NPPES file of Aug 9, 2026

Clifford L. Johnson, D.M.D

Endodontics · Suwanee, GA

Clifford L. Johnson, D.M.D is an endodontics with a practice address in Suwanee, Georgia, and NPI 1336366723, issued on Apr 19, 2007. Check the license (Georgia 011879, as entered in NPPES) with the Georgia 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
1336366723
Name
Clifford L. Johnson
Credential
D.M.D
Primary taxonomy
Endodontics 1223E0200X
License number
011879 GA
Self-reported in NPPES; status is on the state search
Practice location
4060 Johns Creek Pkwy, Suwanee, GA 30024
Phone
(678) 473-0205
Enumerated
Apr 19, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(678) 473-0203
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 4060 Johns Creek Pkwy

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

  1. Robert Clayton, M.D.Internal Medicine Physician1558436907
  2. Terry Lemons, DDSGeneral Practice Dentistry1326068735
  3. Chalam Mahadevan, M.D.Surgery Physician1447463609
  4. Ali Mehraban, D.M.DPeriodontics1407073877
  5. Steven Perlow, M.D.Urology Physician1972635811
  6. Marc Stewart, PTPhysical Therapist1982735395

Verify Clifford L. Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Georgia board licenses this profession
    Search for license 011879
    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
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5.2 times the Medicare Part D claims of the average endodontics in 2024

624 Medicare Part D claims for 414 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. 87 claims were for opioids.

  1. Clifford Johnson624
  2. Specialty average121

Most prescribed

  1. Penicillin V Potassium249 claims
  2. Methylprednisolone120 claims
  3. Azithromycin112 claims
  4. Acetaminophen-Codeine87 claims
  5. Amoxicillin22 claims
  6. Clindamycin Hcl22 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: $39.24

1 payment: food and beverage; the largest payer was Dentsply Sirona 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. Clifford Johnson$39
  2. Specialty average$49,740

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

Clifford L. Johnson among 154 endodontics records in Georgia

Clifford L. Johnson, D.M.D is one of 154 endodontics records with a practice address in Georgia. 73% 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 33% of them.

  • NPI issued2007 · 33% of these records are older, 40% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2007 · 68% 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 Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in Georgia

There are 154 endodontics records in Georgia.

The 8 endodontics records with the nearest ZIP codes

  1. Darlene Davis, DDSSuwanee, GA 300241538379862
  2. Randall Coggins, DMD MSAlpharetta, GA 300221790085041
  3. Christopher Glass, DMDAlpharetta, GA 300221356643407
  4. Stephen Parente, D.D.S.Alpharetta, GA 300221376645614
  5. Tracie Zielinski, DDSAlpharetta, GA 300221952506891
  6. Lucas Connor, DDSDacula, GA 300191326552522
  7. Anthony DidatoDacula, GA 300191376834424
  8. Brian Pugh, DMDDacula, GA 300191245249457

Common questions

What is Clifford L. Johnson, D.M.D's NPI number?

Clifford L. Johnson, D.M.D's National Provider Identifier (NPI) is 1336366723, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Clifford L. Johnson, D.M.D located?

The NPPES record lists a practice address at 4060 Johns Creek Pkwy, Suwanee, GA, 30024. Phone: (678) 473-0205. Providers update this record themselves, so call before visiting.

How can I verify Clifford L. Johnson, D.M.D's license?

NPPES lists Georgia license number 011879, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.

How much does Clifford L. Johnson, D.M.D prescribe under Medicare Part D?

In 2024, Clifford L. Johnson, D.M.D had 624 Medicare Part D claims for 414 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.