MR. JOHN STUART TO MD
NPI 1346214715
Radiology - Diagnostic Radiology in Iron Mountain, MI

Q: What is John To's NPI number?

The NPI number for John To is 1346214715. It was assigned to this individual provider in the NPPES registry on February 14, 2006.

Q: What is John To'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 John To was last updated on February 15, 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 February 14, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

1721 S STEPHENSON AVE, IRON MOUNTAIN, MI 49801(906) 776-5565 Get Directions Write a Review

NPPES record last updated: February 15, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 6, 2024, Jan 5, 2023 (2 updates tracked since 2023).

On this page

About Mr. John Stuart To Md NPPES

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

MR. JOHN STUART TO MD (NPI 1346214715) is an individual diagnostic radiology provider in Iron Mountain, Michigan, licensed in Michigan (4301068165) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Dickinson County Memorial Hospital, and maintains a secondary practice location in Marshfield.

NPPES Registry Identity

NPI1346214715

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameMR. JOHN STUART TOCredential: MD

Location Address1721 S STEPHENSON AVEIron Mountain, MI 49801

Mailing Address1721 S Stephenson AveIron Mountain, MI 49801-3637 · (906) 776-5362

Phone(906) 776-5565

Sole ProprietorNo

Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 1991

Enumeration DateFebruary 14, 2006

Last NPPES UpdateFebruary 15, 20242 updates tracked since enumeration

NPPES CertifiedFebruary 15, 2024

✔ NPI 1346214715 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in MI · 4301068165✔ Licensed in WI · 41696

Definition

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

1721 S STEPHENSON AVE, Iron Mountain, MI 49801

Open in Google Maps ↗

Secondary Practice Location 1

Location 11000 N Oak AveMarshfield, WI 54449-5702 · Phone (715) 387-5511

Other Identifiers 1

Medicaid3289182MI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.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

Mr. John Stuart To Md 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 ID345134854

PECOS Enrollment IDI20040214000150, I20060922000441

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 John To reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Radiology Associates Of Iron Mountain P L C

Same address

Diagnostic Radiology

1721 S STEPHENSON AVE
Iron Mountain, MI 49801

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

NPI 1154400935 (906) 774-1313

Dickinson County Healthcare System

Same address

Neurology with Special Qualifications in Child Neurology

1711 S STEPHENSON AVE, SUITE 230
Iron Mountain, MI 49801

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

NPI 1427340868 (906) 774-1313

Mchs Hospitals Inc

80 mi

Clinic/Center

9576 HIGHWAY 70
Minocqua, WI 54548

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1952890873 (Wisconsin)
2,476 clinicians in this Medicare group

NPI 1942854716 (715) 358-1710

Flambeau Hospital Inc

116 mi

Clinic/Center

98 SHERRY AVE
Park Falls, WI 54552

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1700963048 (Wisconsin)
1,351 clinicians in this Medicare group

NPI 1194317966 (715) 762-2484

Marshfield Clinic Inc

131 mi

Clinic/Center

1000 N OAK AVE
Marshfield, WI 54449

Reassigned Medicare billing, Michigan and Wisconsin enrollments
7 clinicians in this Medicare group

NPI 1952347981 (715) 387-5511

Memorial Hospital Inc

152 mi

Critical Access

N3708 RIVER AVE
Neillsville, WI 54456

Reassigned Medicare billing, Wisconsin enrollment
1,440 clinicians in this Medicare group

NPI 1346239373 (715) 743-3101

Beaver Dam Community Hospitals Inc

153 mi

Family Medicine

180 GATEWAY DR
Waupun, WI 53963

Reassigned Medicare billing, Wisconsin enrollment
1,447 clinicians in this Medicare group

NPI 1629374780 (920) 345-1306

Lakeview Medical Center Inc Of Rice Lake

178 mi

Clinic/Center

806 2ND ST
Chetek, WI 54728

Reassigned Medicare billing, Wisconsin enrollment
1,616 clinicians in this Medicare group

NPI 1659008605 (715) 924-2000

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 18

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.

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

271 services271 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

271 services271 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.

139 services108 patients

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.

96 services96 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.

93 services89 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

33 services33 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.

31 services30 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.

27 services26 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.

24 services23 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.

16 services16 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.

15 services14 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.

14 services14 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.

14 services13 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.

12 services12 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

12 services12 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

12 services11 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

12 services12 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Dickinson County Memorial Hospital

Acute Care Hospitals · Iron Mountain, MI

4/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number230055

Location1721 S Stephenson AveIron Mountain, MI 49801 · Dickinson County

Emergency services Birthing friendly

Marshfield Medical Center - Rice Lake

Acute Care Hospitals · Rice Lake, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520011

Location1700 West Stout StreetRice Lake, WI 54868 · Barron County

Emergency services Birthing friendly

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520037

Location611 St Joseph AveMarshfield, WI 54449 · Wood County

Emergency services Birthing friendly

Marshfield Medical Center - Weston

Acute Care Hospitals · Weston, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520202

Location3400 Ministry ParkwayWeston, WI 54476 · Marathon County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49801 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

$84.74 typical visit price

range $54.34 – $166.68

Typical copayment $21.18 (range $13.58 – $41.67)

Most-billed visit code 99203

Established Patient

$68.07 typical visit price

range $17.09 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

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.

75/100

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

Scored as part of a group practice

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

90%568 patients

Radiology: Exposure Dose Indices Reported for Procedures Using Fluoroscopy

100%28 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

JENNIFER MORROW CRNA

Nurse Anesthetist, Certified Registered