DR. AARON W CALHOUN (MD) – Pediatric Critical Care Medicine Physician, NPI 1558472894

DR. AARON W CALHOUN (MD) is a healthcare provider. based in Chicago, Illinois. specializing in CRITICAL CARE (INTENSIVISTS), PEDIATRIC MEDICINE. They hold the professional credentials MD. They hold a License No. 41278 (KY). The NPI Number for DR. AARON W CALHOUN (MD) is 1558472894

Main info

Male
25 Years Of Experience
Accepts Medicare Assignment
Name
DR. AARON W CALHOUN (MD)
NPI
1558472894
Phone
(502) 272-5135
Address
PO BOX 776879
Enumeration Date
31 August 2006
Last Update Date
13 October 2020

Doctor Profile

Medical School Name
JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
5025591670
Graduation Year
2001 (25 years ago)
PAC ID
8022193309
Group Practice PAC ID
3779917596
Professional Enrollment ID
I20080311000407
Address ID
KY402021874LO601XXSTXX401

Contacts

Secure Messaging
acalhoun46248@direct.nortonhealthcare.org
FHIR Endpoint
https://epicsoap.nortonhealthcare.org/FHIRPRD/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience72
Completeness85
Years active:19State licenses:1Other namesUpdated within 12 months

252 CRITICAL CARE (INTENSIVISTS) in KY

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Provider Addresses for DR. AARON W CALHOUN (MD)

  • Music Box Theatre, 3733, North Southport Avenue, Wrigleyville, Lake View, Lakeview, Chicago, Lake View Township, Cook County, Illinois, 60613, United States

    CHICAGO, IL 606776879

    Phone: (502) 272-5135

    Fax: (502) 272-5339

    Type: Mailing

  • Norton Children's Hospital, 231, East Chestnut Street, Louisville, Jefferson County, Kentucky, 40202, United States

    LOUISVILLE, KY 402021821

    Phone: (502) 629-6000

    Fax: (502) 629-5865

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2008-03-11

PECOS data refreshed: 2026-06-15

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20080311000407IPediatric MedicineKYTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60677)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3779917596View full group profile
NameSpecialtyState
-IL
-KY
Emergency Medicine, Pediatric MedicineIL
Emergency Medicine, Pediatric MedicineIL
-KY
-KY
O B S T E T R I C S/ G Y N E C O L O G YKY
Clinical PsychologistGA
O B S T E T R I C S/ G Y N E C O L O G YNE
Anesthesiology, Pediatric MedicineUT

Reviews

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Frequently asked questions

How do payers reference DR. AARON W CALHOUN (MD)?
For DR. AARON W CALHOUN (MD), use NPI 1558472894 as the unique 10-digit identifier.
Is DR. AARON W CALHOUN (MD) shown as active in public data?
Registry records indicate DR. AARON W CALHOUN (MD) maintains an active NPI.
What kind of doctor is DR. AARON W CALHOUN (MD)?
DR. AARON W CALHOUN (MD) is associated with Pediatric Critical Care Medicine Physician in the directory — Clinical services aligned with this taxonomy classification.
Is DR. AARON W CALHOUN (MD) located near Chicago?
DR. AARON W CALHOUN (MD) currently maps to Chicago, Illinois in this extract.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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