NPPES file of Aug 9, 2026

Mark Joseph Cartoski, M.D.

Pediatric Cardiology Physician · Wilmington, DE

Mark Joseph Cartoski, M.D. is a pediatric cardiology physician with a practice address in Wilmington, Delaware, and NPI 1134430986, issued on Jun 27, 2010. Check the license (Delaware C10012706, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1134430986
Name
Mark Joseph Cartoski
Credential
M.D.
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License number
C10012706 DE
Self-reported in NPPES; status is on the state search
Practice location
1600 Rockland RD, Wilmington, DE 19803
Phone
(302) 651-4200
Enumerated
Jun 27, 2010
Record last updated
Jun 10, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(302) 651-5345
Medicaid IDs
1035254600 PA
250468405 DE
Medicare enrollment
Enrolled (PECOS I20180813002320); accepts Medicare assignment
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 1600 Rockland RD

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

  1. Nicole Aaronson, M.D.Pediatric Otolaryngology Physician1285925305
  2. Erioluwa Akhimien, PHARMDPharmacist1295610541
  3. Brad Albertson, M.D.Pediatrics Physician1972983716
  4. Angela Alfano, M.S. CCC-SLPSpeech-Language Pathologist1942480579
  5. Lida Alimorad, D.D.SPediatric Dentistry1013201987
  6. Anthony Alioto, PH.DClinical Child & Adolescent Psychologist1134138662

Verify Mark Joseph Cartoski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C10012706
    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 Delaware 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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Bills Medicare through one group practice

  1. The Nemours FoundationWilmington, DE

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

Mark Joseph Cartoski among 27 pediatric cardiology physician records in Delaware

Mark Joseph Cartoski, M.D. is one of 27 pediatric cardiology physician records with a practice address in Delaware. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.

  • NPI issued2010 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2010 · median 2007 among the 17 with a school on file
  • Record last updated2019 · 85% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Cardiology Physician providers in Delaware

There are 27 pediatric cardiology physician records in Delaware.

The 8 pediatric cardiology physician records with the nearest ZIP codes

  1. Paul Anisman, MDWilmington, DE 198031427149715
  2. Jeanne Baffa, MDWilmington, DE 198031669563938
  3. Bernard Clark, MDWilmington, DE 198031396836656
  4. Aisha Frazier, M.D.Wilmington, DE 198031245377654
  5. Samuel Gidding, MDWilmington, DE 198031124110903
  6. Wolfgang Radtke, MDWilmington, DE 198031841382686
  7. Steven Ritz, MDWilmington, DE 198031205928058
  8. Bradley Robinson, MDWilmington, DE 198031376503714

Common questions

What is Mark Joseph Cartoski, M.D.'s NPI number?

Mark Joseph Cartoski, M.D.'s National Provider Identifier (NPI) is 1134430986, issued on Jun 27, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mark Joseph Cartoski, M.D. located?

The NPPES record lists a practice address at 1600 Rockland RD, Wilmington, DE, 19803. Phone: (302) 651-4200. Providers update this record themselves, so call before visiting.

How can I verify Mark Joseph Cartoski, M.D.'s license?

NPPES lists Delaware license number C10012706, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.