Registry data as of Aug 27, 2026

David Chang, M.D. M.S.

Radiation Oncology Physician · Lake Charles, LA

David Chang, M.D. M.S. is a radiation oncology physician with a practice address in Lake Charles, Louisiana, and NPI 1609037837, issued on Jun 20, 2008. Check the license on the Louisiana State Board of Medical Examiners; 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
1609037837
Name
David Chang
Credential
M.D. M.S.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
Practice location
524 Dr Michael Debakey Dr, Lake Charles, LA 70601
Phone
(337) 491-7569
Enumerated
Jun 20, 2008
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 524 Dr Michael Debakey Dr

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

  1. Kunwardeep Singh AroraInternal Medicine Physician1033854112
  2. Megan Bercier, LOTROccupational Therapist1003535436
  3. Brandi Bolden, RNRegistered Nurse1528779626
  4. Kody Daigle, NPFamily Nurse Practitioner1144958232
  5. Mary Disante, RNAdministrator Registered Nurse1548732332
  6. Dylan Duplantis, RNFARegistered Nurse First Assistant1205649266

Verify David Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical ExaminersCheck 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 Louisiana 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.

2.5 times the Medicare Part D claims of the average radiation oncology physician in 2024

342 Medicare Part D claims for 82 beneficiaries, against an average of 135 among the 4,225 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 69 claims were for opioids.

  1. David Chang342
  2. Specialty average135

Most prescribed

  1. Tamsulosin Hcl59 claims
  2. Levothyroxine Sodium32 claims
  3. Hydrocodone-Acetaminophen29 claims
  4. Oxybutynin Chloride28 claims
  5. Oxycodone-Acetaminophen16 claims
  6. Fentanyl15 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: $134.35

2 payments, mostly food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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. David Chang$134.35
  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.

One hospital or facility affiliation

  1. Ochsner Clinic LLCRaceland, LA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Radiation Oncology Physician providers in Louisiana

There are 57 radiation oncology physician records in Louisiana.

Other radiation oncology physician records in Louisiana

  1. Natalie Alphonse Sullivan, M.D.Alexandria, LA1003255761
  2. John Anderson, MDLafayette, LA1124288956
  3. Russell Anderson, MDShreveport, LA1013043009
  4. Roxana Baluna, M.D.Shreveport, LA1700837002
  5. Richard Bermudez, M.D.Covington, LA1811129000
  6. Ross Bland, M.D.Monroe, LA1437442472
  7. Daniel Bourgeois, MDSlidell, LA1043568991
  8. Ashley Brown, M.D.New Orleans, LA1003295551
  9. David Caletri, MDShreveport, LA1730277831
  10. Gregory Cotter, M.D.Baton Rouge, LA1659363067

Common questions

What is David Chang, M.D. M.S.'s NPI number?

David Chang, M.D. M.S.'s National Provider Identifier (NPI) is 1609037837, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.

Where is David Chang, M.D. M.S. located?

The NPPES record lists a practice address at 524 Dr Michael Debakey Dr, Lake Charles, LA, 70601. Phone: (337) 491-7569. Providers update this record themselves, so call before visiting.

How can I verify David Chang, M.D. M.S.'s license?

Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Chang, M.D. M.S. prescribe under Medicare Part D?

In 2024, David Chang, M.D. M.S. had 342 Medicare Part D claims for 82 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.