Registry data as of Aug 27, 2026

Khanh Nguyen, MD

Radiation Oncology Physician · Dover, DE

Khanh Nguyen, MD is a radiation oncology physician with a practice address in Dover, Delaware, and NPI 1326144841, issued on Sep 15, 2006. Check the license (Delaware C1-0010053, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1326144841
Name
Khanh Nguyen
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
C1-0010053 DE
A96168 CA
25MA08173600 NJ
MD421400 PA
Self-reported in NPPES; status is on the state search
Practice location
640 S State St FL 1, Dover, DE 19901
Phone
(302) 674-4401
Enumerated
Sep 15, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 640 S State St FL 1

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

  1. Mohamad Ghraowi, MDHematology (Internal Medicine) Physician1942201439
  2. John Lahaniatis, M.D.Radiation Oncology Physician1326023102
  3. Tony Lee, MDRadiation Oncology Physician1588665178
  4. David Suh, M.D.Radiation Oncology Physician1396768255

Verify Khanh Nguyen 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 C1-0010053
    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.

79% fewer Medicare Part D claims than the average radiation oncology physician in 2024

29 Medicare Part D claims for 19 beneficiaries, against an average of 135 among the 4,225 providers of this specialty who prescribed in Part D.

  1. Khanh Nguyen29
  2. Specialty average135

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: $90.57

2 payments, mostly food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 2,851 providers of this specialty with any payment received $1,903.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Khanh Nguyen$90.57
  2. Specialty average$1,903.20

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Radiation Oncology Physician providers in Delaware

There are 19 radiation oncology physician records in Delaware.

Other radiation oncology physician records in Delaware

  1. Monica Chelius, MDNewark, DE1780203463
  2. Lana De Souza Lawrence, M.D.Newark, DE1225296668
  3. Viroon Donavanik, M.D.Newark, DE1215979927
  4. Jennifer Hung, M.D.Rehoboth Beach, DE1720203235
  5. Christopher Koprowski, M.D.Newark, DE1679517932
  6. John Lahaniatis, M.D.Dover, DE1326023102
  7. Tony Lee, MDDover, DE1588665178
  8. Adam Raben, M.D.Newark, DE1306888961
  9. Lindsay Romak, M.D.Newark, DE1437479292
  10. Sunjay Shah, M.D.Newark, DE1538103551

Common questions

What is Khanh Nguyen, MD's NPI number?

Khanh Nguyen, MD's National Provider Identifier (NPI) is 1326144841, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Khanh Nguyen, MD located?

The NPPES record lists a practice address at 640 S State St FL 1, Dover, DE, 19901. Phone: (302) 674-4401. Providers update this record themselves, so call before visiting.

How can I verify Khanh Nguyen, MD's license?

NPPES lists Delaware license number C1-0010053, 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.

How much does Khanh Nguyen, MD prescribe under Medicare Part D?

In 2024, Khanh Nguyen, MD had 29 Medicare Part D claims for 19 beneficiaries; the average among radiation oncology physician prescribers was 135. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.