About Practice

Dr. Igor Borisov and Dr. Daniel Witten along with the medical team at Ninth Avenue Internal Medicine provide compassionate care to patients in Denver, CO. They offer a full scope of services, including annual physicals, allergy testing, EKG testing for neurological diseases, and diabetes management.

The doctors routinely screen and treat patients for a wide range of acute and chronic conditions, including high cholesterol, heart disease, diabetes, sexually transmitted infections, digestive diseases, and more. Flu vaccines, and onsite lab and finger-stick tests are also available.

Preventive medicine is a high priority for the physicians at Ninth Avenue Internal Medicine, to catch signs and symptoms of chronic diseases and help patients feel better. 

Ninth Avenue Internal Medicine accepts most insurances, and same-day appointments are available. If you’re seeking medical care to prevent or manage an acute or chronic health condition, call the office or book an appointment online today.

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Ninth Avenue Internal Medicine

Dr. Igor Borisov and Dr. Daniel Witten along with the medical team at Ninth Avenue Internal Medicine provide compassionate care to patients in Denver, CO. They offer a full scope of services, including annual physicals, allergy testing, EKG testing for neurological diseases, and diabetes management.

The doctors routinely screen and treat patients for a wide range of acute and chronic conditions, including high cholesterol, heart disease, diabetes, sexually transmitted infections, digestive diseases, and more. Flu vaccines, and onsite lab and finger-stick tests are also available.

Preventive medicine is a high priority for the physicians at Ninth Avenue Internal Medicine, to catch signs and symptoms of chronic diseases and help patients feel better. 

Ninth Avenue Internal Medicine accepts most insurances, and same-day appointments are available. If you’re seeking medical care to prevent or manage an acute or chronic health condition, call the office or book an appointment online today.


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Testimonials

Words from our patients

  • Google

    "Good, clean office, with friendly and caring staff. Have been to both doctors, Dr. Witten and Dr. Borisov are both very educated and caring."

    Verified Patient
  • Google

    "It's been over 10 years both me and my wife have been seeing Dr Witten. [...]been there for many ups and downs and we recommend them to anyone."

    John W.
  • Google

    "I would highly recommend this office for any and all internal medicine needs. They are efficient, professional and manage to have a great sense of humor."

    Scott M.
  • Yelp

    "I see Dr. Witten, and he is my favorite doctor ever. I feel so comfortable when I'm talking with him, and I can be honest and know he's not judging me."

    Angela A.
  • Yelp

    "As much as I don't like being sick, these guys were awesome and made me feel a lot better. I switched from my old doctor to them that week."

    R. A.
Location
Ninth Avenue Internal Medicine
4500 East 9th Avenue, Suite 140
Denver, CO 80220
Phone: 303-394-2152
Fax: (303) 394-2496
Office Hours

Get in touch

303-394-2152

Ninth Avenue Internal Medicine
4500 East 9th Avenue
Suite 140
Denver, CO 80220