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

DENNIS W PROHASKA D. O.
NPI 1689651010
Radiology - Diagnostic Radiology in Chicago, IL

Q: What is Dennis Prohaska's NPI number?

The NPI number for Dennis Prohaska is 1689651010. It was assigned to this individual provider in the NPPES registry on December 28, 2005.

Q: What is Dennis Prohaska's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Dennis Prohaska was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.

Active since December 28, 2005PECOS EnrolledAccepts Medicare Assignment

78.75/100

CMS Quality Rating

1516 S WABASH AVE, APT 1104, CHICAGO, IL 60605(414) 870-5178 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 29, 2026, Jul 15, 2016 (2 updates tracked since 2016).

On this page

About Dennis W Prohaska D. O. NPPES

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

DENNIS W PROHASKA D. O. (NPI 1689651010) is an individual diagnostic radiology provider in Chicago, Illinois, licensed in Indiana (02004880B) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Riverside Medical Center, and is a graduate of Chicago College Of Osteopathy (2010).

NPPES Registry Identity

NPI1689651010

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDENNIS W PROHASKACredential: D. O.

Location Address1516 S WABASH AVE, APT 1104Chicago, IL 60605-2903

Mailing Address1516 S Wabash Ave, Apt 1104Chicago, IL 60605-2903 · (414) 870-5178

Phone(414) 870-5178

Sole ProprietorNo

Medical School CMSChicago College Of OsteopathyGraduated 2010

Enumeration DateDecember 28, 2005

Last NPPES UpdateSeptember 29, 20262 updates tracked since enumeration

✔ NPI 1689651010 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in IN · 02004880B

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Also ListedEmergency MedicineTaxonomy 207P00000X · License 085-002276 (IL)

Also ListedPhysician AssistantTaxonomy 363A00000X · License 1610-023 (WI), 085-002276 (IL)

1516 S WABASH AVE, Chicago, IL 60605

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Other Identifiers 1

Medicaid41994500WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Anthem Blue Cross and Blue Shield and more.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

Dennis W Prohaska D. O. 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 ID3375526494

PECOS Enrollment IDI20160728002440, I20190822000191, I20250903003562

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

Medicare enrollment records show Dennis Prohaska reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Friedell Clinic, S. C.

7.4 mi

Family Medicine

1625 E 75TH ST
Chicago, IL 60649

Reassigned Medicare billing, Illinois enrollment
49 clinicians in this Medicare group

NPI 1306854021 (773) 947-2828

Advanced Pain & Anesthesia Consultants, PC

35 mi

Pain Medicine

11456 BROADWAY
Crown Point, IN 46307

Reassigned Medicare billing, Indiana enrollment
Medicare enrollment name: Advance Pain & Anesthesia Consultants, PC
24 clinicians in this Medicare group

NPI 1457387078 (219) 488-0176

Centers For Pain Control, Inc

51 mi

Pain Medicine

204 LEGACY PLZ W
La Porte, IN 46350

Reassigned Medicare billing, Indiana enrollment
39 clinicians in this Medicare group

NPI 1790920452 (219) 326-7246

Riverside Health System

52 mi

General Practice

1905 W COURT ST
Kankakee, IL 60901

Reassigned Medicare billing, Illinois enrollment
381 clinicians in this Medicare group

NPI 1417061193 (815) 935-7526

Swedishamerican Hospital

56 mi

Psychiatry

920 W PRAIRIE DR, UNIT F
Sycamore, IL 60178

Reassigned Medicare billing, Illinois enrollment
474 clinicians in this Medicare group

NPI 1528234242 (815) 889-0339

Premier Radiology Wisconsin, LLC

61 mi

Diagnostic Radiology

10180 WASHINGTON AVE STE 101
Mount Pleasant, WI 53177

Reassigned Medicare billing, Wisconsin enrollment
237 clinicians in this Medicare group

NPI 1952951154 (414) 973-7830

Saint Joseph Regional Medical Center, Inc.

76 mi

Pulmonary Disease

2349 LAKE AVE STE 99
Plymouth, IN 46563

Reassigned Medicare billing, Indiana enrollment
205 clinicians in this Medicare group

NPI 1225082878 (574) 948-5340

Imaging Associates Of Indiana, PC

154 mi

Diagnostic Radiology

2001 W 86TH ST
Indianapolis, IN 46260

Reassigned Medicare billing, Illinois, Indiana and Wisconsin enrollments
83 clinicians in this Medicare group

NPI 1699072611 (219) 767-6320

Radiology Associates Of Appleton, S.C.

172 mi

Diagnostic Radiology

2500 E CAPITOL DR
Appleton, WI 54911

Reassigned Medicare billing, Illinois and Wisconsin enrollments
Medicare enrollment name: Radiology Associates Of Appleton Sc
Also billed through NPI 1407941909 (Wisconsin)
14 clinicians in this Medicare group

NPI 1841229093 (833) 639-0141

Medical X-Ray Consultants, Ltd

476 mi

Vascular & Interventional Radiology

111 17TH AVE E
Alexandria, MN 56308

Reassigned Medicare billing, Illinois and Wisconsin enrollments
15 clinicians in this Medicare group

NPI 1386601383 (715) 295-9431

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 39

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.

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

246 services246 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.

192 services178 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.

