Ewa Antonczyk, MD
Internal Medicine Physician · Clarksville, TN
Ewa Antonczyk, MD is an internal medicine physician with a practice address in Clarksville, Tennessee, and NPI 1891740270, issued on May 23, 2006. Check the license (Tennessee 46834, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ewa Antonczyk
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 46834 TN
ME93992 FL
MD2005-0482 NM
Self-reported in NPPES; status is on the state search - Practice location
- 647 Dunlop LN, Clarksville, TN 37040
- Phone
- (931) 502-3660
- Enumerated
- May 23, 2006
- Record last updated
- Sep 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111004000781); accepts Medicare assignment
- Medical or professional school
- University Of Miami, Lm Miller School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 647 Dunlop LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amy Holloway, APRNFamily Nurse Practitioner1730517749
- Heidi Nussbaumer-Story, N.P.Nurse Practitioner1922044056
- Theodore Ritzer, MDCardiovascular Disease Physician1942291372
Verify Ewa Antonczyk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 46834Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
129 Medicare Part D claims for 40 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin40 claims
- Doxycycline Hyclate34 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.
Industry payments in 2024: $92.87
4 payments; by number, the most common kind was food and beverage; the largest payer was Paratek Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Clarksville Physician Services, LLCClarksville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ewa Antonczyk among 2,596 internal medicine physician records in Tennessee
Ewa Antonczyk, MD is one of 2,596 internal medicine physician records with a practice address in Tennessee. 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 15% of them.
- NPI issued2006 · 15% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2002 · median 2003 among the 1,705 with a school on file
- Record last updated2020 · 56% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Tennessee
There are 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Clarksville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Aaron, MDClarksville, TN 370401629019922
- Joel Bush, MDClarksville, TN 370401255312278
- Tommy Carman, DOClarksville, TN 370401710968250
- Vernon Carrigan, MDClarksville, TN 370401144201161
- David Gullett, M.D.Clarksville, TN 370401568481125
- Deborah Hellums, MDClarksville, TN 370401972549673
- Oba Hollie, M.D.Clarksville, TN 370401013130749
- James Maccarone, D.O.Clarksville, TN 370401861590002
Common questions
What is Ewa Antonczyk, MD's NPI number?
Ewa Antonczyk, MD's National Provider Identifier (NPI) is 1891740270, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ewa Antonczyk, MD located?
The NPPES record lists a practice address at 647 Dunlop LN, Clarksville, TN, 37040. Phone: (931) 502-3660. Providers update this record themselves, so call before visiting.
How can I verify Ewa Antonczyk, MD's license?
NPPES lists Tennessee license number 46834, 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 Ewa Antonczyk, MD prescribe under Medicare Part D?
In 2024, Ewa Antonczyk, MD had 129 Medicare Part D claims for 40 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.