William Thomas Prater, MD
Internal Medicine Physician · Memphis, TN
William Thomas Prater, MD is an internal medicine physician with a practice address in Memphis, Tennessee, and NPI 1386388007, issued on Apr 27, 2022. Check the license (Tennessee 72558, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Thomas Prater
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 72558 TN
Self-reported in NPPES; status is on the state search - Practice location
- 6019 Walnut Grove RD, Memphis, TN 38120
- Phone
- (901) 226-5000
- Enumerated
- Apr 27, 2022
- Record last updated
- Jul 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20250718002202); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 6019 Walnut Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Thomas Prater in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 72558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average internal medicine physician in 2024
503 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium63 claims
- Amlodipine Besylate28 claims
- Albuterol Sulfate Hfa21 claims
- Hydrochlorothiazide20 claims
- Jardiance17 claims
- Pantoprazole Sodium17 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.
Bills Medicare through one group practice
- Southeastern Physician Services PCMemphis, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Thomas Prater among 2,596 internal medicine physician records in Tennessee
William Thomas Prater, MD is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 96% of them.
- NPI issued2022 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2022 · median 2003 among the 1,705 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
325 internal medicine physician records list a practice address in Memphis
They are 325 of the 12,794 NPPES records with a practice address in Memphis, and 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Memphis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Olugbenga Adebanjo, M.DMemphis, TN 381201144274200
- Joseph Allen, MDMemphis, TN 381201508887365
- Amin Bandealy, M.D.Memphis, TN 381201174555247
- Cary Finn, M.D.Memphis, TN 381201033192992
- John Fowler, M.D.Memphis, TN 381201982658506
- Alka Kamo, M.D.Memphis, TN 381201295738128
- Ashutosh Mishra, MDMemphis, TN 381201942262829
- Kamal Mohan, MDMemphis, TN 381201073514022
Common questions
What is William Thomas Prater, MD's NPI number?
William Thomas Prater, MD's National Provider Identifier (NPI) is 1386388007, issued on Apr 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is William Thomas Prater, MD located?
The NPPES record lists a practice address at 6019 Walnut Grove RD, Memphis, TN, 38120. Phone: (901) 226-5000. Providers update this record themselves, so call before visiting.
How can I verify William Thomas Prater, MD's license?
NPPES lists Tennessee license number 72558, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Thomas Prater, MD prescribe under Medicare Part D?
In 2024, William Thomas Prater, MD had 503 Medicare Part D claims for 70 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.