Katherine J. Clark, MD
Internal Medicine Physician · Thomasville, NC
Katherine J. Clark, MD is an internal medicine physician with a practice address in Thomasville, North Carolina, and NPI 1205816394, issued on Jan 17, 2006. Check the license (North Carolina 9500536, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Katherine J. Clark
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 9500536 NC
Self-reported in NPPES; status is on the state search - Practice location
- 309 Pineywood RD, Thomasville, NC 27360
- Phone
- (336) 475-8121
- Enumerated
- Jan 17, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (336) 475-5377
- Medicaid ID
- 7922700 NC
- Medicare enrollment
- Enrolled (PECOS I20031231000389); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1992
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 309 Pineywood RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aysha BaigInternal Medicine Physician1306474168
- Ashley Clark, AGPC-NPNurse Practitioner1063295293
- Tiffany Floyd, LGSWClinical Social Worker1730594144
- Brandy Fowler, DNPGerontology Nurse Practitioner1598241721
- Nikita HarringtonFamily Nurse Practitioner1336594241
- Sirajuddin Ismail, MDPsychiatry Physician1902822901
Verify Katherine J. Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 9500536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,148 Medicare Part D claims for 960 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 74 claims were for opioids.
Most prescribed
- Atorvastatin Calcium731 claims
- Levothyroxine Sodium709 claims
- Rosuvastatin Calcium550 claims
- Omeprazole453 claims
- Amlodipine Besylate446 claims
- Escitalopram Oxalate382 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
- Forsyth Memorial Hospital IncThomasville, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine J. Clark among 4,056 internal medicine physician records in North Carolina
Katherine J. Clark, MD is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1992 · median 2004 among the 2,706 with a school on file
- Record last updated2023 · 48% 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 internal medicine physician records list a practice address in Thomasville
They are 11 of the 423 NPPES records with a practice address in Thomasville, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Thomasville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Harry Alexander, M.D.Thomasville, NC 273601316916653
- Aysha BaigThomasville, NC 273601306474168
- Sara Furr, MDThomasville, NC 273601548288947
- Terrance Johns, MDThomasville, NC 273601639141674
- William Keates, M.D.Thomasville, NC 273601750579942
- Karolyn Kruger, MDThomasville, NC 273601952373839
- Timothy Mathews, MDThomasville, NC 273601134514607
- John McKinney, DOThomasville, NC 273601780602185
Common questions
What is Katherine J. Clark, MD's NPI number?
Katherine J. Clark, MD's National Provider Identifier (NPI) is 1205816394, issued on Jan 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine J. Clark, MD located?
The NPPES record lists a practice address at 309 Pineywood RD, Thomasville, NC, 27360. Phone: (336) 475-8121. Providers update this record themselves, so call before visiting.
How can I verify Katherine J. Clark, MD's license?
NPPES lists North Carolina license number 9500536, 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 Katherine J. Clark, MD prescribe under Medicare Part D?
In 2024, Katherine J. Clark, MD had 11,148 Medicare Part D claims for 960 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.