NPPES file of Aug 9, 2026

Douglas Alan Nelson, M.D.

Medical Oncology Physician · Louisville, KY

Douglas Alan Nelson, M.D. is a medical oncology physician with a practice address in Louisville, Kentucky, and NPI 1497720049, issued on Feb 17, 2006. Check the license (Kentucky 56196, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497720049
Name
Douglas Alan Nelson
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
56196 KY
Self-reported in NPPES; status is on the state search
Practice location
676 S Floyd St Ste 200, Louisville, KY 40202
Phone
(502) 629-4440
Enumerated
Feb 17, 2006
Record last updated
Jul 10, 2026
Fax
(502) 629-4445
Medicaid ID
202787201 (MDACC) TX
Medicare enrollment
Enrolled (PECOS I20211228001590); accepts Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 1996
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 676 S Floyd St Ste 200

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

  1. Elizabeth Archer-Nanda, ARNPClinical Nurse Specialist1083666085
  2. Mallory Besaw-Turner, APRNFamily Nurse Practitioner1649120098
  3. Jane Cornett, MDHospice and Palliative Medicine (Internal Medicine) Physician1457450223
  4. Laura Davis, MSN, APRN, FNP-CFamily Nurse Practitioner1144998212
  5. Joseph Flynn, D.O., MPHMedical Oncology Physician1518939933
  6. Theresa Hardy, LCSWClinical Social Worker1245981471

Verify Douglas Alan Nelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 56196
    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 Kentucky 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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60% more Medicare Part D claims than the average medical oncology physician in 2024

1,127 Medicare Part D claims for 183 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 197 claims were for opioids.

  1. Douglas Nelson1,127
  2. Specialty average703

Most prescribed

  1. Ondansetron Hcl104 claims
  2. Olanzapine69 claims
  3. Imatinib Mesylate56 claims
  4. Eliquis53 claims
  5. Lidocaine-Prilocaine53 claims
  6. Gabapentin52 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,037.60

11 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Douglas Nelson$3,038
  2. Specialty average$11,773

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

Bills Medicare through one group practice

  1. Norton Hospitals, IncScottsburg, IN

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

Douglas Alan Nelson among 59 medical oncology physician records in Kentucky

Douglas Alan Nelson, M.D. is one of 59 medical oncology physician records with a practice address in Kentucky. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.

  • NPI issued2006 · 19% of these records are older, 46% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1996 · median 2001 among the 44 with a school on file
  • Record last updated2026 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Kentucky

There are 59 medical oncology physician records in Kentucky.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Paul Arena, M.D.Louisville, KY 402021558335265
  2. Joseph Flynn, D.O., MPHLouisville, KY 402021518939933
  3. John Hamm, M.D.Louisville, KY 402021023075660
  4. Renato Larocca, M.D.Louisville, KY 402021598738932
  5. Thomas Woodcock, M.D.Louisville, KY 402021912965062
  6. Don Stevens, M.D.Louisville, KY 402071952369621
  7. Vijay Raghavan, MDLouisville, KY 402151316948995
  8. Subhash Sheth, MDLouisville, KY 402151942201652

Common questions

What is Douglas Alan Nelson, M.D.'s NPI number?

Douglas Alan Nelson, M.D.'s National Provider Identifier (NPI) is 1497720049, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Alan Nelson, M.D. located?

The NPPES record lists a practice address at 676 S Floyd St Ste 200, Louisville, KY, 40202. Phone: (502) 629-4440. Providers update this record themselves, so call before visiting.

How can I verify Douglas Alan Nelson, M.D.'s license?

NPPES lists Kentucky license number 56196, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Douglas Alan Nelson, M.D. prescribe under Medicare Part D?

In 2024, Douglas Alan Nelson, M.D. had 1,127 Medicare Part D claims for 183 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Douglas Alan Nelson, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.