Thomas Yoon, DMD
General Practice Dentistry · Gaithersburg, MD
Thomas Yoon, DMD is a general practice dentistry with a practice address in Gaithersburg, Maryland, and NPI 1578832739, issued on Dec 17, 2011. Check the license (Maryland 15075, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas Yoon
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 15075 MD
Self-reported in NPPES; status is on the state search - Practice location
- 20219 Goshen RD, Gaithersburg, MD 20879
- Phone
- (240) 477-5921
- Enumerated
- Dec 17, 2011
- Record last updated
- Oct 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 2,408 in Maryland → Look up another NPI →
Verify Thomas Yoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 15075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average general practice dentistry in 2024
18 Medicare Part D claims for 11 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
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: $54.64
2 payments; by number, the most common kind was food and beverage; the largest payer was BioHorizons Implant Systems Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Thomas Yoon among 2,408 general practice dentistry records in Maryland
Thomas Yoon, DMD is one of 2,408 general practice dentistry records with a practice address in Maryland. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2018 · 72% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
68 general practice dentistry records list a practice address in Gaithersburg
They are 68 of the 2,580 NPPES records with a practice address in Gaithersburg, and 2,408 general practice dentistry records in Maryland.
All 2,408 in Maryland → Every provider in Gaithersburg → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Andrew Aziz, DDSGaithersburg, MD 208791962799767
- David Black, D.D.S.Gaithersburg, MD 208791285653626
- Neil Daftary, D.M.D.Gaithersburg, MD 208791770542714
- Janet Halsey, D.D.S.Gaithersburg, MD 208791740319185
- Eftekhar Hassani, D.D.SGaithersburg, MD 208791669645602
- Donna Limparis, DDSGaithersburg, MD 208791922106731
- Jennifer Matelis, D.D.S.Gaithersburg, MD 208791760485031
- Heather Nguyen, D.D.SGaithersburg, MD 208791427254408
Common questions
What is Thomas Yoon, DMD's NPI number?
Thomas Yoon, DMD's National Provider Identifier (NPI) is 1578832739, issued on Dec 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Yoon, DMD located?
The NPPES record lists a practice address at 20219 Goshen RD, Gaithersburg, MD, 20879. Phone: (240) 477-5921. Providers update this record themselves, so call before visiting.
How can I verify Thomas Yoon, DMD's license?
NPPES lists Maryland license number 15075, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Thomas Yoon, DMD prescribe under Medicare Part D?
In 2024, Thomas Yoon, DMD had 18 Medicare Part D claims for 11 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.