NPPES file of Aug 9, 2026

Johnathon Grant Winkler, D.D.S.

Endodontics · Beckley, WV

Johnathon Grant Winkler, D.D.S. is an endodontics with a practice address in Beckley, West Virginia, and NPI 1104091370, issued on Apr 28, 2008. Check the license (West Virginia 3589, as entered in NPPES) with the West Virginia 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
1104091370
Name
Johnathon Grant Winkler
Credential
D.D.S.
Primary taxonomy
Endodontics 1223E0200X
License number
3589 WV
Self-reported in NPPES; status is on the state search
Practice location
3873 Robert C Byrd Dr, Beckley, WV 25801
Phone
(304) 599-7668
Enumerated
Apr 28, 2008
Record last updated
Sep 2, 2008 (not updated in 18 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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Verify Johnathon Grant Winkler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich West Virginia board licenses this profession
    Search for license 3589
    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 West Virginia license search

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96% more Medicare Part D claims than the average endodontics in 2024

237 Medicare Part D claims for 112 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D.

  1. Johnathon Winkler237
  2. Specialty average121

Most prescribed

  1. Methylprednisolone65 claims
  2. Amoxicillin-Clavulanate Potass57 claims
  3. Chlorhexidine Gluconate40 claims
  4. Amoxicillin22 claims
  5. Azithromycin17 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.

Johnathon Grant Winkler among 31 endodontics records in West Virginia

Johnathon Grant Winkler, D.D.S. is one of 31 endodontics records with a practice address in West Virginia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 48% of them.

  • NPI issued2008 · 48% of these records are older, 35% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2008 · 58% 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 West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in West Virginia

There are 31 endodontics records in West Virginia.

The 8 endodontics records with the nearest ZIP codes

  1. Joshua Pruden, DDSBeckley, WV 258011740520774
  2. Nitin Rastogi, DDSBeckley, WV 258011174173090
  3. William Robertson, D.D.S., M.S.Wheeling, WV 260031225109374
  4. Douglas Robertson, D.D.S., M.S.Wheeling, WV 260031578628038
  5. Christopher Hugh, DDSHurricane, WV 255261215038419
  6. Troy McGrew, DDS,MSHurricane, WV 255261528154457
  7. Nicholas Taylor, D.D.S., M.S.Hurricane, WV 255261861690398
  8. Mark Byron, D.D.S., M.S.Parkersburg, WV 261011003924473

Common questions

What is Johnathon Grant Winkler, D.D.S.'s NPI number?

Johnathon Grant Winkler, D.D.S.'s National Provider Identifier (NPI) is 1104091370, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Johnathon Grant Winkler, D.D.S. located?

The NPPES record lists a practice address at 3873 Robert C Byrd Dr, Beckley, WV, 25801. Phone: (304) 599-7668. Providers update this record themselves, so call before visiting.

How can I verify Johnathon Grant Winkler, D.D.S.'s license?

NPPES lists West Virginia license number 3589, as entered by the provider. Search the West Virginia board that licenses this profession; the NPPES record confirms identity only.

How much does Johnathon Grant Winkler, D.D.S. prescribe under Medicare Part D?

In 2024, Johnathon Grant Winkler, D.D.S. had 237 Medicare Part D claims for 112 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.

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.