John Ahn, D.M.D.
General Practice Dentistry · Douglaston, NY
John Ahn, D.M.D. is a general practice dentistry with a practice address in Douglaston, New York, and NPI 1396024196, issued on Aug 10, 2011. Check the license (New York 049851, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Ahn
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 049851 NY
Self-reported in NPPES; status is on the state search - Practice location
- 6004 Marathon Pkwy, Douglaston, NY 11362
- Phone
- (718) 225-4433
- Enumerated
- Aug 10, 2011
- Record last updated
- Aug 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 7,828 in New York → Look up another NPI →
Also registered at 6004 Marathon Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jay Ledner, D.D.S.General Practice Dentistry1245284876
Verify John Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 049851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average general practice dentistry in 2024
34 Medicare Part D claims for 20 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin18 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.
Industry payments in 2024: $65.35
4 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona 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.
John Ahn among 7,828 general practice dentistry records in New York
John Ahn, D.M.D. is one of 7,828 general practice dentistry records with a practice address in New York. 60% 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 76% of them.
- NPI issued2011 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2011 · 79% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 general practice dentistry records list a practice address in Douglaston
They are 4 of the 182 NPPES records with a practice address in Douglaston, and 7,828 general practice dentistry records in New York.
All 7,828 in New York → Every provider in Douglaston → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Barry Goldenberg, DDSDouglaston, NY 113621679714190
- Dana Kim, DDSLittle Neck, NY 113621437630449
- Peter Koys, D.D.S.Little Neck, NY 113621881890663
- Jay Ledner, D.D.S.Douglaston, NY 113621245284876
- Michael Lin, D.D.S.Little Neck, NY 113621750586640
- Kai Mai, D.D.S.Little Neck, NY 113621841370632
- John Schaf, DDSLittle Neck, NY 113621871706804
- Grace Shin, D.D.SLittle Neck, NY 113621295724565
Common questions
What is John Ahn, D.M.D.'s NPI number?
John Ahn, D.M.D.'s National Provider Identifier (NPI) is 1396024196, issued on Aug 10, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John Ahn, D.M.D. located?
The NPPES record lists a practice address at 6004 Marathon Pkwy, Douglaston, NY, 11362. Phone: (718) 225-4433. Providers update this record themselves, so call before visiting.
How can I verify John Ahn, D.M.D.'s license?
NPPES lists New York license number 049851, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does John Ahn, D.M.D. prescribe under Medicare Part D?
In 2024, John Ahn, D.M.D. had 34 Medicare Part D claims for 20 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.