614
Phone
(773) 871-2161
Enumerated
May 24, 2013
Record last updated
May 24, 2013 (not updated in 13 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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8 nearest endodontics records → All 214 in Illinois → Look up another NPI →

Also registered at 2551 N Clark St

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

  1. Gary Bucher, MDAdult Medicine Physician1770664856
  2. Julianne Carrara, DMD MSEndodontics1831253491
  3. Emily DacostaRegistered Dietitian1770225294
  4. Aaron Donnell, MDAllergy & Immunology Physician1154304848
  5. Neel French, MDInternal Medicine Physician1417069659
  6. Ted GehrigGeneral Practice Dentistry1013166420

Verify Gabriel Sim 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 021.001924    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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74% fewer Medicare Part D claims than the average endodontics in 2024

32 Medicare Part D claims for 20 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gabriel Sim32
  2. Specialty average121

Most prescribed

  1. Amoxicillin13 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.

Gabriel Sim among 214 endodontics records in Illinois

Gabriel Sim, D.D.S. is one of 214 endodontics 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 2013, is newer than 81% of them.

  • NPI issued2013 · 81% of these records are older, 15% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2013 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in Illinois

There are 214 endodontics records in Illinois.

All 214 in Illinois → Every provider in Chicago → Endodontics nationwide →

The 8 endodontics records with the nearest ZIP codes

  1. Julianne Carrara, DMD MSChicago, IL 606141831253491
  2. Milton Davenport, D.M.D.Chicago, IL 606141922293133
  3. Nermeen Moussa, BDS, MSChicago, IL 606141093907024
  4. Paul Vizgirda, DDSChicago, IL 606141013134378
  5. Arjun Gohil, DDSChicago, IL 606131316502180
  6. Satish Alapati, D.D.SChicago, IL 606121497042816
  7. Vashti BuesoChicago, IL 606121467067967
  8. Shlomo Elbahary, DMD, PHDChicago, IL 606121033955695

Common questions

What is Gabriel Sim, D.D.S.'s NPI number?

Gabriel Sim, D.D.S.'s National Provider Identifier (NPI) is 1730526229, issued on May 24, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Gabriel Sim, D.D.S. located?

The NPPES record lists a practice address at 2551 N Clark St, Chicago, IL, 60614. Phone: (773) 871-2161. Providers update this record themselves, so call before visiting.

How can I verify Gabriel Sim, D.D.S.'s license?

NPPES lists Illinois license number 021.001924, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Gabriel Sim, D.D.S. prescribe under Medicare Part D?

In 2024, Gabriel Sim, D.D.S. had 32 Medicare Part D claims for 20 beneficiaries; the average among endodontics prescribers was 121. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.