Charles Thomas Alexander Semelka, MD
Geriatric Medicine (Internal Medicine) Physician · Winston Salem, NC
Charles Thomas Alexander Semelka, MD is a geriatric medicine (internal medicine) physician with a practice address in Winston Salem, North Carolina, and NPI 1992238828, issued on Apr 7, 2017. Check the license (North Carolina 2021-02345, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Charles Thomas Alexander Semelka
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 2021-02345 NC
Self-reported in NPPES; status is on the state search - Practice location
- Medical Center Blvd, Winston Salem, NC 27157
- Phone
- (336) 713-8250
- Enumerated
- Apr 7, 2017
- Record last updated
- Jul 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (336) 713-8588
- Medicare enrollment
- Enrolled (PECOS I20210804000674); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 157 in North Carolina → Look up another NPI →
Also registered at Medical Center Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rachel AbrahamStudent in an Organized Health Care Education/Training Program1790451987
- Jon Abramson, MDPediatric Infectious Diseases Physician1033194691
Verify Charles Thomas Alexander Semelka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2021-02345Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
2,243 Medicare Part D claims for 162 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Levothyroxine Sodium130 claims
- Amlodipine Besylate110 claims
- Losartan Potassium94 claims
- Atorvastatin Calcium75 claims
- Eliquis71 claims
- Omeprazole65 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
- Wake Forest University Health SciencesWinston Salem, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Thomas Alexander Semelka among 157 geriatric medicine (internal medicine) physician records in North Carolina
Charles Thomas Alexander Semelka, MD is one of 157 geriatric medicine (internal medicine) physician records with a practice address in North Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 86% of them.
- NPI issued2017 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2006 among the 97 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in North Carolina
There are 157 geriatric medicine (internal medicine) physician records in North Carolina.
All 157 in North Carolina → Every provider in Winston Salem → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Hal Atkinson, MDWinston Salem, NC 271571053397539
- Kathryn Callahan, M.D.Winston Salem, NC 271571346396694
- Holly Coward, M.D.Winston Salem, NC 271571306891007
- Jennifer Gabbard, M.D.Winston Salem, NC 271571730319583
- Carl Grey, MDWinston Salem, NC 271571558639575
- Catherine Jones, MDWinston Salem, NC 271571427044973
- Mary Lyles, MDWinston Salem, NC 271571861477804
- Jamehl Shegog, MDWinston Salem, NC 271571750366795
Common questions
What is Charles Thomas Alexander Semelka, MD's NPI number?
Charles Thomas Alexander Semelka, MD's National Provider Identifier (NPI) is 1992238828, issued on Apr 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Charles Thomas Alexander Semelka, MD located?
The NPPES record lists a practice address at Medical Center Blvd, Winston Salem, NC, 27157. Phone: (336) 713-8250. Providers update this record themselves, so call before visiting.
How can I verify Charles Thomas Alexander Semelka, MD's license?
NPPES lists North Carolina license number 2021-02345, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles Thomas Alexander Semelka, MD prescribe under Medicare Part D?
In 2024, Charles Thomas Alexander Semelka, MD had 2,243 Medicare Part D claims for 162 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.