Marc H. Tanenbaum MD

My name is Marc Tanenbaum and I have been practicing medicine in Longmont for over 30 years. I specialize in Family Practice medicine with an emphasis in preventative medicine including heart disease, hypertension and diabetes. I employ the latest technology including genetic testing for cancers, heart-scans, and carotid artery ultrasounds. In addition, I work with the top laboratories in the Untied States including Boston Heart Lab, Lipo Science and Berkley Lab. The tests we employ are highly effective in evaluating the medical needs of my patients are currently only utilized by 2-3% of all doctors. Although, I currently emphasize preventative medicine, my medical practice experience includes internal medicine, pediatrics, and geriatrics.

I studied Molecular Genetics at Georgetown University. My medical degree is from the University of Louisville. I served two years in the Marine Corp during Vietnam. I enjoy hiking, landscaping and unique once in a life time challenges like paragliding and jumping out of airplanes. I have four children whose lives have taken them to distant lands throughout the world.

A poem by Glenn McKee a patient, friend, and author of many books of poetry.

He goes about his business of helping people live with a dedicated purpose
Giving all he has to give and his best is always good enough to pacify one's mind
His caring seems well suited, his manner frank but kind
Small wonder people trust this man with body-mind and soul
From the carefree days of childhood through their lives until they are old
As for me when I first met him I knew I found a friend
For what greater calling could one have than helping bodies mend

Jean Housepian, FNP-C

Jean Housepian moved to Colorado from New York City where she got her masters degree in Public Health and Nursing in 1990. With a focus on women's health, Jean joined Dr. Tanenbaum's in 2004 and now does both family practice as well as women's health.

Her interests include art, travel and scuba diving. When she has free time she spends most of it with her husband and young son. In the future she hopes to travel to Italy or Greece and to purse her interest in art and scuba diving.

Julie Brown

Julie Brown, RN, FNP-C holds Master’s and Nurse Doctorate degrees from the University of Colorado. She has clinical experience in adolescent health, women’s health and endocrinology, and before working with Marc Tanenbaum, was on the faculty at the University of Wyoming where she trained Family Nurse Practitioners. She is the mother of three and lives with her husband in Boulder.

Lee Cline

I am the office manager for Dr. Tanenbaum’s busy family practice office. I joined his staff in July, 2001. Prior to this, I spent 26 years in telecommunications as a marketing manager for Qwest Communications. I hold a Bachelors degree in Business Administration from Regis University and a Masters degree in Communications from the University of Denver. My husband Ted and I have 5 children and 5 grandchildren. I enjoy traveling, reading and serving on the board of the Longmont Sister Cities Association.

Anne Killcoyne

I am Dr. Tanenbaum’s billing manager and absolutely love it! I have my coding certification and extensive billing experience, which enables me to meet the challenges associated with getting the patients claims paid and assisting with all their billing needs. I enjoy gardening, reading and traveling by motorcycle with my wonderful husband.

Denice Miller

I graduated from Parks College with an associate degree as a medical assistant. I am also a certified phlebotomist. I’ve worked with Dr. T for two years and love it. I spend my time away from the office with my awesome family.

Patricia (Trish) Guerrero

I graduated from Parks College in 2004 with an Associates Degree in Medical Assisting. I am a certified medical assistant and phlebotomist. I worked as a phlebotomist at the Longmont Clinic for three years and as a receptionist for 1 ½ years. I have worked for Dr. Tanenbaum as a receptionist and medical assistant for two years and I love it. I enjoy reading and spending time with my wonderful husband and kids.

Tina Riepl

I received my associate degree in Radiology at Aims Community College. I have worked as a Radiologic Technologist for nine years and have been a member of Dr. Tanenbaum’s staff for 7 years. I am a native of Colorado and enjoy many outdoor activities.

Patreece Morado

I am a Medical Assistant. I graduated from Aims Community College in Greeley, CO. I moved to Longmont In July 2009 and joined Dr. Tanenbaum’s staff two months later. I have a two year old son named Diego. My future plans include continuing my education and working as an LPN. I really enjoy working for Doctor T and plan to for years to come……

Laura Lopez

I received my medical assistant certification in 2003. I joined Dr. Tanenbaum’s staff in 2008, working part time as medical assistant and receptionist. I enjoy working with Dr. Tanenbaum and my fellow employees. I have a loving husband who has been there for me in difficult times and 2 beautiful daughters. We recently added a new member to our family, a puppy named Max. We love to go out and discover new places in the mountains. My hobbies are reading and taking long walks to unwind from any stress.