Registry data as of Aug 27, 2026

John Workman, D.D.S. ENDODONTICS

Endodontics · Nashville, TN

John Workman, D.D.S. ENDODONTICS is an endodontics with a practice address in Nashville, Tennessee, and NPI 1891959243, issued on Jul 15, 2008. Check the license (Tennessee 8893, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1891959243
Name
John Workman
Credential
D.D.S. ENDODONTICS
Primary taxonomy
Endodontics 1223E0200X
License number
8893 TN
Self-reported in NPPES; status is on the state search
Practice location
4027 Hillsboro Pike, Nashville, TN 37215
Phone
(615) 383-4455
Enumerated
Jul 15, 2008
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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Also registered at 4027 Hillsboro Pike

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

  1. Mark Callanen, DPTPhysical Therapist1730164815
  2. Andy Detwiler, OTOccupational Therapist1467680066
  3. Phillip Faucette, D.D.S.Endodontics1760778542
  4. Margaret Jones, D.D.S. ENDODONTICSEndodontics1043447683

Verify John Workman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 8893
    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 Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

61% fewer Medicare Part D claims than the average endodontics in 2024

47 Medicare Part D claims for 41 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. 12 claims were for opioids.

  1. John Workman47
  2. Specialty average121

Most prescribed

  1. Amoxicillin21 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: $34.77

3 payments, mostly food and beverage; the largest payer was Sonendo Inc. The 2,057 providers of this specialty with any payment received $49,739.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Workman$34.77
  2. Specialty average$49,739.86

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

Endodontics providers in Tennessee

There are 105 endodontics records in Tennessee.

Other endodontics records in Tennessee

  1. Bindu Aggarwal Soni, DMDThompsons Station, TN1609081827
  2. Sam Alborz, DDSKnoxville, TN1730373168
  3. Frank Balaban, D.D.S.Knoxville, TN1104154939
  4. Jeffrey Bell, D.D.S.Murfreesboro, TN1710109996
  5. Joel Berlin, DDSChattanooga, TN1336354257
  6. James Blaney, DDS, MSDGoodlettsville, TN1003889874
  7. Poppy Blaseio, D.D.S.Nashville, TN1811398951
  8. Robert Block, DDS, MSOoltewah, TN1669792966
  9. Robert Borders, D.D.S., M.S.D.Nashville, TN1366411399
  10. Bonnie Boudreaux, DMD, MSSweetwater, TN1538419023

Common questions

What is John Workman, D.D.S. ENDODONTICS's NPI number?

John Workman, D.D.S. ENDODONTICS's National Provider Identifier (NPI) is 1891959243, issued on Jul 15, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Workman, D.D.S. ENDODONTICS located?

The NPPES record lists a practice address at 4027 Hillsboro Pike, Nashville, TN, 37215. Phone: (615) 383-4455. Providers update this record themselves, so call before visiting.

How can I verify John Workman, D.D.S. ENDODONTICS's license?

NPPES lists Tennessee license number 8893, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does John Workman, D.D.S. ENDODONTICS prescribe under Medicare Part D?

In 2024, John Workman, D.D.S. ENDODONTICS had 47 Medicare Part D claims for 41 beneficiaries; the average among endodontics prescribers was 121. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.