Frontier Internal Medicine

We specialize in the treatment of patients age 18 and older.  Our emphasis is on preventative measures and the care of chronic diseases over the long term. 

Internal medicine specialists are uniquely prepared to deal with whatever medical problem a patient may present. We utilize a network of other physician specialists, therapists and other health care resources to ensure that our patients always receive the best and most appropriate care.

Call 303-415-4015 to make an appointment.

Services Offered

  • Quality medical care for patients age 18 and older
  • Treatment of the full variety of internal medicine problems including: high blood pressure, high cholesterol, diabetes, heart disease, lung disease, stomach and intestinal problems, arthritis, thyroid disease, and geriatric problems

Clinic Staff

  • Board-certified internal medicine physicians
  • Board-certified physician assistants with extensive experience in clinical settings
  • Friendly, experienced administrative personnel

Our Medical Staff

Kristina Anton-Schnell, M.D.

Elizabeth Lycett, M.D.

Joseph Nissim, M.D.

Tom Bachinski, PA-C


Office Hours

Monday through Friday, 9:00 a.m. - 5:00 p.m.

After Hours Nurse Call Line

The After Hours Nurse Call Line is a free service offered to all established patients of this practice after hours and on weekends. Our nurses can answer questions, provide self-care tips and help you decide whether to seek immediate medical care. To speak with one of our nurses after hours, call 303-415-4155 and select the "On call" option.

Hospital Affiliation

Frontier Internal Medicine belongs to a network of local physicians affiliated with Boulder Community Health.  Thanks to this affiliation, our patients have access to a full range of up-to-date medical services, from robot-assisted surgery to the latest clinical trials of cutting-edge medicines.

Payment Options

We have contracts with numerous insurance plans. Please call your insurance company to confirm coverage.  Frontier Internal Medicine will bill your insurance provider and patients are expected to pay all co-pays and deductibles at the time of your visit.

Frontier Internal Medicine
2101 Ken Pratt Boulevard, Suite 104
Longmont, CO 80501
Tel. 303-415-4155
Fax: 303-776-3109


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