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A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Nicolette Janzen:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Nicolette Janzen is Good. Dr. Janzen has been reviewed by 10 patients who have provided 3 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 4.1
Courteous Staff 4.6
Accurate Diagnosis 4.3
Bedside Manner 4.3
Spends Time with Me 4.3
Follows Up After Visit 4.3

Specialties & Research

Dr. Nicolette Janzen, MD is board certified in Urology.

  • She has special expertise in 8 areas:
  • Cryosurgery
  • Hypospadias
  • Kidney Cancer
  • Kidney Cancer (Renal Cell Carcinoma)
  • Nephrectomy (Kidney Removal)
  • Overactive Urinary Bladder
  • Urinary Tract Infections (UTI)
  • Vesico-Ureteral Reflux

Education & Awards

Dr. Janzen graduated from Cornell University, New York.


Dr. Janzen has 8 hospital affiliations:

  • Ben Taub General Hospital 
  • Memorial Hermann Memorial City Hospital 


  • Dutch

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Additional Information
Dr. Nicolette K Janzen MD is a female Urologist, has 12 years of experience and practices in Urology.
Where does Dr. Nicolette K. Janzen practice?
Dr. Nicolette Janzen has 1 office location.
Dr. Nicolette Janzen practices Urology near Houston, TX.
See Houston Urologists.