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Welcome


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Welcome


Aspen Internal Medicine Consultants, with Ann Mass, M.D. and Paula Kadison, M.D., focuses on the differential diagnosis, treatment and follow-up of adult internal medical problems.  Both physicians also work as hospitalists at Aspen Valley Hospital.  We are particularly interested in addressing complex presentations of disease and work closely with sub-specialists both in and outside the valley.  Our  office schedule is set up to accommodate patients on a same-day basis for acute medical concerns.  

If you have any questions, feel free to contact us by phone at 970-544-1234, by fax at 970-544-1310 or e-mail at aspeninternalmed@gmail.com 

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About Us


About Us


Ann Mass M.D. & Paula Kadison M.D.

Ann Mass M.D.

Ann Mass M.D.

Ann Mass M.D. was born and raised in New York City and attended Harvard Medical School, from which she graduated A.O.A. She completed her training in Internal Medicine at Harbor General U.C.L.A. where she was chief resident in medicine and did fellowship work in infectious diseases.  She has had a long-standing practice in internal medicine in Aspen, Colorado and also works as a hospitalist at Aspen Valley Hospital.  She has served on numerous committees at the hospital.  She is trained in bone densitometry and certified to read and interpret bone density testing done at the hospital.  Her special interests include early detection and prevention, with specific focus on cardiovascular health, metabolic bone disease with focus on diagnosis and treatment of osteoporosis and infectious diseases. Foremost, she enjoys the challenge of differential diagnosis in internal medicine – addressing and solving complex medical presentations.  Dr. Mass is on the clinical faculty at the University of Colorado Medical School and is active in mentoring students.  Since 2010, she has worked in partnership with Paula Kadison M.D.

Paula Kadison M.D. 

Paula Kadison M.D. 

Paula Kadison M.D. graduated from the Duke University School of Medicine and also did an Internal Medicine Residency there, with fellowship work in Rheumatology and time as Assistant Chief Resident. She then moved to Boston, MA where she trained in research at the Dana Farber Cancer Institute and completed a Medical Oncology fellowship at the Massachusetts General Hospital (MGH).  At the MGH she helped open the Bone Marrow Transplant Unit.   She was a founder and chief medical officer of a medical software company until moving to Aspen in 2006.  In 2010, she joined Aspen Internal Medicine Consultants.  

Dr. Kadison enjoys helping patients with any medical issue but is especially interested in cardiovascular and cancer disease screening and prevention, the special needs of cancer survivors, exercise and high-altitude physiology, and autoimmune/rheumatologic disease.  In addition to her clinical practice as Aspen Internal Medicine Consultants she is a hospitalist at Aspen Valley Hospital (AVH).   

Mackenzie Tulleners NP-C

Mackenzie Tulleners NP-C

Mackenzie Tulleners, NP-C, is a board certified Adult and Gerontology Primary Care Nurse Practitioner. She was born and raised in raised in Carbondale, CO. She attended Colorado State University where she graduated with her BS in Biology and Human Anatomy. Mackenzie went on to attend Denver School of Nursing where she graduated Summa Cum Laude with her BS in Nursing. She worked as a hospital nurse in the ICU, Medical-Surgical and Palliative Care units. While working as a nurse at the University of North Carolina – Chapel Hill in their Medical ICU/step-down unit, she returned to school to pursue her Nurse Practitioner Licensure. She attended Duke University, received her MSN, and graduated with honors. 

Mackenzie and her husband have recently moved back to the Roaring Fork Valley to enjoy family, friends, and the unmatched natural beauty and opportunity for outdoor adventure. She thrives on staying active: enjoying running, hiking, biking, and spending time with family and friends. 

Mackenzie believes in patient-centered care and partnering with patients in a joint problem-solving effort to address health concerns, and achieve each individual’s health goals. She believes in combining the basics of a healthy diet, exercise, lifestyle modifications, and evidence-based medicine to achieve the best possible health outcomes for each patient. 

Mackenzie is currently accepting new patients and is available for walk-in appointments Monday-Friday 8:30am-4:30pm (closed for lunch 1pm-2pm). 


Drs. Mass and Kadison are Assistant Clinical Professors in the Department of Internal Medicine at the University of Colorado.  Our practice incorporates the teaching of third year medical students who come to Aspen from Denver to work with us in the office and at Aspen Valley Hospital.  Students rotate with us for one month while learning the clinical practice of medicine in a rural setting.  This program has been highly regarded by our patients and has received high reviews at the University.  

Aspen Internal Medicine Consultants is one of a select number of practices on the western slope of Colorado that has been awarded a Colorado Primary Care Plus Initiative grant from the state of Colorado.  This grant provides funds for us to explore new ways of communicating with and expanding care to our patient population.  

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Patient Portal


Patient Portal


Ann Mass M.D. & Paula Kadison M.D.

Ann Mass M.D. & Paula Kadison M.D.

Are you looking for a new doctor? Are you a current patient and need to set up an appointment? Do you need a prescription refill? Do you need to pay a bill? Do you have a question for the staff of Aspen Internal Medicine Consultants? 

You have come to the right place! 

Using our new on-line patient portal system you can take care of all of those needs and more - safe, secure and private. 

For an invitation to sign up with the patient portal call us at 970-544-1234 or send an e-mail by clicking here

Click here to enter the Patient Portal

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Aspen Mini-Med


Aspen Mini-Med


Aspen Mini-Med Card (Front) 

Aspen Mini-Med Card (Front) 

Aspen Mini-Med Card (Back) 

Aspen Mini-Med Card (Back) 

Aspen Mini-Med provides a laminated credit card-sized document with a concise medical history on one side and an EKG on the other.  It is easily stored in a wallet and can be presented at emergency rooms, physician offices, etc.  Aspen Mini-Med is an excellent way for a patient to carry a summary of their pertinent medical information when travelling or consulting with other physicians. 

To learn more or get your own Aspen Mini-Med card call us at 970-544-1234 or e-mail the office by clicking here

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Aspen Preventive Health


Aspen Preventive Health


Aspen Preventive Health is a practice distinct from Aspen Internal Medicine Consultants.  It offers unique testing in areas related to cardiovascular prevention and general risk assessment.  Travel consults and immunizations are also provided in this part of our practice. Aspen Mini-Med provides laminated, credit card sized cards with a summary of a patient’s medical history on one side and an EKG on the other. A mini-med card is an excellent tool for people who travel frequently or who have complex medical histories.  Lastly, Aspen Preventive Health offers concierge service to patients who are interested in increased access to our practice.  

To learn more about Aspen Preventive Health and our concierge services call us at 970-544-1234 or e-mail the office by clicking here

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Contact


Contact


Aspen Internal Medicine Consultants 

225 N. Mill Street, Suite #116

Aspen, CO 81611

Phone: 970-544-1234 

Fax: 970-544-1310

E-Mail: aspeninternalmed@gmail.com

Hours: Monday-Friday 8:30am to 5pm 

Background Art Images by Barbara Conviser