NPPES file of Aug 9, 2026

Aaron W. Calhoun, MD

Pediatric Critical Care Medicine Physician · Louisville, KY

Aaron W. Calhoun, MD is a pediatric critical care medicine physician with a practice address in Louisville, Kentucky, and NPI 1558472894, issued on Aug 31, 2006. Check the license (Kentucky 41278, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558472894
Name
Aaron W. Calhoun
Credential
MD
Primary taxonomy
Pediatric Critical Care Medicine Physician 2080P0203X
License number
41278 KY
Self-reported in NPPES; status is on the state search
Practice location
231 E Chestnut Street, Louisville, KY 40202
Phone
(502) 629-6000
Enumerated
Aug 31, 2006
Record last updated
Oct 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(502) 629-5865
Medicaid IDs
7100026540 KY
200899020 IN
Medicare enrollment
Enrolled (PECOS I20080311000407); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 2001
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 231 E Chestnut Street

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

  1. Jennifer Linville, APRNFamily Nurse Practitioner1407285141

Verify Aaron W. Calhoun 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 41278
    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

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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).

Bills Medicare through one group practice

  1. Norton Childrens Medical Group LLCLouisville, KY

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

Aaron W. Calhoun among 32 pediatric critical care medicine physician records in Kentucky

Aaron W. Calhoun, MD is one of 32 pediatric critical care medicine physician records with a practice address in Kentucky. 75% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 66% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2001 · median 2004 among the 18 with a school on file
  • Record last updated2020 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0203X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Critical Care Medicine Physician providers in Kentucky

There are 32 pediatric critical care medicine physician records in Kentucky.

The 8 pediatric critical care medicine physician records with the nearest ZIP codes

  1. John Berkenbosch, MDLouisville, KY 402021275517179
  2. Mark McDonald, MDLouisville, KY 402021902876584
  3. Vicki Montgomery, MDLouisville, KY 402021033193446
  4. Karen Orman, MDLouisville, KY 402021952381311
  5. Erin Owen, M.D.Louisville, KY 402021538207105
  6. Eleanor Peterson, M.D.Louisville, KY 402021528285350
  7. Melissa Porter, M.D.Louisville, KY 402021558402339
  8. Katherine Potter, MDLouisville, KY 402021700811098

Common questions

What is Aaron W. Calhoun, MD's NPI number?

Aaron W. Calhoun, MD's National Provider Identifier (NPI) is 1558472894, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Aaron W. Calhoun, MD located?

The NPPES record lists a practice address at 231 E Chestnut Street, Louisville, KY, 40202. Phone: (502) 629-6000. Providers update this record themselves, so call before visiting.

How can I verify Aaron W. Calhoun, MD's license?

NPPES lists Kentucky license number 41278, 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.

What is Aaron W. Calhoun, MD'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.