83 services82 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

44 services44 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

43 services43 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

40 services40 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

39 services38 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

37 services36 patients

Drainage of fluid from abdominal cavity using imaging guidance 49083

This procedure involves removing excess fluid from your abdominal cavity, which can relieve discomfort. A specialist uses imaging technology to guide a thin needle into the right spot. The fluid is then drained out safely.

36 services23 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.

35 services35 patients

Aspiration of fluid from chest cavity using imaging guidance 32555

This procedure, known as a thoracentesis, involves removing fluid from the space between the lungs and chest wall, called the pleural space. It's performed under imaging guidance to ensure precision. It can help diagnose conditions or relieve symptoms like shortness of breath.

31 services30 patients

Ct scan of blood vessels and grafts of heart with contrast 75574

A CT scan of the heart's blood vessels and grafts with contrast is a diagnostic test. A special dye (contrast) is injected into your veins, which helps create clear images of your heart's vessels and grafts. This helps doctors detect blockages or other abnormalities.

31 services31 patients

Ct scan of abdominal aorta and both leg arteries with contrast 75635

A CT scan of the abdominal aorta and both leg arteries with contrast is a medical imaging procedure. A special dye is injected to make your blood vessels visible on the scan. This helps to check for any blockages or abnormalities in these areas.

28 services27 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

26 services26 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

24 services24 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.

23 services23 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.

21 services21 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.

21 services21 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

21 services21 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.

21 services21 patients

Fluoroscopic guidance for insertion or removal of central vein access device 77001

Fluoroscopic guidance for central vein access device insertion or removal is a procedure where a special X-ray, called a fluoroscope, is used to help accurately place or remove a device in a central vein. This device aids in delivering medications or collecting blood samples.

21 services19 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.

18 services18 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

18 services18 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.

18 services18 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

17 services17 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

16 services16 patients

Biopsy and aspiration of bone marrow sample for diagnosis 38222

A bone marrow biopsy and aspiration is a procedure where a small amount of bone marrow is removed for testing. It involves inserting a needle into a bone, typically the hip, to collect a sample. It can help diagnose various diseases and monitor treatment effectiveness.

15 services15 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

15 services12 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.

15 services15 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

14 services14 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

13 services13 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

13 services13 patients

Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556

This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.

12 services12 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

12 services12 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

12 services12 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

12 services11 patients

Fine needle aspiration biopsy using ultrasound guidance, first growth 10005

Fine needle aspiration biopsy with ultrasound guidance is a procedure where a thin needle is inserted into a growth to extract a small sample. Ultrasound helps accurately locate the growth. This sample is then analyzed to determine the nature of the growth.

11 services11 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

11 services11 patients

Fluoroscopic guidance for needle placement 77002

Fluoroscopic guidance for needle placement is a medical procedure that uses a special X-ray technology to help accurately place a needle in the body. It's often used in biopsies, injections or other treatments to ensure precision and safety.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Riverside Medical Center

Acute Care Hospitals · Kankakee, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140186

Location350 N Wall StKankakee, IL 60901 · Kankakee County

Emergency services Birthing friendly

Franciscan Health Michigan City

Acute Care Hospitals · Michigan City, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150015

Location3500 Franciscan WayMichigan City, IN 46360 · La Porte County

Emergency services Birthing friendly

Franciscan Health Dyer

Acute Care Hospitals · Dyer, IN

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150090

Location24 Joliet StDyer, IN 46311 · Lake County

Emergency services Birthing friendly

Franciscan Health Crown Point

Acute Care Hospitals · Crown Point, IN

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150126

Location12750 Saint Francis DriveCrown Point, IN 46307 · Lake County

Emergency services Birthing friendly

Franciscan Health Munster

Acute Care Hospitals · Munster, IN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150165

Location701 Superior AveMunster, IN 46321 · Lake County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60605 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

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

Improvement Activities

Other Providers at the Same Location NPPES

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

LAURA MARY KEARNEY

Counselor (Professional)

1516 S WABASH AVE, UNIT 406
CHICAGO, IL 60605

Cook County (312) 342-1853

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 Dennis Prohaska's NPI number?

The NPI number for Dennis Prohaska is 1689651010. It was assigned to this individual provider in the NPPES registry on December 28, 2005.

Where is Dennis Prohaska located?

Dennis Prohaska practices at 1516 S Wabash Ave Apt 1104, Chicago, IL 60605. The listed phone number is (414) 870-5178.

What is Dennis Prohaska's specialty?

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

Is Dennis Prohaska enrolled in Medicare?

Yes. Dennis Prohaska 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 Dennis Prohaska's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Prohaska reassigns Medicare benefits to 10 organizations: Friedell Clinic, S. C. (Chicago, IL), Advanced Pain & Anesthesia Consultants, PC (Crown Point, IN), Centers For Pain Control, Inc (La Porte, IN), Riverside Health System (Kankakee, IL), Swedishamerican Hospital (Sycamore, IL) and 5 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 Dennis Prohaska's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dennis Prohaska accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Anthem Blue Cross and Blue Shield and CareSource list Dennis Prohaska 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 Dennis Prohaska affiliated with any hospitals?

According to CMS data, Dennis Prohaska is affiliated with Riverside Medical Center, Franciscan Health Michigan City, Franciscan Health Dyer, Franciscan Health Crown Point and Franciscan Health Munster.

When was this NPI record last updated?

The NPPES record for Dennis Prohaska was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.