Dr Peter Janu | Oshkosh, WI | Gastroenterologist

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Peter Janu treats GERD, hiatal hernia, and esophagitis, and performs laparoscopy and upper GI endoscopy. He practices gastroenterology and surgery and has 33 years of experience. He is affiliated with Ascension Calumet Hospital and sees patients across multiple locations in Oshkosh and Appleton, Wisconsin. He earned his medical degree from the University of Wisconsin School of Medicine & Public Health. Patients on Vitals rate Peter Janu 4.63 out of 5.

Overview based on verified provider data

4.6

27 Ratings
33 years of experience
speaks English
University Of Wisconsin School Of Medicine & Public Health
22 written reviews
2 specialties
3 areas of expertise
1 hospital affiliation
7 office locations

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

Based on patient feedback. Read the reviews

Dr Janu's Ratings and Reviews

4.6

27 Ratings with 22 written Reviews

Average Wait Time 13 Minutes

How was your appointment with
Dr Janu?

Patients’ Perspective

Gave an accurate diagnosis: (18) Did WellNeeds Improvement (1)
Had a good bedside manner: (19) Did WellNeeds Improvement (0)
Spent time with me: (17) Did WellNeeds Improvement (1)
Provided follow-up after the visit: (14) Did WellNeeds Improvement (1)
Flexible scheduling: (15) Did WellNeeds Improvement (1)
Saw me in a timely manner: (2) Did WellNeeds Improvement (0)
Staff was courteous: (2) Did WellNeeds Improvement (0)

Patients consistently praise Dr. Peter Janu for his thorough explanations, kind demeanor, and professional expertise, particularly in gastrointestinal conditions and surgical interventions. They appreciate his willingness to communicate, listen, and consider multiple treatment options, as well as the supportive and knowledgeable staff that complements his practice. Negative feedback is minimal, with the only notable issue being the wait times for follow-up appointments post-procedure, which some patients found longer than expected. Overall, Dr. Janu is highly recommended by patients for his competence and compassionate care.

AI-generated from the text of patient reviews

27 ratings & reviews

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Showing 1 to 10 of 22 reviews

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After being brought back to the room, I was told it would be a short wait. Dr. Janu arrived with a smile and how are you ?? . My symptoms and test results were explained for me to understand. He truly cares for his patients !!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

Needs Improvement

September 20th, 2026

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Dr. Janu was everything you want in a surgical specialist. He asked great questions and really listened to our answers. He's not in a hurry to perform surgery, but insists on careful testing first. He has more than one option for possible solutions as well.

Did Well

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

Needs Improvement

August 5th, 2026

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Dr. Janu is kind, always takes the time to explain all treatment options in a way that is easy to understand, and has a plan. He is absolutely phenomenal. I have been working with him for 6 years and he is not hesitant to order diagnostic tests when necessary. His expertise with gastrointestinal disease and complex GI issues/surgical interventions is impressive. Dr janu and his staff are amazing.

Did Well

Gave an accurate diagnosis
Had a good bedside manner

Needs Improvement

May 23rd, 2026

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Great personality very helpful and knowledgeable.

April 15th, 2026

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I was very happy that we found Dr. Janu He is very good at what he does and at explaining the procedures. I am excited about having him fix me up in a couple of weeks. Dr Janu and his staff are all good at what they do. They all make you feel comfortable. You are all number one with me.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Flexible scheduling
Saw me in a timely manner
Staff was courteous

Needs Improvement

March 11th, 2026

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Dr. Janu is professional and down to earth at the same time. He takes the time to explain everything and answers your questions. A very good doctor. His office assistant Christi is knowledgeable and gets things done. She doesn’t miss a beat. In healthcare that’s a wonderful attribute to have. Dr. Janu has a great staff. They all compliment each other nicely.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 26th, 2026

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Very good meeting. He has an excellent bedside manner explains things well and made me feel at ease. I’m looking forward to the surgery today.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

November 19th, 2025

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Dr Janu was very thorough with his explanation of the results. I thought the 3 weeks after the procedure seemed like a long time to wait for a follow up… other than that, things went smoothly.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

November 5th, 2025

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Dr.Janu is a excellent doctor explains everything wouldn't go to any other doctor. Explains everything to the T.I will refer all my family and friends to him. I will definitely let him do my surgery I had faith in him. He knows his stuff. Very friendly to. Thanks to a neice for referring me to him. Mary

