DR. AARON L. JANOS M.D.
NPI 1003819996
Radiology - Diagnostic Radiology in Little Rock, AR

Active since May 24, 2005PECOS EnrolledAccepts Medicare Assignment
500 SOUTH UNIVERSITY AVENUE, SUITE 101, LITTLE ROCK, AR 72205(501) 664-3914(501) 664-5246 Get Directions Write a Review

NPPES record last updated: November 19, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Aaron L. Janos M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. AARON L. JANOS M.D. (NPI 1003819996) is an individual diagnostic radiology provider in Little Rock, Arkansas, licensed in Arkansas (E-2293) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Arkansas College Of Medicine (1995).

NPPES Registry Identity

NPI1003819996
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. AARON L. JANOSCredential: M.D.
Location Address500 SOUTH UNIVERSITY AVENUE, SUITE 101Little Rock, AR 72205-5324
Mailing Address500 South University Avenue, Suite 600Little Rock, AR 72205-5324 · (501) 664-3914 · Fax (501) 664-5246
Fax(501) 664-5246
Sole ProprietorNo
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 1995
Enumeration DateMay 24, 2005
Last NPPES UpdateNovember 19, 2013
✔ NPI 1003819996 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in AR · E-2293
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
500 SOUTH UNIVERSITY AVENUE, Little Rock, AR 72205

Other Identifiers 3

Medicaid140287001AR
Medicare PIN5L516AR
Medicare UPINH19738AR

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Aaron L. Janos M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3577578103
PECOS Enrollment IDI20060217000341
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Aaron Janos reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Diagnostic Radiology
500 S UNIVERSITY AVE, SUITE 101
Little Rock, AR 72205
  • Reassigned Medicare billing, Arkansas enrollment
  • 41 clinicians in this Medicare group
Family Medicine
2 ST. VINCENT CIRCLE
Little Rock, AR 72205
  • Reassigned Medicare billing, Arkansas enrollment
  • 288 clinicians in this Medicare group
Specialist
1 MERCY LN, SUITE 201
Hot Springs, AR 71913
  • Reassigned Medicare billing, Arkansas enrollment
  • 184 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 92

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
1,546 services1,185 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
302 services292 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
257 services253 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
256 services254 patients
Ct scan of abdomen and pelvis without contrast 74176
A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.
165 services164 patients
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152
This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.
134 services128 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 72205 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$79.72 typical visit price
range $51.36 – $157.74
Typical copayment $19.93 (range $12.84 – $39.43)
Most-billed visit code 99203
Established Patient
$64.56 typical visit price
range $16.16 – $128.77
Typical copayment $16.14 (range $4.04 – $32.19)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Obstetrics & Gynecology (Gynecology)
500 SOUTH UNIVERSITY AVENUE, SUITE 709
LITTLE ROCK, AR 72205
Dermatology
500 SOUTH UNIVERSITY AVENUE, SUITE 704
LITTLE ROCK, AR 72205

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Aaron Janos's NPI number?

The NPI number for Aaron Janos is 1003819996. It was assigned to this individual provider in the NPPES registry on May 24, 2005.

Where is Aaron Janos located?

Aaron Janos practices at 500 South University Avenue Suite 101, Little Rock, AR 72205. The listed phone number is (501) 664-3914.

What is Aaron Janos's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Aaron Janos enrolled in Medicare?

Yes. Aaron Janos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Aaron Janos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Janos reassigns Medicare benefits to 3 organizations: Radiology Associates PA (Little Rock, AR), St. Vincent Medical Group (Little Rock, AR) and Chi St. Vincent Medical Group Hot Springs (Hot Springs, AR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Aaron Janos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Janos accept?

Health plans from Health Advantage and Octave list Aaron Janos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Aaron Janos was last updated on November 19, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.