Dr. Mark E. Lanser, MD | Janesville, WI | Sleep Medicine

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In addition to being a network provider for all Dean Health Plan insurance products listed above, this provider may also be considered in-network with various commercial health insurance products. Dean providers are also participating providers for Medicare Part B, Wisconsin Medicaid, and other government payers. We encourage you to contact your insurance carrier to determine your coverage.

accepting new patients
3.4

14 Ratings
40 years of experience
6 insurance plans accepted
speaks English, Spanish
Barnes Jewish Hospital
7 written reviews
2 specialties
20 areas of expertise
2 board certifications
1 hospital affiliation
2 office locations
Male

Had a good bedside manner
Spent time with me
Provided follow-up after the visit

Based on patient feedback. Read the reviews

Dr. Lanser's Ratings and Reviews

3.4

14 Ratings with 7 written Reviews

Average Wait Time 15 Minutes

How was your appointment with
Dr. Lanser?

Patients’ Perspective

Gave an accurate diagnosis: (4) Did WellNeeds Improvement (3)
Had a good bedside manner: (5) Did WellNeeds Improvement (2)
Spent time with me: (4) Did WellNeeds Improvement (2)
Provided follow-up after the visit: (4) Did WellNeeds Improvement (1)
Flexible scheduling: (4) Did WellNeeds Improvement (1)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

14 ratings & reviews

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Showing 1 to 7 of 7 reviews

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Zero how he is still practicing is beyond me ZERO CONTINUING EDUCATION, DISMISSIVE, Arrogant and unprofessional

April 22nd, 2026

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Best Neurologist around! Very knowledgeable and such a nice person. I have no complaints! Hello Dr Lancer!

March 6th, 2026

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Dr Lancer is a very nice person, with tremendous knowledge in Neurology! I saw him for 15 years and he was always very nice!

June 6th, 2025

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His nurses were as nice as can be. He was so mean to his nurses and yelled at them constantly. He looked up my therapy notes for no reason. He didn't address my problems and was very set in his ways and decided what to do without hearing the whole story. He blamed everything on my female hormones which ended up not being the case, and he was not personable and had reasons that didn't make sense. He was cocky and very nosy. He didn't care about anything I had to say.

November 28th, 2018

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A patient had a brief semi-loss of consciousness, Lanser deemed it a seizure. After many tests and another doc saying these are not seizures, Dr. Lanser still holds the power to sign/not sign a form with the DMV, preventing the patient from driving at all, until bloodwork shows proper levels of medication. Our primary doctor recently ran that test and levels are fine, yet Lanser won't sign the form. Health care is no longer about care, but dollars.

July 16th, 2018

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I've worked with Dr. Landed for over 20 years for migraine. He's an amazing doctor!

October 7th, 2015

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He was professional, kind, caring and by far the best doctor. Diagnosed something that MANY doctors couldn't. Truly saved a life.

August 26th, 2009

Ssm Health Dean Medical Group Janesville East

3200 E Racine StJanesville, WI 53546

Tel: (608) 371-8000

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

SSM Health Dean Medical Group

225 Church StStoughton, WI 53589

Tel: (608) 877-2777

Mon7:00 am - 6:00 pm

Tue7:00 am - 6:00 pm

Wed7:00 am - 5:00 pm

Thu7:00 am - 5:00 pm

Fri7:00 am - 5:00 pm

Sat8:00 am - 11:00 am

SunClosed


Dr. Mark Edward Lanser, MD	Dr. Biana Kotlyar, MD	Dr. Deb Lynn Arter, MD	Dr. Rajesh Balagani, DO
Sleep Medicine	Neurology	Psychiatry	Pulmonology
Accepts New Patients		Accepts New Patients
3.4 (14 Ratings)	4 (4 Ratings)	0 (0 Ratings)	4.6 (9 Ratings)
40 Years of Experience	15 Years of Experience		25 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English, Spanish		Speaks English, Spanish	Speaks English
Janesville , WI	Norwalk , CT	Janesville , WI	Janesville , WI
Med School: University Of Wisconsin School Of Medicine & Public Health	Med School: Medical University Of The Americas (Nevis)		Med School: Midwestern University-Chicago College Of Osteopathic Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Accepts Medicaid
Aetna
Blue Cross Blue Shield
Humana
UnitedHealthcare
UnitedHealthcare - HMO
Unity Health Insurance

Alzheimer's Disease
Back Pain
Carpal Tunnel Syndrome
Electroencephalography (EEG)
Electromyography
Epilepsy
Headache
Insomnia
Migraine Disorder
Migraine Disorders
Movement Disorders
Multiple Sclerosis (MS)
Nerve Conduction Studies
Neurology
Occupational Medicine
Radiculopathy
Sleep Apnea (Sleep Apnea Syndromes)
Sleep Disorders
Spinal Stenosis
Stroke

EDUCATION & TRAINING

Residency

Barnes Jewish Hospital

Medical School

University Of Wisconsin School Of Medicine & Public HealthGraduated in 1986

Dr. Randall Joseph Zblewski, MD
Psychiatry
45 Years Exp | Elkhorn, WI
(8)
Dr. Keziah Ezeemwenghian Aibangbee
Family Medicine
7 Years Exp | Loves Park, IL
(1)
Shannon Gail Heidt
Nurse Practitioner
| Janesville, WI
(0)
Dr. Mustafa Abdul Waheed Mohammed
Neurology
13 Years Exp | Janesville, WI
(0)
Dr. John Matthew Ziegler
Neurology
5 Years Exp | Minneapolis, MN
(0)
Dr. Raed Hamed, MD
Sleep Medicine
| Fort Atkinson, WI
(2)
Dr. Mouhammed Rihawi, MD
Sleep Medicine
33 Years Exp | Fort Atkinson, WI
(8)
Dr. Arshad B Ahmed, MD
Neurology
33 Years Exp | West Allis, WI
(11)
Veronica Laak
Neurology
| Janesville, WI
(0)
Bonnie K Mitchell
Nurse Practitioner
| Janesville, WI
(0)

What languages does Dr. Mark Lanser speak?: Dr. Mark Lanser speaks English and Spanish.
How can I make an appointment with Dr. Mark Lanser?: You can find contact information for Dr. Mark Lanser here on Vitals.
Does Dr. Mark Lanser accept virtual/telehealth appointments?: Dr. Mark Lanser has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Mark Lanser's office located?: Dr. Mark Lanser's office is located at 3200 E Racine St, Janesville, WI, 53546.
Which hospitals is Dr. Mark Lanser affiliated with?: Dr. Mark Lanser is affiliated with Stoughton Hospital.

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