0 reviews
Summary
My philosophy of care is very simple: I care for people the way I would care for my family and friends.
Quick Facts
- accepting new patients
- 6 insurance plans accepted
- speaks English
- 1 specialty
- 3 areas of expertise
- 1 office location
- Female
Office Location
Mercyhealth Terrace
510 N. Terrace St.Janesville, WI 53548 Tel: (608) 756-6869
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Providers
![]() | ![]() | ![]() | ![]() |
| Maria Kostantacos, APNP, FNP-BC | SUSAN K IPSEN | Patricia Irene Era | Dr. Terra E Green |
| Nurse Practitioner | Preventative Medicine | Nurse Practitioner | Nurse Practitioner |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | Speaks Chinese, Spanish, English, French |
| Janesville , WI | Fort Atkinson , WI | Sidney , MT | Beloit , WI |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Maria Kostantacos
Medical Specialties
Maria Kostantacos has the following specialty
Specialty Expertise
Maria Kostantacos has the following 3 areas of expertise
Certifications, License, & Education
MEDICAL LICENSE
Nurse Practitioner, Wisconsin, 2026, Active
Similar Doctors
Frequently Asked Questions
- Does Maria Kostantacos accept virtual/telehealth appointments?
- Maria Kostantacos has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Maria Kostantacos?
- You can find contact information for Maria Kostantacos here on Vitals.
- What languages does Maria Kostantacos speak?
- Maria Kostantacos speaks English.
- Where is Maria Kostantacos's office located?
- Maria Kostantacos's office is located at 510 N. Terrace St., Janesville, WI, 53548.
- Does Maria Kostantacos accept my insurance?
- You can see the insurance plans that Maria Kostantacos accepts on their Vitals profile.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.