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

September 17th, 2025

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He was very professional and thourough. Plenty of time was given for the appointment and he went through everything in detail. Excellent in the doctor-patient relationship.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

August 13th, 2025

Ascension Ne Wisconsin Mercy Hospital

500 S Oakwood RdOshkosh, WI 54904

Tel: (920) 223-2000

Fox Valley Surgical Associates

1818 N Meade St Ste 240WAppleton, WI 54911

Tel: (920) 731-8131

Mon8:30 am - 5:00 pm

Tue8:30 am - 5:00 pm

Wed8:30 am - 5:00 pm

Thu8:30 am - 5:00 pm

Fri8:30 am - 5:00 pm

SatClosed

SunClosed

Thedacare Regional Medical Center Appleton

1818 N Meade StAppleton, WI 54911

Tel: (920) 731-4101

Fox Valley Surgical Associates Ltd

1405 Mill StNew London, WI 54961

Mon8:30 am - 5:00 pm

Tue8:30 am - 5:00 pm

Wed8:30 am - 5:00 pm

Thu8:30 am - 5:00 pm

Fri8:30 am - 5:00 pm

SatClosed

SunClosed

Thedacare Medical Center New London

1405 Mill StNew London, WI 54961

Tel: (920) 531-2000

Thedacare Medical Center Orthopedic Spine And Pain

2400 E Capitol DrAppleton, WI 54911

Tel: (920) 454-3300

Fox Valley Surgical Associates Ltd

2000 E Milestone DrAppleton, WI 54913

Mon8:30 am - 5:00 pm

Tue8:30 am - 5:00 pm

Wed8:30 am - 5:00 pm

Thu8:30 am - 5:00 pm

Fri8:30 am - 5:00 pm

SatClosed

SunClosed


Dr Peter Janu	Dr. Shawn Christine Ekstrom, MD	Dr. Clark Henry Boren JR., MD	Dr. Craig D Rabideau, MD
Gastroenterology	Family Medicine	Surgery	Surgery

4.6 (27 Ratings)	0 (0 Ratings)	3 (2 Ratings)	0 (0 Ratings)
33 Years of Experience	32 Years of Experience	53 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English
Oshkosh , WI	Berlin , WI	Appleton , WI	Oshkosh , WI
Med School: University Of Wisconsin School Of Medicine & Public Health	Med School: University Of Washington School Of Medicine	Med School: Northwestern University Feinberg School Of Medicine
Current Profile	View Profile	View Profile	View Profile

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Hernia
Nutritional Support
Surgery

Dr Peter Janu 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 1993.

NPI Number

Dr Janu's NPI number is 1538154026.

Dr. Carol Ruth Schermer, MD
Critical Care Medicine
35 Years Exp | Neenah, WI
(0)
Jenna Mae Spude
Nurse Practitioner
| Menasha, WI
(0)
Dr. Jared S. Greenberg, MD
Physical Medicine & Rehabilitation
| Appleton, WI
(20)
Dr. Cason Brown, DO
Osteopathic Medicine
| Appleton, WI
(14)
Dr. David C. De Witt, MD
Orthopedic Spine Surgery
| Appleton, WI
(90)
Dr. Tina Marie Sauerhammer, MD
Plastic Surgery
23 Years Exp | Appleton, WI
(7)
Dr. Tedi Vlahu
Thoracic Surgery
16 Years Exp | Savannah, GA
(0)
Dr. Jan Chenette Bax, MD
Orthopedic Surgery
46 Years Exp | Waupaca, WI
(15)
Dr. George Robert Stanis, MD
Surgery
51 Years Exp | Appleton, WI
(3)
Dr. Jeanne Marie Brochtrup, MD
Surgery
| Appleton, WI
(0)

Is Dr Peter Janu accepting new patients?: Dr Peter Janu has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr Peter Janu accept virtual/telehealth appointments?: Dr Peter Janu has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr Peter Janu accept my insurance?: You can see the insurance plans that Dr Peter Janu accepts on their Vitals profile.
Which hospitals is Dr Peter Janu affiliated with?: Dr Peter Janu is affiliated with Ascension Calumet Hospital.
How can I make an appointment with Dr Peter Janu?: You can find contact information for Dr Peter Janu here on Vitals.

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