NPPES file of Aug 9, 2026

Clinton Wayne Simpson, M.D.

Emergency Medicine Physician · Evansville, IN

Clinton Wayne Simpson, M.D. is an emergency medicine physician with a practice address in Evansville, Indiana, and NPI 1629367420, issued on Apr 1, 2011. Check the license (Indiana 01079847A, as entered in NPPES) on the Medical Licensing Board of Indiana; 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
1629367420
Name
Clinton Wayne Simpson
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
01079847A IN
Self-reported in NPPES; status is on the state search
Practice location
600 Mary Street, Evansville, IN 47747
Phone
(812) 450-3405
Enumerated
Apr 1, 2011
Record last updated
Oct 4, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(812) 450-3099
Medicaid ID
7100303240 KY
Medicare enrollment
Enrolled (PECOS I20180910002212); accepts Medicare assignment
Medical or professional school
Southern Illinois University School Of Medicine, 2011
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 600 Mary Street

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

  1. Corie Aiken, FNPNurse Practitioner1326280868
  2. James Alsop, D.O.Hospitalist Physician1942683263
  3. Samantha Anderson, CRNACertified Registered Nurse Anesthetist1093250086
  4. Jennifer Arnoldi, PHARMDPharmacist1083813562
  5. Gabriel Ballinger, CRNACertified Registered Nurse Anesthetist1689105462
  6. Luke Barr, M.D.Neurology Physician1942620026

Verify Clinton Wayne Simpson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01079847A
    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 Indiana 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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8% more Medicare Part D claims than the average emergency medicine physician in 2024

245 Medicare Part D claims for 182 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 41 claims were for opioids.

  1. Clinton Simpson245
  2. Specialty average226

Most prescribed

  1. Cephalexin25 claims
  2. Prednisone25 claims
  3. Cefdinir23 claims
  4. Hydrocodone-Acetaminophen23 claims
  5. Amoxicillin-Clavulanate Potass20 claims
  6. Doxycycline Hyclate19 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): 79.5 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. Qualityout of 100 · 30% of the final score78.2
  2. Costout of 100 · 30%50.9
  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: $39.31

2 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Clinton Simpson$39.31
  2. Specialty average$953.79

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. Deaconess Hospital, Inc.Evansville, IN

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

Clinton Wayne Simpson among 1,293 emergency medicine physician records in Indiana

Clinton Wayne Simpson, M.D. is one of 1,293 emergency medicine physician records with a practice address in Indiana. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 61% of them.

  • NPI issued2011 · 61% of these records are older, 37% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2011 · median 2012 among the 814 with a school on file
  • Record last updated2018 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Indiana

There are 1,293 emergency medicine physician records in Indiana.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. John Burnley, MDEvansville, IN 477471295839835
  2. Christopher Cannon, M.D.Evansville, IN 477471730105875
  3. Brian Carmack, MDEvansville, IN 477471992749832
  4. Eric Cure, MDEvansville, IN 477471629172226
  5. Michael Davis, M.D.Evansville, IN 477471104832658
  6. Laura Diaz Del Castillo, MDEvansville, IN 477471194834440
  7. James Fouts, MDEvansville, IN 477471215031851
  8. Barry Gest, MDEvansville, IN 477471952388183

Common questions

What is Clinton Wayne Simpson, M.D.'s NPI number?

Clinton Wayne Simpson, M.D.'s National Provider Identifier (NPI) is 1629367420, issued on Apr 1, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Clinton Wayne Simpson, M.D. located?

The NPPES record lists a practice address at 600 Mary Street, Evansville, IN, 47747. Phone: (812) 450-3405. Providers update this record themselves, so call before visiting.

How can I verify Clinton Wayne Simpson, M.D.'s license?

NPPES lists Indiana license number 01079847A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Clinton Wayne Simpson, M.D. prescribe under Medicare Part D?

In 2024, Clinton Wayne Simpson, M.D. had 245 Medicare Part D claims for 182 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Clinton Wayne Simpson, M.D.'s MIPS final score?

The 2023 MIPS final score is 79.5 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.