William Simpson Davis, MD
Family Medicine Physician · Winchester, KY
William Simpson Davis, MD is a family medicine physician with a practice address in Winchester, Kentucky, and NPI 1891723680, issued on Jun 29, 2006. Check the license (Kentucky 21156, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- William Simpson Davis
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 21156 KY
Self-reported in NPPES; status is on the state search - Practice location
- 1414 W Lexington Ave, Winchester, KY 40391
- Phone
- (859) 737-0001
- Enumerated
- Jun 29, 2006
- Record last updated
- Jan 23, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (859) 737-6658
- Medicaid ID
- 64211568 KY
- Medicare enrollment
- Enrolled (PECOS I20050325000278); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,968 in Kentucky → Look up another NPI →
Verify William Simpson Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 21156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average family medicine physician in 2024
9,525 Medicare Part D claims for 318 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 236 claims were for opioids.
Most prescribed
- Gabapentin441 claims
- Atorvastatin Calcium398 claims
- Lisinopril290 claims
- Omeprazole241 claims
- Amlodipine Besylate220 claims
- Levothyroxine Sodium215 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
- Clark Regional Physician Practices LLCWinchester, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Simpson Davis among 1,968 family medicine physician records in Kentucky
William Simpson Davis, MD is one of 1,968 family medicine physician records with a practice address in Kentucky. 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 50% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1978 · median 2006 among the 1,277 with a school on file
- Record last updated2014 · 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 207Q00000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 family medicine physician records list a practice address in Winchester
They are 11 of the 431 NPPES records with a practice address in Winchester, and 1,968 family medicine physician records in Kentucky.
All 1,968 in Kentucky → Every provider in Winchester → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Charles Arnold, M.D.Winchester, KY 403911508203266
- Bennett Asher, MDWinchester, KY 403911689639239
- Thomas Burchett, MDWinchester, KY 403911184738965
- Michelle Carpenter, DOWinchester, KY 403911952312241
- Patrick Downs, DOWinchester, KY 403911063432730
- Eric Fox, MDWinchester, KY 403911174565147
- James Joyner, M.D.Winchester, KY 403911699110916
- Erik PerezWinchester, KY 403911245934256
Common questions
What is William Simpson Davis, MD's NPI number?
William Simpson Davis, MD's National Provider Identifier (NPI) is 1891723680, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Simpson Davis, MD located?
The NPPES record lists a practice address at 1414 W Lexington Ave, Winchester, KY, 40391. Phone: (859) 737-0001. Providers update this record themselves, so call before visiting.
How can I verify William Simpson Davis, MD's license?
NPPES lists Kentucky license number 21156, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Simpson Davis, MD prescribe under Medicare Part D?
In 2024, William Simpson Davis, MD had 9,525 Medicare Part D claims for 318 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.