MICHAEL WARREN GUIOU M.D.
NPI 1548436363
Radiology - Radiation Oncology in Green Bay, WI

Q: What is Michael Guiou's NPI number?

The NPI number for Michael Guiou is 1548436363. It was assigned to this individual provider in the NPPES registry on May 1, 2008.

Q: What is Michael Guiou's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Michael Guiou was last updated on December 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 May 01, 2008PECOS EnrolledAccepts Medicare Assignment

1726 SHAWANO AVE, GREEN BAY, WI 54303(920) 884-3135 Get Directions Write a Review

NPPES record last updated: December 16, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 16, 2021, Sep 15, 2016 (2 updates tracked since 2016).

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About Michael Warren Guiou M.d. NPPES

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

MICHAEL WARREN GUIOU M.D. (NPI 1548436363) is an individual radiation oncology provider in Green Bay, Wisconsin, licensed in Ohio (35122030) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Uphs Marquette Dlp Hospital, and is a graduate of University Of California, Davis School Of Medicine (2008).

NPPES Registry Identity

NPI1548436363

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameMICHAEL WARREN GUIOUCredential: M.D.

Location Address1726 SHAWANO AVEGreen Bay, WI 54303-3216

Mailing Address1726 Shawano AveGreen Bay, WI 54303-3216 · (920) 884-3135

Phone(920) 884-3135

Sole ProprietorNo

Medical School CMSUniversity Of California, Davis School Of MedicineGraduated 2008

Enumeration DateMay 1, 2008

Last NPPES UpdateDecember 16, 20212 updates tracked since enumeration

NPPES CertifiedDecember 16, 2021

✔ NPI 1548436363 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in OH · 35122030

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

1726 SHAWANO AVE, Green Bay, WI 54303

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company 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

Michael Warren Guiou 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 ID7012151251

PECOS Enrollment IDI20160330002501, I20230314001396

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 Michael Guiou reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St. Vincent Hospital-Hospital Sisters-Third Order Of St. Francis

Same address

Hematology & Oncology

1726 SHAWANO AVE
Green Bay, WI 54303

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

NPI 1184004236 (920) 498-4200

St Nicholas Hospital-Sisters Of The Third Order Of St Francis

56 mi

Internal Medicine

3100 SUPERIOR AVE
Sheboygan, WI 53081

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

NPI 1447737762 (920) 459-5192

Dlp Marquette Physician Practices Inc

88 mi

Family Medicine

800 EAST BLVD
Kingsford, MI 49802

Reassigned Medicare billing, Michigan enrollment
440 clinicians in this Medicare group

NPI 1346598844 (906) 774-4000

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 19

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 guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

199 services29 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

95 services30 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

89 services36 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

68 services26 patients

Ct guidance for insertion of radiation therapy fields 77014

67 services14 patients

Design and construction of complex radiation treatment device 77334

56 services19 patients

Radiation treatment management, 5 treatment sessions 77427

44 services21 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

35 services35 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

28 services28 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

28 services28 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

24 services23 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

19 services17 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

16 services13 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

16 services15 patients

Complex radiation therapy planning 77263

15 services13 patients

Complex radiation therapy planning for delivery of external radiation 77307

Complex radiation therapy planning involves creating a detailed plan to deliver targeted radiation doses. The process includes imaging scans to identify the area needing treatment, and designing a specific radiation plan to protect healthy tissue while effectively treating the disease.

15 services12 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

13 services13 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

13 services13 patients

Complex radiation therapy planning for delivery of external radiation 77307

12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Uphs Marquette Dlp Hospital

Acute Care Hospitals · Marquette, MI

3/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number230054

Location850 W Baraga AveMarquette, MI 49855 · Marquette County

Emergency services Birthing friendly

St Vincent Hospital

Acute Care Hospitals · Green Bay, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520075

Location835 S Van Buren StGreen Bay, WI 54301 · Brown County

Emergency services Birthing friendly

Door County Medical Center

Critical Access Hospitals · Sturgeon Bay, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number521358

Location323 South 18th AvenueSturgeon Bay, WI 54235 · Door County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54303 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

$163.24 typical visit price

range $53.90 – $163.24

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

Most-billed visit code 99205

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.

JUNHONG PACE NP

Nurse Practitioner (Family)