NPPES file of Aug 9, 2026

John G. Kostides, DDS

General Practice Dentistry · Merrillville, IN

John G. Kostides, DDS is a general practice dentistry with a practice address in Merrillville, Indiana, and NPI 1841242179, issued on May 16, 2006. Check the license (Indiana 12009244, as entered in NPPES) with the Indiana 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
1841242179
Name
John G. Kostides
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
12009244 IN
Self-reported in NPPES; status is on the state search
Practice location
9205 Broadway, Merrillville, IN 46410
Phone
(219) 755-0123
Enumerated
May 16, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(219) 756-1463
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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Verify John G. Kostides in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 12009244
    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 Indiana license search

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12% fewer Medicare Part D claims than the average general practice dentistry in 2024

73 Medicare Part D claims for 51 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. John Kostides73
  2. Specialty average83

Most prescribed

  1. Amoxicillin51 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: $209.96

6 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.

  1. John Kostides$209.96
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

20 general practice dentistry records list a practice address in Merrillville

They are 20 of the 1,972 NPPES records with a practice address in Merrillville, and 2,066 general practice dentistry records in Indiana.

Other general practice dentistry records in Indiana

  1. Omar AasarFort Wayne, IN1699470385
  2. Layth Abbood, DDSFort Wayne, IN1912576075
  3. Grant Abernathey, D.D.S.Terre Haute, IN1750669388
  4. Joyce Ablog, D.D.S.Evansville, IN1336276187
  5. Thomas Abrell, D.D.S.Terre Haute, IN1356329346
  6. Simon Abu-Aita, DMDCrown Point, IN1891420410
  7. Denise Acosta, DMDFort Wayne, IN1548370018
  8. Kenneth Adams, D.D.S.Greenwood, IN1104246750
  9. Lawrence Adams, D.D.S.Hammond, IN1154454346
  10. Rachel Adams, DMDRensselaer, IN1538095260

Common questions

What is John G. Kostides, DDS's NPI number?

John G. Kostides, DDS's National Provider Identifier (NPI) is 1841242179, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John G. Kostides, DDS located?

The NPPES record lists a practice address at 9205 Broadway, Merrillville, IN, 46410. Phone: (219) 755-0123. Providers update this record themselves, so call before visiting.

How can I verify John G. Kostides, DDS's license?

NPPES lists Indiana license number 12009244, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does John G. Kostides, DDS prescribe under Medicare Part D?

In 2024, John G. Kostides, DDS had 73 Medicare Part D claims for 51 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.