DR. GREGORY MARK HEIDEMAN M.D.
NPI 1295820546
Radiology - Diagnostic Radiology in St Francis, WI

Q: What is Gregory Heideman's NPI number?

The NPI number for Gregory Heideman is 1295820546. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Q: What is Gregory Heideman'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 Gregory Heideman was last updated on April 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment

2000 E LAYTON AVE, ST FRANCIS, WI 53235(414) 744-6589 Get Directions Write a Review

NPPES record last updated: April 1, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 1, 2024, Dec 2, 2021, Dec 18, 2019 (3 updates tracked since 2019).

On this page

About Dr. Gregory Mark Heideman M.d. NPPES

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

DR. GREGORY MARK HEIDEMAN M.D. (NPI 1295820546) is an individual diagnostic radiology provider in St Francis, Wisconsin, licensed in Wisconsin (49522-020) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Aurora Health Care Central Inc, and is a graduate of University Of Wisconsin School Of Medicine (2005).

NPPES Registry Identity

NPI1295820546

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. GREGORY MARK HEIDEMANCredential: M.D.

Location Address2000 E LAYTON AVESt Francis, WI 53235-6053

Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250

Phone(414) 744-6589

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2005

Enumeration DateOctober 3, 2006

Last NPPES UpdateApril 1, 20243 updates tracked since enumeration

NPPES CertifiedApril 1, 2024

✔ NPI 1295820546 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 WI · 49522-020

Definition

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

2000 E LAYTON AVE, St Francis, WI 53235

Open in Google Maps ↗

Other Identifiers 1

Medicaid100008514WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).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. Gregory Mark Heideman 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 ID6305970021

PECOS Enrollment IDI20100817001190

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 Gregory Heideman reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lakeshore Medical Clinic, LLC

Same address

Family Medicine

2000 E LAYTON AVE STE 100
Saint Francis, WI 53235

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

NPI 1003861188 (414) 744-6589

Aurora Health Care Metro, Inc.

3.9 mi

Clinic/Center

2900 W OKLAHOMA AVE.
Milwaukee, WI 53215

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

NPI 1073739926 (414) 649-6000

Aurora Medical Group, Inc.

4.3 mi

Nurse Anesthetist, Certified Registered

3301 W FOREST HOME AVE
Milwaukee, WI 53215

Reassigned Medicare billing, Wisconsin enrollment
4,609 clinicians in this Medicare group

NPI 1427271378 (877) 576-3544

Aurora Advanced Healthcare, Inc.

13 mi

Family Medicine

3003 W GOOD HOPE RD
Milwaukee, WI 53209

Reassigned Medicare billing, Wisconsin enrollment
1,615 clinicians in this Medicare group

NPI 1265629133 (414) 352-3100

Aurora Health Care North, Inc.

82 mi

General Acute Care Hospital

5000 MEMORIAL DR
Two Rivers, WI 54241

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

NPI 1477508687 (920) 794-5000

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 27

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.

595 services558 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.

277 services273 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.

179 services177 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.

98 services97 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.

92 services90 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.

81 services80 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.

56 services54 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.

40 services36 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.

37 services37 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.

35 services33 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.

31 services31 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.

30 services30 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.

28 services28 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.

27 services27 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.

26 services26 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.

25 services25 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

19 services19 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.

18 services18 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.

17 services17 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

17 services17 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

14 services14 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.

14 services14 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

14 services14 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

14 services14 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.

12 services12 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

12 services12 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

Hospital Affiliations CMS Care Compare 5

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

Aurora Health Care Central Inc

Acute Care Hospitals · Sheboygan, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520035

Location3400 Union AveSheboygan, WI 53081 · Sheboygan County

Emergency services Birthing friendly

Aurora St Lukes Medical Center

Acute Care Hospitals · Milwaukee, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520138

Location2900 W Oklahoma AveMilwaukee, WI 53215 · Milwaukee County

Emergency services Birthing friendly

West Allis Memorial Hospital

Acute Care Hospitals · West Allis, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520139

Location8901 W Lincoln AveWest Allis, WI 53227 · Milwaukee County

Emergency services Birthing friendly

Aurora Medical Center Kenosha

Acute Care Hospitals · Kenosha, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520189

Location10400 75th StKenosha, WI 53142 · Kenosha County

Emergency services Birthing friendly

Aurora Medical Center

Acute Care Hospitals · Grafton, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520207

Location975 Port Washington RoadGrafton, WI 53024 · Ozaukee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53235 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

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$67.37 typical visit price

range $17.40 – $133.76

Typical copayment $16.84 (range $4.35 – $33.44)

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.

EDWARD ST VILLE M.D

Radiology (Diagnostic Radiology)

2000 E LAYTON AVE
ST FRANCIS, WI 53235

Milwaukee County (414) 744-6589

KATELYN VANA HAASCH PA-C

Physician Assistant

2000 E LAYTON AVE
ST FRANCIS, WI 53235

Milwaukee County (414) 744-7880

ALEXANDRIA JOHNSON DPT

Physical Therapist

2000 E LAYTON AVE
ST FRANCIS, WI 53235

Milwaukee County (414) 747-8400

DR. MASSIHULLAH HAMIDI M.D., PH.D.

Radiology (Diagnostic Radiology)

2000 E LAYTON AVE
ST FRANCIS, WI 53235

Milwaukee County (414) 744-6589

RICHARD M. HAYES M.D.

Internal Medicine

2000 E LAYTON AVE
SAINT FRANCIS, WI 53235

Milwaukee County (414) 744-6589

ANAND BRAHMAMDAM DO

Radiology (Diagnostic Radiology)

2000 E LAYTON AVE
ST FRANCIS, WI 53235

Milwaukee County (414) 744-6589

HERSLOF'S, INC

Technician/Technologist (Optician)

2000 E LAYTON AVE, SUITE 110
MILWAUKEE, WI 53235

Milwaukee County (414) 481-8107

CHRISTOPHER DIMINO

Specialist/Technologist (Athletic Trainer)

2000 E LAYTON AVE
SAINT FRANCIS, WI 53235

Milwaukee County (608) 575-2799

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 Gregory Heideman's NPI number?

The NPI number for Gregory Heideman is 1295820546. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Gregory Heideman located?

Gregory Heideman practices at 2000 E Layton Ave, St Francis, WI 53235. The listed phone number is (414) 744-6589.

What is Gregory Heideman's specialty?

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

Is Gregory Heideman enrolled in Medicare?

Yes. Gregory Heideman 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 Gregory Heideman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Heideman reassigns Medicare benefits to 5 organizations: Lakeshore Medical Clinic, LLC (Saint Francis, WI), Aurora Health Care Metro, Inc. (Milwaukee, WI), Aurora Medical Group, Inc. (Milwaukee, WI), Aurora Advanced Healthcare, Inc. (Milwaukee, WI) and Aurora Health Care North, Inc. (Two Rivers, WI). 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 Gregory Heideman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Heideman accept?

Health plans from CareSource (Common Ground Healthcare) list Gregory Heideman 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 Gregory Heideman affiliated with any hospitals?

According to CMS data, Gregory Heideman is affiliated with Aurora Health Care Central Inc, Aurora St Lukes Medical Center, West Allis Memorial Hospital, Aurora Medical Center Kenosha and Aurora Medical Center.

When was this NPI record last updated?

The NPPES record for Gregory Heideman was last updated on April 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.