NPPES file of Aug 9, 2026

John Clyde Williams, M.D.

Hospitalist Physician · Austell, GA

John Clyde Williams, M.D. is a hospitalist physician with a practice address in Austell, Georgia, and NPI 1841467198, issued on May 14, 2008. Check the license (Georgia 81809, as entered in NPPES) on the Georgia Composite Medical Board; 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
1841467198
Name
John Clyde Williams
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
81809 GA
207952 LA
MD.31678 AL
E-6744 AR
Self-reported in NPPES; status is on the state search
Practice location
1664 Mulkey RD, Austell, GA 30106
Phone
(770) 422-1372
Enumerated
May 14, 2008
Record last updated
May 25, 2023
Medicare enrollment
Enrolled (PECOS I20200320002303); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1664 Mulkey RD

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

  1. Shriram Alapaty, MDPulmonary Disease Physician1902254568
  2. Ragheed Alturkmani, M.D.Pulmonary Disease Physician1497947220
  3. Sylvonne Cox, PA-CMedical Physician Assistant1992863385
  4. Prakash Desai, M.D.Pediatric Adolescent Medicine Physician1750366472
  5. Daniela Guilliam, M.D.Sleep Medicine (Psychiatry & Neurology) Physician1245487800
  6. Nidhi Huff, M.D.Pulmonary Disease Physician1659515864

Verify John Clyde Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 81809
    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
Open the Georgia 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.

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41% more Medicare Part D claims than the average hospitalist physician in 2024

733 Medicare Part D claims for 155 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of claims.

  1. John Williams733
  2. Specialty average521

Most prescribed

  1. Albuterol Sulfate Hfa149 claims
  2. Trelegy Ellipta86 claims
  3. Prednisone36 claims
  4. Fluticasone-Salmeterol33 claims
  5. Anoro Ellipta31 claims
  6. Arnuity Ellipta28 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: $927.27

41 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Williams$927.27
  2. Specialty average$494.84

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

Bills Medicare through one group practice

  1. Wellstar Medical Group LLCAustell, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John Clyde Williams among 967 hospitalist physician records in Georgia

John Clyde Williams, M.D. is one of 967 hospitalist physician records with a practice address in Georgia. 92% 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 32% of them.

  • NPI issued2008 · 32% of these records are older, 59% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated2006 · median 2008 among the 849 with a school on file
  • Record last updated2023 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

23 hospitalist physician records list a practice address in Austell

They are 23 of the 1,056 NPPES records with a practice address in Austell, and 967 hospitalist physician records in Georgia.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Hamid Bakhtiary, M.D.Austell, GA 301061275583825
  2. Yacob Ghebremeskel, M.D.Austell, GA 301061780765776
  3. Rajnish Gujral, MDAustell, GA 301061366423519
  4. Karen Hamilton, M.D.Austell, GA 301061740363746
  5. Yousef Hindi, MDAustell, GA 301061023099272
  6. Olatunde Idowu, MDAustell, GA 301061417951369
  7. Vijay Dev Lakkappa, M.D.Austell, GA 301061477572618
  8. Rodrick Lawton, M.D.Austell, GA 301061689682486

Common questions

What is John Clyde Williams, M.D.'s NPI number?

John Clyde Williams, M.D.'s National Provider Identifier (NPI) is 1841467198, issued on May 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Clyde Williams, M.D. located?

The NPPES record lists a practice address at 1664 Mulkey RD, Austell, GA, 30106. Phone: (770) 422-1372. Providers update this record themselves, so call before visiting.

How can I verify John Clyde Williams, M.D.'s license?

NPPES lists Georgia license number 81809, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Clyde Williams, M.D. prescribe under Medicare Part D?

In 2024, John Clyde Williams, M.D. had 733 Medicare Part D claims for 155 beneficiaries; the average among hospitalist physician prescribers was 521. 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.