Mary Vierthaler, MD
Provider Credentials:
- Doctor of Medicine
Specialty:
- Nephrology
Gender:
Female
Language:
- English
CU Medicine Nephrology
Longmont
1551 Professional Lane
Suite 200
Longmont, CO 80501
Get Directions
Phone: (720) 718-8257 (720) 718-8257
Fax: (720) 718-0969
- M
- Closed
- T
- 8 a.m. - 4:30 p.m
- W
- Closed
- TH
- Closed
- F
- 8 a.m. - 4:30 p.m
- S
- Closed
- SU
- Closed
Clinic Information:
CU Medicine Nephrology offers our patients expert care within their local community. We are an outpatient facility that sees and treats patients for all kidney-related conditions and specializes in diagnosing acute causes of kidney dysfunction and long term management of chronic forms of kidney disease. (At this time we are not able to provide care for patients that are currently on dialysis.)
We uphold consistent physician-patient communication in order to develop an individualized treatment plan that meets each patient’s goals and needs. Our goal is to educate and inform our patients throughout their experience so that they can make effective choices and maintain their independence. CU Medicine Nephrology provides compassionate, high-quality health care in our endeavors to preserve our patients’ kidney function.
Conditions and Treatments
Kidneys and Urinary System
- Interstitial Nephritis
- Kidney Disease
- Cystic
- Glomerular
- Tubular
- Kidney Failure
- Kidney Stones
- Nephropathy (Nephrosis)
- Nephrotic Syndrome
- Polycystic Kidney Disease
- Proteinuria
Heart and Circulation
- High Blood Pressure
Providers
Michael Bregenzer, DNP, BSN
Provider Credentials:
- Doctor of Nursing Practice
- Bachelor of Science, Nursing
Specialty:
- Nephrology
Gender:
Male
Language:
- English
Specialties
Conditions
- Kidneys and Urinary System - Nephrotic Syndrome
- Heart and Circulation - High Blood Pressure
- Kidneys and Urinary System - Interstitial Nephritis
- Kidneys and Urinary System - Kidney Disease
- Kidneys and Urinary System - Polycystic Kidney Disease
- Kidneys and Urinary System - Nephropathy (Nephrosis)
- Kidneys and Urinary System - Kidney Failure
- Kidneys and Urinary System - Kidney Stones
- Kidneys and Urinary System
- Heart and Circulation
- Kidneys and Urinary System - Proteinuria
Policies and Procedures
How to Make an Appointment
Our clinics can see you in-person or via virtual visits. To schedule, call our clinics directly or visit our patient portal, My Health Connection, offered in partnership with UCHealth. Our Make an Appointment page has additional information and scheduling resources.
Canceling or Rescheduling an Appointment
If you need to cancel or reschedule, call your clinic at least 24 hours in advance.
Preparing for Your Visit
Plan to arrive 15-20 minutes early and bring:
- A valid photo ID
- Your current insurance card(s) and payment for your co-pay
- A list of your current medications
- Any questions or concerns you want to discuss with your provider
Patients arriving more than 10 minutes late may be asked to reschedule their appointment.
Our Plan Your Visit page has more details on what to expect before, during and after your appointment.
Billing and Insurance
Our Billing and Insurance Information page has helpful information on paying your bill online, payment options and billing estimates.
If you have billing questions, contact CU Medicine’s billing department:
Phone: 303-493-7700
Email: BillingQuestions@cumedicine.us
CU Medicine accepts a wide range of insurance plans to help patients access care. Our Accepted Insurance page provides a full list of the plans CU Medicine accepts.
Check with your insurance provider before your appointment. This way, you can confirm your benefits and coverage, as they can change.
If you do not have health insurance, contact our billing department at 303-493-7700 before your visit to discuss payment options and estimate your costs.
Our Common Clinical Fees page lists fees for common clinical services provided at CU Medicine clinics.
Patient Responsibilities
Patients are responsible for:
- Providing accurate and complete health and insurance information
- Bringing required documents and insurance information to appointments
- Meeting financial obligations related to their care
- Treating staff and providers with respect, including not using threatening or foul language
- Not smoking, vaping or using e-cigarettes inside the clinic or on clinic property
- Not bringing guns, knives or other weapons into the clinic or onto clinic property – this prohibition includes individuals with concealed weapons permits
Accessibility and Language Services
CU Medicine offers accommodations for patients with disabilities and free language assistance services. Auxiliary aids and accessible formats are available at no cost. Speak with clinic staff if you need assistance.