NPPES file of Aug 9, 2026

Denis Valentin Kapkov, M.D.

Internal Medicine Physician · Somerville, NJ

Denis Valentin Kapkov, M.D. is an internal medicine physician with a practice address in Somerville, New Jersey, and NPI 1043466022, issued on Aug 11, 2008. Check the license (New Jersey 25MA08891600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043466022
Name
Denis Valentin Kapkov
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
25MA08891600 NJ
049163 CT
MD21760 ME
241725 NY
MT194021 PA
Self-reported in NPPES; status is on the state search
Practice location
110 Rehill Ave, Somerville, NJ 08876
Phone
(908) 685-2200
Enumerated
Aug 11, 2008
Record last updated
Jun 11, 2024
Fax
(732) 923-2272
Medicare enrollment
Enrolled (PECOS I20101101000905); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 110 Rehill Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Grace Abad, MSN RN, ANP-BCNurse Practitioner1710203450
  2. Mahreen AhmadPhysician Assistant1326523127
  3. Marium Ahmed, MDInternal Medicine Physician1760924229
  4. Sadia Ahmed, M.D.Internal Medicine Physician1225223464
  5. Laz Akachi, MDStudent in an Organized Health Care Education/Training Program1336836022
  6. Alla AlasmarPeer Specialist1356220107

Verify Denis Valentin Kapkov in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA08891600
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% fewer Medicare Part D claims than the average internal medicine physician in 2024

137 Medicare Part D claims for 56 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.

  1. Denis Kapkov137
  2. Specialty average3,176

Most prescribed

  1. Metoprolol Succinate12 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 4 group practices

  1. Day Kimball Medical Group IncPutnam, CT
  2. Delphi Hospitalist Services LLCLowville, NY
  3. The Memorial Hospital OF William F And Gertrude F Jones IncWellsville, NY
  4. Westchester Medical Center Advanced Physician Services PCValhalla, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Denis Valentin Kapkov among 4,632 internal medicine physician records in New Jersey

Denis Valentin Kapkov, M.D. is one of 4,632 internal medicine physician records with a practice address in New Jersey. 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 2008, is newer than 59% of them.

  • NPI issued2008 · 59% of these records are older, 36% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2004 · median 2000 among the 3,132 with a school on file
  • Record last updated2024 · 63% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 internal medicine physician records list a practice address in Somerville

They are 12 of the 693 NPPES records with a practice address in Somerville, and 4,632 internal medicine physician records in New Jersey.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ahmed Abdel-Megid, M.D.Somerville, NJ 088761134313745
  2. Sadia Ahmed, M.D.Somerville, NJ 088761225223464
  3. Marium Ahmed, MDSomerville, NJ 088761760924229
  4. Shehzana Ashraf, MDSomerville, NJ 088761497848774
  5. Elizabeth Balint, M.D.Somerville, NJ 088761265520555
  6. David Berkowitz, MDSomerville, NJ 088761134224579
  7. Romeo Caballes, M.DBranchburg, NJ 088761891773610
  8. Camille Green, MDBranchburg, NJ 088761811293921

Common questions

What is Denis Valentin Kapkov, M.D.'s NPI number?

Denis Valentin Kapkov, M.D.'s National Provider Identifier (NPI) is 1043466022, issued on Aug 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Denis Valentin Kapkov, M.D. located?

The NPPES record lists a practice address at 110 Rehill Ave, Somerville, NJ, 08876. Phone: (908) 685-2200. Providers update this record themselves, so call before visiting.

How can I verify Denis Valentin Kapkov, M.D.'s license?

NPPES lists New Jersey license number 25MA08891600, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Denis Valentin Kapkov, M.D. prescribe under Medicare Part D?

In 2024, Denis Valentin Kapkov, M.D. had 137 Medicare Part D claims for 56 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.