NPPES file of Aug 9, 2026

Vascular & Interventional Radiology Physician in Delaware

16 NPPES records list vascular & interventional radiology physician with a practice address in Delaware, 1.6 per 100,000 residents, the 17th highest rate of 51. Newark and Dover have the most; each record links to the provider's NPI and the Delaware license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0204X · method

Newark has the most, 11

Vascular & Interventional Radiology Physician records in Delaware

  1. Demetrios Agriantonis, MDNewark, DE 197181063577005
  2. Michael AmygdalosDover, DE 199011043308042
  3. Anurag Chahal, M.D.New Castle, DE 197201497241756
  4. Mark Garcia, MDWilmington, DE 198051942260088
  5. Assaf Graif, MDNewark, DE 197181598051781
  6. Christopher Grilli, D.O.Newark, DE 197181134395445
  7. William Hartz, M.D.Newark, DE 197131194721803
  8. Abhishek Kumar, M.D.Newark, DE 197021427463058
  9. Daniel Leung, M.D.Newark, DE 197181740375690
  10. Edel Mendoza, M.D.Wilmington, DE 198051740677053
  11. Xavier Mohammed, MDNewark, DE 197181366974073
  12. Timothy Niesen, M.D.Newark, DE 197181780974105
  13. Uchenna Nwosu, M.D.Newark, DE 197181588921829
  14. Helen Paik, M.D.Newark, DE 197181851730360
  15. Henry Szeto, DONewark, DE 197181871055517
  16. David Xu, M.D.Dover, DE 199011790179927

Source: CMS NPPES, primary taxonomy 2085R0204X: records by practice city and the list of records, file of Aug 9, 2026.

Delaware ranks 17 of 51 per resident

  1. Florida1.6
  2. Washington1.6
  3. Connecticut1.6
  4. Delaware1.6
  5. California1.5
  6. Maryland1.5
  7. 50 states and D.C.1.4

Source: CMS NPPES, primary taxonomy 2085R0204X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

100.0% of these records appear in a Medicare file, against 89.2% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Delaware100.0%
  2. United States89.2%

Vascular & Interventional Radiology Physician records in Delaware, measured

  • In a Medicare file16 of 16 · 100.0% here, 89.2% nationally
  • In the CMS Doctors and Clinicians file16 · 100.0% here, 83.0% nationally
  • Not updated in five years or more3 · 18.8% here, 37.5% nationally
  • Median graduation year2011 · the 16 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0204X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

16 NPPES records list vascular & interventional radiology physician (2085R0204X) as their primary taxonomy with a practice address in Delaware: 1.6 per 100,000 residents against 1.4 nationally (50 states and D.C.). Newark has 11 of them (69%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Maine16
  2. New Mexico17
  3. West Virginia18
  4. Hawaii19

States with a similar rate per 100,000

  1. California1.5
  2. Maryland1.5
  3. Missouri1.5
  4. Connecticut1.6

The largest states

  1. California599
  2. Florida368
  3. New York357
  4. Texas324
  5. Pennsylvania244

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.