Thomas William Knowles, DO
Internal Medicine Physician · Charleston, WV
Thomas William Knowles, DO is an internal medicine physician with a practice address in Charleston, West Virginia, and NPI 1497490304, issued on May 4, 2022. Check the license (West Virginia 4950, as entered in NPPES) on the West Virginia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Thomas William Knowles
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4950 WV
Self-reported in NPPES; status is on the state search - Practice location
- 501 Morris St, Charleston, WV 25301
- Phone
- (304) 388-5432
- Enumerated
- May 4, 2022
- Record last updated
- May 27, 2026
- Medicaid ID
- 1497490304 WV
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 754 in West Virginia → Look up another NPI →
Also registered at 501 Morris St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kayla Adams, NPFamily Nurse Practitioner1366026965
- Hunter Adkins, CRNACertified Registered Nurse Anesthetist1700677523
- Talal Al Khawlani, MBBSHospitalist Physician1598290579
- Amy Alford, PRSS 23 9178Peer Specialist1265249494
- Emmanuel AmoresPhysical Therapist1083491427
- Julie Atkins, PHARM.D.Pharmacist1124099221
Verify Thomas William Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWest Virginia Board of Medicine
Search for license 4950Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
75 Medicare Part D claims for 33 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of 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.
Thomas William Knowles among 754 internal medicine physician records in West Virginia
Thomas William Knowles, DO is one of 754 internal medicine physician records with a practice address in West Virginia. 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 93% of them.
- NPI issued2022 · 93% of these records are older, 3% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2026 · 43% 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 West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 internal medicine physician records list a practice address in Charleston
They are 107 of the 8,807 NPPES records with a practice address in Charleston, and 754 internal medicine physician records in West Virginia.
All 754 in West Virginia → Every provider in Charleston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nancy Chandler, MSN, FNP, RNCharleston, WV 253011902137177
- Sembua Danieli, MDCharleston, WV 253011497789150
- Robert HalbritterCharleston, WV 253011326508862
- Bradley Henry, M.D.Charleston, WV 253011679573786
- William Jeffrey, MDCharleston, WV 253011285620385
- Jack Kinder, M.D.Charleston, WV 253011831199959
- Yaling Liu, MDCharleston, WV 253011417305509
- Perathu Kannu Rakesh Manivannan, MDCharleston, WV 253011912468513
Common questions
What is Thomas William Knowles, DO's NPI number?
Thomas William Knowles, DO's National Provider Identifier (NPI) is 1497490304, issued on May 4, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Thomas William Knowles, DO located?
The NPPES record lists a practice address at 501 Morris St, Charleston, WV, 25301. Phone: (304) 388-5432. Providers update this record themselves, so call before visiting.
How can I verify Thomas William Knowles, DO's license?
NPPES lists West Virginia license number 4950, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas William Knowles, DO prescribe under Medicare Part D?
In 2024, Thomas William Knowles, DO had 75 Medicare Part D claims for 33 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.