Summary

Dr. Nathaniel Fullerton is a board-certified internal medicine physician who has been caring for patients for over three decades. He completed his medical education at the University of Wisconsin School of Medicine & Public Health, building a strong foundation in comprehensive adult healthcare. His extensive experience spans 31 years of clinical practice, during which he has developed expertise in managing complex medical conditions. Dr. Fullerton is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Fullerton practices at multiple healthcare facilities throughout Wisconsin, including Watertown Regional Medical Center, Fort Memorial Hospital in Fort Atkinson, and Mercy Hospital and Trauma Center in Janesville. He specializes in treating serious conditions such as respiratory failure and stroke recovery. His practice includes coordinating comprehensive care services like physical therapy and cardiac stress testing to help patients regain their health and independence. Patients consistently rate Dr. Fullerton highly for his care, giving him a 5.0 average rating.
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Overview based on verified provider data

Quick Facts

  • 5
  • 31 years of experience
  • speaks English, Spanish
  • University Of Wisconsin School Of Medicine & Public Health
  • 1 written review
  • 1 specialty
  • 6 areas of expertise
  • 8 hospital affiliations
  • 7 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Nathaniel J Fullerton has 7 locations

Fort Memorial Hospital

611 Sherman Ave EFort Atkinson, WI 53538

Mercy Hospital And Trauma Center

1000 Mineral Point AveJanesville, WI 53548

Aurora Baycare Medical Center

2845 Greenbrier RdGreen Bay, WI 54311

Aurora Baycare Medical Center

2845 Greenbrier Rd Ste 310Green Bay, WI 54311

Aurora Baycare Medical Center

2845 Greenbrier Rd Ste 330Green Bay, WI 54311

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Dr. Nathaniel J Fullerton, MDEric HarkerDr. Adewumi Bakare DMSc, PA-CDr. Yogi Gundamraj, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
31 Years of Experience 25 Years of Experience 5 Years of Experience 29 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) Speaks English
Watertown , WILyons , COMesquite , TXBrookfield , WI
Med School: University Of Wisconsin School Of Medicine & Public Health Med School: Duke University School Of Medicine Med School: University of Lynchburg - DMSc Med School: Spartan Health Sciences University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Nathaniel J Fullerton

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Nathaniel J Fullerton has the following specialty

Specialty Expertise

Dr. Nathaniel J Fullerton has the following 6 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

31 Years Experience

Dr. Nathaniel J Fullerton holds an expired medical license in the state of Wisconsin.

Medical License

Medical Doctor with an expired medical license in the state of Wisconsin that expired in 2025.

Education & Training

Medical School

Graduated from University Of Wisconsin School Of Medicine & Public Health in 1995.

NPI Number

Dr. Fullerton's NPI number is 1366417461.

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Frequently Asked Questions

Does Dr. Nathaniel Fullerton accept virtual/telehealth appointments?
Dr. Nathaniel Fullerton has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Nathaniel Fullerton affiliated with?
Dr. Nathaniel Fullerton is affiliated with Fort Memorial Hospital, Mercyhealth Hospital And Trauma Center Janesville, Watertown Regional Medical Center, Aurora Baycare Medical Center, Hshs Saint Vincent Hospital, Emplify Health Bellin, Ssm Health Waupun Memorial Hospital, and Select Specialty Hospital Madison.
Where is Dr. Nathaniel Fullerton's office located?
Dr. Nathaniel Fullerton's office is located at 125 Hospital Dr, Watertown, WI, 53098.
How can I make an appointment with Dr. Nathaniel Fullerton?
You can find contact information for Dr. Nathaniel Fullerton here on Vitals.
What languages does Dr. Nathaniel Fullerton speak?
Dr. Nathaniel Fullerton speaks English and Spanish.

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