William Colby Downs
Emergency Medicine Physician · Memphis, TN
William Colby Downs is an emergency medicine physician with a practice address in Memphis, Tennessee, and NPI 1912759333, issued on Apr 2, 2024. Check the license (Tennessee 77232, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Colby Downs
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 77232 TN
Self-reported in NPPES; status is on the state search - Practice location
- 920 Madison Ave Ste 447, Memphis, TN 38103
- Phone
- (901) 448-3197
- Enumerated
- Apr 2, 2024
- Record last updated
- May 29, 2026
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,174 in Tennessee → Look up another NPI →
Also registered at 920 Madison Ave Ste 447
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Colby Downs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 77232Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average emergency medicine physician in 2024
17 Medicare Part D claims for 13 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
William Colby Downs among 1,174 emergency medicine physician records in Tennessee
William Colby Downs is one of 1,174 emergency medicine physician records with a practice address in Tennessee. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than over 99% of them.
- NPI issued2024 · over 99% of these records are older, under 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
134 emergency medicine physician records list a practice address in Memphis
They are 134 of the 12,794 NPPES records with a practice address in Memphis, and 1,174 emergency medicine physician records in Tennessee.
All 1,174 in Tennessee → Every provider in Memphis → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Albert Bean, MDMemphis, TN 381031538160601
- Eric Benink, M.D.Memphis, TN 381031811925001
- Carolyn Charbonnet, MDMemphis, TN 381031275925901
- Tasha Ford, MDMemphis, TN 381031205836566
- Stephen Greene, M.D.Memphis, TN 381031659699635
- Sweeti Jain, M. D.Memphis, TN 381031992148431
- Stacey Jolley, M.D.Memphis, TN 381031538428289
- Tracy Legros, M.D., PH.D.Memphis, TN 381031639266380
Common questions
What is William Colby Downs's NPI number?
William Colby Downs's National Provider Identifier (NPI) is 1912759333, issued on Apr 2, 2024. An NPI identifies a provider in billing; it is not a license.
Where is William Colby Downs located?
The NPPES record lists a practice address at 920 Madison Ave Ste 447, Memphis, TN, 38103. Phone: (901) 448-3197. Providers update this record themselves, so call before visiting.
How can I verify William Colby Downs's license?
NPPES lists Tennessee license number 77232, 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 Colby Downs prescribe under Medicare Part D?
In 2024, William Colby Downs had 17 Medicare Part D claims for 13 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.