DR. MARK ANDREW WELNICK M.D.
NPI 1255698221
Radiology - Diagnostic Radiology in Green Bay, WI

Q: What is Mark Welnick's NPI number?

The NPI number for Mark Welnick is 1255698221. It was assigned to this individual provider in the NPPES registry on April 16, 2012.

Q: What is Mark Welnick'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 Mark Welnick was last updated on August 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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 April 16, 2012PECOS EnrolledAccepts Medicare Assignment

744 S WEBSTER AVE, GREEN BAY, WI 54301(920) 433-6084(920) 445-7289 Get Directions Write a Review

NPPES record last updated: August 28, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Nov 3, 2020, Nov 14, 2019, Nov 8, 2019 and 2 more (5 updates tracked since 2018).

On this page

About Dr. Mark Andrew Welnick M.d. NPPES

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

DR. MARK ANDREW WELNICK M.D. (NPI 1255698221) is an individual diagnostic radiology provider in Green Bay, Wisconsin, licensed in Wisconsin (66995-20) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Dickinson County Memorial Hospital, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1255698221

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. MARK ANDREW WELNICKCredential: M.D.

Location Address744 S WEBSTER AVEGreen Bay, WI 54301-3505

Mailing AddressPo Box 22487Green Bay, WI 54305-2487 · (920) 445-7222 · Fax (920) 445-7289

Phone(920) 433-6084

Fax(920) 445-7289

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2012

Enumeration DateApril 16, 2012

Last NPPES UpdateAugust 28, 20255 updates tracked since enumeration

NPPES CertifiedAugust 28, 2025

✔ NPI 1255698221 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 WI · 66995-20✔ Licensed in MN · 63777

Definition

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

744 S WEBSTER AVE, Green Bay, WI 54301

Open in Google Maps ↗

Secondary Practice Locations 5

Location 1610 S Lincoln RdEscanaba, MI 49829-1215 · Phone (906) 786-6488 · Fax (906) 786-6409

Location 22845 Greenbrier RdGreen Bay, WI 54311-6519 · Phone (920) 288-4848 · Fax (920) 288-4956

Location 3440 Woodward AveIron Mountain, MI 49801-4631 · Phone (906) 776-9040 · Fax (906) 774-7279

Location 4820 Arbutus AveOconto, WI 54153-2004 · Phone (920) 835-1100 · Fax (920) 835-1099

Location 52820 Roosevelt RdMarinette, WI 54143-3834 · Phone (715) 735-5225 · Fax (715) 735-5388

Other Identifiers 1

OtherABR-MOCAmerican Board Of Radiology

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, CareSource (Common Ground Healthcare) and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark Andrew Welnick 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 ID2769771138

PECOS Enrollment IDI20191114000378, I20201105000666

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.

Areas of Expertise CMS Part B claims 20

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.

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.

104 services103 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.

93 services91 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.

88 services75 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.

53 services43 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

40 services40 patients

Ultrasound scan of abdominal aorta 76706

An ultrasound scan of the abdominal aorta is a non-invasive imaging test. It uses sound waves to create pictures of the main blood vessel in your abdomen, the aorta, to check its size and shape. This helps detect any abnormalities or issues early.

33 services33 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

27 services26 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.

25 services24 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

25 services25 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

22 services22 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.

22 services22 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

21 services19 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.

20 services20 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

19 services19 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.

18 services18 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.

17 services17 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

15 services14 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.

14 services14 patients

Insertion of central venous tube with port (5 years or older) 36561

A central venous tube with port is a small, flexible tube inserted into a large vein, usually in the chest. It allows for easy administration of medication, fluids, or blood products over a long period. A port is attached under the skin for easy access. It's safe for individuals aged 5 and above.

14 services14 patients

Mri scan of lower spinal canal before and after contrast 72158

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Osf St Francis Hospital And Medical Group

Critical Access Hospitals · Escanaba, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number231337

Location3401 Ludington StEscanaba, MI 49829 · Delta County

Emergency services Birthing friendly

Bellin Memorial Hospital

Acute Care Hospitals · Green Bay, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520049

Location744 S Webster AveGreen Bay, WI 54305 · Brown County

Emergency services Birthing friendly

Aurora Baycare Medical Ctr

Acute Care Hospitals · Green Bay, WI

5/5 CMS rating

OwnershipProprietary

CMS Certification Number520193

Location2845 Greenbrier RdGreen Bay, WI 54311 · Brown County

Emergency services Birthing friendly

Bellin Health Oconto Hospital

Critical Access Hospitals · Oconto, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521356

Location820 Arbutus AveOconto, WI 54153 · Oconto County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54301 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.

TAMMY ANN MOTQUIN

Nurse Practitioner (Family)