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Active NPI 1518963347 Individual Practitioner Male Practitioner

Dr. Ivan L Maldonado , MD

Surgery - Trauma Surgery • Marshfield, WI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Ivan Maldonado, MD is a certified Surgery - Trauma Surgery practicing in Marshfield, WI. With approximately 38 years of clinical experience since graduating from Ponce School Of Medicine in 1988, Dr. Maldonado delivers high-quality medical care to the local community at 1000 N OAK AVE.

Dr. Maldonado is affiliated with Mchs Hospitals Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, critical care, first, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1000 N Oak Ave

Marshfield, WI 544495703

Telephone 7153875511
Associated Practice Facility / Clinic
🏢 Marshfield Clinic Inc Facility NPI 1952347981

Medicare Profile & Education

Medical School

Ponce School Of Medicine

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery - Trauma Surgery in Marshfield, WI

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
38 Yrs +18.9 yrs vs City Avg
City Avg: 19.1 Yrs
State Avg: 19.1 Yrs
Regional Practice Density
7 Specialists

Practicing in Marshfield, WI (54 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
85.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Maldonado (38 Years) 38 Yrs
Marshfield Specialty Average (19.1 Years) 19.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
59 34 $326.00 $73.16
99291 Critical care, first 30-74 minutes
24 15 $1970.00 $192.94
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
21 20 $470.10 $109.99
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
11 11 $915.36 $160.80

Medical Specialties & State Licenses

CMS Verified: 2026-04-23
Surgery - Trauma Surgery Primary Specialty

NUCC Taxonomy Code: 2086S0127X

State License WI 55941

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Surgery

NUCC Taxonomy Code: 208600000X

State License NJ 59285

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

State License WI 55941

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery - Trauma Surgery

NUCC Taxonomy Code: 2086S0127X

State License NJ 59285

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Surgery - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License NJ 59285

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Surgery - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License WI 55941

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
1518963347 (WI)

Hospital & Practice Group Affiliations

Mchs Hospitals Inc

1000 N Oak Ave, Marshfield, WI 544495703

Phone: 7153875511

Mchs Hospitals Inc

1000 N Oak Ave, Marshfield, WI 544495703

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Muhammad Maaz Zuberi , MBBS

Surgery - Vascular Surgery

NPI 1003307638

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Dr. Jonathan Cutlan , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1013030758

Doctor of Medicine (M.D.)

Dr. Michael Katsnelson , MD

Psychiatry & Neurology - Neurology

NPI 1013170067

Doctor of Medicine (M.D.)

Kimberly Badzinski , CDE

Nutritionist - Nutrition, Education

NPI 1013234780

Certified Diabetes Educator

Dr. James Nash , DO

Internal Medicine

NPI 1013323187

Doctor of Osteopathic Medicine (D.O.)

Dr. Tahir Khan , MBBS

Internal Medicine - Pulmonary Disease

NPI 1013328095

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 23, 2026

Surgery (License #59285 in NJ)

NPI Profile Active September 14, 2011

NPI status registered as active in NPPES database

📍
Updated Practice Location September 14, 2011

Registered at 1000 N OAK AVE, MARSHFIELD, WI 544495703 (Tel: 7153875511)

📍
Updated Business Mailing Address September 14, 2011

Registered at 1000 N OAK AVE, MARSHFIELD, WI 544495703 (Tel: 7153875511)

👤
Provider Name / Credentials Updated September 14, 2011

Recorded as IVAN MALDONADO, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 14, 2011

Surgery (License #55941 in WI)

🟢
Initial NPI Registration & Enumeration June 27, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1518963347
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 27, 2005
Last Update: April 23, 2026
Sole Proprietor: No

Mailing Address

1000 N Oak Ave

Marshfield, WI 544495703

Phone: 7153875511

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.