John M. Machen, DDS
Dentist · Kingsport, TN
John M. Machen, DDS is a dentist with a practice address in Kingsport, Tennessee, and NPI 1467672451, issued on May 1, 2007. Check the license (Tennessee 4846, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John M. Machen
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 4846 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1567 N Eastman RD Ste 8, Kingsport, TN 37664
- Phone
- (423) 245-4721
- Enumerated
- May 1, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,525 in Tennessee → Look up another NPI →
Verify John M. Machen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 4846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average dentist in 2024
285 Medicare Part D claims for 172 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Cephalexin175 claims
- Amoxicillin64 claims
- Hydrocodone-Acetaminophen12 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.
John M. Machen among 1,525 dentist records in Tennessee
John M. Machen, DDS is one of 1,525 dentist records with a practice address in Tennessee. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 61% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 dentist records list a practice address in Kingsport
They are 26 of the 1,986 NPPES records with a practice address in Kingsport, and 1,525 dentist records in Tennessee.
All 1,525 in Tennessee → Every provider in Kingsport → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Kathryn Allen, D.D.S.Kingsport, TN 376641740537943
- Jacob Bateman, D.D.S.Kingsport, TN 376641841604055
- Courtney Blankenship, DMDKingsport, TN 376641033723499
- Larry Gillenwater, DDSKingsport, TN 376641861417651
- Charles Guest, DDSKingsport, TN 376641871629303
- Cheston Guest, DMDKingsport, TN 376641780710210
- Meaghan Guest Wolfe, DMDKingsport, TN 376641801923974
- Phillip Marshall, D.D.S.Kingsport, TN 376641528354404
Common questions
What is John M. Machen, DDS's NPI number?
John M. Machen, DDS's National Provider Identifier (NPI) is 1467672451, issued on May 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John M. Machen, DDS located?
The NPPES record lists a practice address at 1567 N Eastman RD Ste 8, Kingsport, TN, 37664. Phone: (423) 245-4721. Providers update this record themselves, so call before visiting.
How can I verify John M. Machen, DDS's license?
NPPES lists Tennessee license number 4846, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does John M. Machen, DDS prescribe under Medicare Part D?
In 2024, John M. Machen, DDS had 285 Medicare Part D claims for 172 beneficiaries; the average among dentist prescribers was 86. 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.