We're pleased to offer the following services in the Greater Phoenix Metropolitan Area:


Dr. Babyak brings 30 years of veterinary experience to the Greater Phoenix area. She is highly qualified and will consult with fellow veterinarians on complicated internal medicine cases and assist with their diagnostic needs. She will provide practical, concise information regarding cases. She is not currently available for direct consultation with pet owners, due to the ongoing COVID-19 pandemic." 



Our state-of-the-art ultrasound machine features pulsed-wave, continuous-wave, and color-flow Doppler. Ultrasonographic examination of the abdomen, thoracic cavity, heart, thyroid gland, parathyroid glands, and other structures are routinely performed. Color-flow Doppler is available to detect shunts and abnormal blood flow. Ultrasound-guided needle aspiration and tru-cut biopsies are routinely used to collect fluid and tissue samples for various laboratory tests (cytology, culture, histopathology, fluid analysis). In addition, we use ultrasound to guide various therapies. For instance, ultrasound guidance can safely drain abnormal fluid accumulations within the abdominal, pleural, and pericardial cavities. We also use ultrasound guidance to create pericardial windows and to perform alcohol ablation of parathyroid nodules and certain cysts within organs.


We have a wide variety of endoscopes, to facilitate the evaluation of veterinary patients of all sizes. Video endoscopy is used to perform all examinations. The following endoscopic procedures are routinely performed: rhinoscopy, laryngoscopy, bronchoscopy, esophagoscopy, gastroduodenoscopy, colonoscopy, vaginoscopy, cystoscopy, and urethroscopy. Associated procedures that are routinely performed include endoscopic biopsies, foreign body retrieval (everything from treble hooks to corn cobs), PEG tube placement (stomach feeding tube), tracheal stent placement, bronchoalveolar lavage, endoscopic electrosurgery, and treatment of strictures with balloon dilation/bougienage.

Doppler Blood Pressure Measurement

Systemic hypertension is a silent killer. Doppler blood pressure measurements are routinely obtained on all patients who are presented for an echocardiogram, and in selected cases where systemic hypertension is a concern.

Miscellaneous Diagnostic and Therapeutic Procedures

Dr. Babyak is qualified to perform a number of special diagnostic and therapeutic procedures. Examples include stent placement, PEG tube placement, bone biopsies, bone marrow aspirates & biopsies, joint taps, and nasal flushing for certain fungal infections.

Types of Pets Seen

At Phoenix Veterinary Internal Medicine Services, we primarily see the following types of pets:

  • Dogs
  • Cats 
  • Exotics (on a case-to-case basis, please call for more information)

We perform diagnostic ultrasound and endoscopy on other animal species, too. We have done work for the Phoenix Zoo, Wildlife World Zoo, Phoenix Herpetological Sanctuary, Southwest Wildlife Conservation Center, Sea Life Arizona Aquarium, and Siegfried and Roy (the famous white tigers). Call us for more information.


Phoenix Veterinary Internal Medicine Services accepts payment via cash, check, MasterCard, Visa, American Express, or Discover. So that we can continue to provide you high quality service utilizing the best medical technologies, we request that payment be made at the time services are rendered.


Phoenix Veterinary Internal Medicine Services offers discounted services to our referring veterinarians and their staff.  Pre-approval is required.

Office Hours

Our Regular Schedule

Phoenix Veterinary Internal Medicine Services


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm








  • "We can't express how thankful we are for your amazing care and service for our Charlie. You found and fixed his bleeding problem after years of issues. Thank you from the bottom of our hearts for giving outstanding care. You're a true blessing to the animal world."
    With sincere gratitude, Joe & Connie
  • "We really appreciated your time and the options you provided to us for Annie. It is difficult to put aside emotions and make the right decision for our four legged friends who depend on us and trust us. Having professionals like you available, helps a great deal in these difficult times. Never underestimate the difference you make, Dr. Greene. Thank you!"
  • "Thank you for all you have done and are still doing for Stella. We really appreciate it."
    Ronda M.
  • "I can’t thank Dr. Greene enough for what he has done for Buttons and Me."
    Lois S.
  • "Thank you for your help. Your kindness will not be forgotten!"
    Lori H.
  • "Very professional, I've known Dr. Greene for years! Very compassionate and knowledgeable in the care of your pet. This Dr. Greene goes above and beyond the call of duty for you and your pet’s well-being!"
    Lacy M.
  • "Dr. Greene understood the urgency that was needed for Gracie Mae, when others did not. Knowing you and your team were there to help was reassuring. Thank you!"
    Karen W.
  • "Your kindness and compassion has touched my heart deeply. It is because of people like you that make the world a better place. Please continue to share your light with the world!"
    Carla M.
  • "Dr. Greene’s expertise was invaluable and much appreciated. He put me at ease during an anxious time. I enjoyed discussing tennis with him, which, seemed fitting because BJ was named after a tennis player."
    Rose W.
  • "Thank you for helping with Eddie. Because of your expertise, he did not have to endure surgery. He has recovered well and I appreciate your kindness."
    Pat M.
  • "Thanks for saving Maxwell’s life! He means the world to our family. We appreciate the compassion, kindness, and prompt attention of your staff."
    Bill & Marilyn R.
  • "I am always thankful for those who help the most precious thing to me. Thank you for helping with LuLu."
    Carla M.
  • "Thank you for helping with Kismet. You have been so wonderful and kind to us and we are so thankful."
    John B. & Jonette S.
  • "Thank you for your help with Annie. I appreciate your compassion and generosity. I will never forget it!"
  • "Thank you for your professional excellence, personal care, rapid response, and overall generosity. There have been very few times I have found people that go the extra mile and that really care. I am very grateful that I was referred to you."
  • "Thank you for everything you did for our Barak. You went above and beyond what any vet would have done. You were a God-send to us in our time of need. We will always remember and cherish your kindness. Thanks for making a difference!"
    Warren & Deanna S.
  • "Thank you Dr. Greene for coming in the middle of the night for Maggie. She was a great companion."
    Heather C.