Internal Medicine – Frederick


Chronic illnesses are often stressful to the patient as well as the pet owners.  At Partner Veterinary Emergency and Specialty Center in Frederick, the internal medicine team is  highly skilled and dedicated to delivering exceptional healthcare to the pet residents of Frederick and the surrounding communities.

Our internal medicine practice offers a wide range of diagnostic and therapeutic services to address various medical needs. Currently, the clinic provides state-of-the-art abdominal and thoracic ultrasounds, upper and lower endoscopy, rhinoscopy, bronchoscopy and cystoscopy. These diagnostic procedures enable precise evaluation and early detection of a variety of medical conditions, ensuring the highest level of patient care.

Drs. Kakar, Lester, and their dedicated team prioritize patient well-being and comfort. We take pride in our patient-centric approach, ensuring that each individual’s unique healthcare needs are met with compassion and expertise.

For any inquiries, appointment scheduling, or further information, please do not hesitate to reach out to us. We are eager to collaborate with your esteemed clinic/hospital and look forward to contributing to the health and well-being of our community.

Thank you for considering our services. We are excited about the opportunity to work together.


  • Diagnostic ultrasound 
  • Cholecystocentesis 
  • Sampling cavitary effusions 
  • SUB flush procedures 
  • Ultrasound guided fine needle aspirate 

Diagnostic endoscopy 

  • Bronchoscopy and bronchoalveolar lavage 
  • Colonoscopy 
  • Cystoscopy
  • Rhinoscopy and nasopharyngoscopy 
  • Upper GI endoscopy 

Interventional endoscopy 

  • Colonic stricture 
  • Esophageal stricture 
  • Nasopharyngeal stent 
  • Urethral stents 
  • Arthrocentesis (joint aspirates) 
  • Bone marrow aspirate and biopsy 
  • Fluoroscopy

Our goal is to provide thoughtful, evidence-based care with clear communication. We view veterinary medicine as a partnership and utilize these guidelines to ensure we work together effectively.

  • Hours: Monday – Friday, 8 AM – 5 PM (excluding most federal holidays).
  • Communication: Please use the email above for general inquiries. These are monitored by the full team and provide the fastest response.
  • Response Time: Please allow 24 to 48 business hours for replies.
  • Urgent Concerns: Always call the office directly; do not rely on email for emergencies.

  • Arrival: Please arrive at least 5 minutes early. Arrivals more than 10 minutes late will require rescheduling.
  • Cancellations: Notify us as soon as possible. Prepayment may be required after three missed or late-cancelled appointments.
  • Preparation: Fast your pet the morning of their visit.
    • If your pet is diabetic or you have concerns about fasting, please call us for specific instructions.
  • Medications: Continue all medications as prescribed unless directed otherwise.
    • If medications must be given with food, please call us for specific instructions.

 

To ensure your pet never runs out of medication, we recommend keeping a 7 – 10 day supply on hand at all times.

We are happy to interpret future testing from your primary care veterinarian; however, a diagnostic consultation fee will apply. This fee covers:

  • Detailed interpretation of results.
  • Formulation of a treatment plan.
  • Coordination and communication with all parties involved.

The Internal Medicine Service is unavailable outside of standard office hours. If your pet needs immediate attention:

  • Call the main hospital line or go directly to PVESC Emergency Service.
  • The emergency team will stabilize your pet.
  • They will coordinate directly with the Internal Medicine team as needed.

We are committed to compassionate, professional care and ask that all communication remains courteous.

  • Feedback: If your experience falls short of our standards, please contact our Team Advocate, Karla Rubin, at [email protected]

To help us create accurate and timely medical records, portions of your appointment may be audio recorded and securely processed using an AI‑assisted medical scribe. These recordings are used solely to improve efficiency and documentation quality. All assessments, diagnoses, and medical advice are made directly by the veterinary specialist. AI tools do not make clinical decisions or provide medical guidance.



For Veterinarians

Headshot of Dr. Nikita Kakar, DVM, DACVIM
Nikita Kakar, DVM, DACVIM

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Mary Lester, DVM, DACVIM

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