Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. AARON WITTENBERG M.D.
NPI 1164486338
Radiology - Diagnostic Radiology in Mchenry, IL

Active since April 14, 2006PECOS EnrolledAccepts Medicare Assignment
4201 W MEDICAL CENTER DR, MCHENRY, IL 60050(815) 334-5566(815) 759-4008 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 7, 2026, Nov 9, 2023 (2 updates tracked since 2023).

About Dr. Aaron Wittenberg M.d. NPPES

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

DR. AARON WITTENBERG M.D. (NPI 1164486338) is an individual diagnostic radiology provider in Mchenry, Illinois, licensed in Illinois (036157692) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Baptist Health Corbin, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1164486338
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. AARON WITTENBERGCredential: M.D.
Location Address4201 W MEDICAL CENTER DRMchenry, IL 60050-8409
Mailing Address4201 W Medical Center DrMchenry, IL 60050-8409 · (815) 334-5566 · Fax (815) 759-4008
Fax(815) 759-4008
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateApril 14, 2006
Last NPPES UpdateOctober 7, 20262 updates tracked since enumeration
NPPES CertifiedOctober 7, 2026
✔ NPI 1164486338 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in IL · 036157692✔ Licensed in AZ · 34961
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedRadiology · Vascular & Interventional RadiologyTaxonomy 2085R0204X · License 34961 (AZ)
4201 W MEDICAL CENTER DR, Mchenry, IL 60050

Secondary Practice Locations 2

Location 119829 N 27th AvePhoenix, AZ 85027-4001 · Phone (623) 879-5720
Location 22902 W Agua Fria Fwy Ste 1000Phoenix, AZ 85027-3969 · Phone (480) 485-7371 · Fax (928) 202-4208

Other Identifiers 3

Medicaid004736AZ
OtherAZ0221810AZ · Bcbsaz
Other1Z7086AZ · Health Net Of Az

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 Wittenberg 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 ID547298036
PECOS Enrollment IDI20060517000056, I20230422000188, I20241111001425
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

9

Medicare enrollment records show Aaron Wittenberg reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
1001 LEAWOOD DR
Frankfort, KY 40601
  • Reassigned Medicare billing, Kentucky enrollment
  • 999 clinicians in this Medicare group
Emergency Medicine
454 MCDOWELL ST
Welch, WV 24801
  • Reassigned Medicare billing, West Virginia enrollment
  • 77 clinicians in this Medicare group
Multi-Specialty
859 E. MELTON DRIVE
Jay, OK 74346
  • Reassigned Medicare billing, Texas enrollment
  • 1,047 clinicians in this Medicare group
Clinic/Center
2900 N MAIN ST
Muskogee, OK 74401
  • Reassigned Medicare billing, Texas enrollment
  • 655 clinicians in this Medicare group
Rural
ARIZONA HIGHWAY 191
Ganado, AZ 86505
  • Reassigned Medicare billing, Arizona enrollment
  • 204 clinicians in this Medicare group
Critical Access
450 S OCOTILLO AVE
Benson, AZ 85602
  • Reassigned Medicare billing, Arizona enrollment
  • 152 clinicians in this Medicare group
Psychiatry
570 W BROWN RD, ADMINISTRATION
Mesa, AZ 85201
  • Reassigned Medicare billing, Arizona enrollment
  • 1,490 clinicians in this Medicare group
Vascular & Interventional Radiology
1400 S DOBSON RD
Mesa, AZ 85202
  • Reassigned Medicare billing, Arizona enrollment
  • 447 clinicians in this Medicare group
Medical Oncology
14200 CELEBRATE LIFE WAY
Goodyear, AZ 85338
  • Reassigned Medicare billing, Arizona enrollment
  • 359 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 29

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.

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.
197 services174 patients
Ct scan of chest with contrast 71260
A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.
176 services153 patients
Ct scan of chest without contrast 71250
A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.
137 services130 patients
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.
122 services105 patients
Review by radiologist of ct guidance for needle placement 77012
This process involves a radiologist examining CT scan images to accurately guide a needle's placement within the body. This technique is often used for biopsies or treatments, ensuring precision and safety.
119 services97 patients
Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
104 services88 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baptist Health Corbin

Acute Care Hospitals · Corbin, KY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180080
LocationOne Trillium WayCorbin, KY 40701 · Whitley County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60050 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$68.64 typical visit price
range $17.16 – $136.56
Typical copayment $17.16 (range $4.29 – $34.14)
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 20

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

Student in an Organized Health Care Education/Training Program
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Surgery (Surgical Critical Care)
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Clinical Medical Laboratory
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Hospitalist
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Internal Medicine
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Internal Medicine
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Anesthesiology
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050
Anesthesiology
4201 W MEDICAL CENTER DR
MCHENRY, IL 60050

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 Wittenberg's NPI number?

The NPI number for Aaron Wittenberg is 1164486338. It was assigned to this individual provider in the NPPES registry on April 14, 2006.

Where is Aaron Wittenberg located?

Aaron Wittenberg practices at 4201 W Medical Center Dr, Mchenry, IL 60050. The listed phone number is (815) 334-5566.

What is Aaron Wittenberg's specialty?

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

Is Aaron Wittenberg enrolled in Medicare?

Yes. Aaron Wittenberg 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 Wittenberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Wittenberg reassigns Medicare benefits to 9 organizations: Baptist Health Medical Group Inc (Frankfort, KY), Appalachian Mountains Medical, LLC (Welch, WV), Cherokee Nation (Jay, OK), Creek Nation Hospital & Clinics (Muskogee, OK), Navajo Health Foundation-Sage Memorial Hospital, Inc. (Ganado, AZ) and 4 more organizations, listed in the Medicare section above. 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 Wittenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Wittenberg accept?

Health plans from Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc. and Priority Health list Aaron Wittenberg 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.

Is Aaron Wittenberg affiliated with any hospitals?

According to CMS data, Aaron Wittenberg is affiliated with Baptist Health Corbin.

When was this NPI record last updated?

The NPPES record for Aaron Wittenberg was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.