What types of cancer treatments does Treeline Veterinary Cancer Care offer?

Treeline Veterinary Cancer Care provides various treatments including chemotherapy, targeted therapy, and immunotherapy. Chemotherapy is administered intravenously or orally, often for cancers like Lymphoma, Osteosarcoma, and Mast Cell Tumors. Immunotherapy options include cancer vaccines such as ONCEPT® for melanoma, and Gilvetmab for melanoma and mast cell tumors. They also offer the Stelfonta® injection for qualifying Mast Cell Tumor patients.

Does Treeline Veterinary Cancer Care offer radiation therapy for pets?

Treeline Veterinary Cancer Care does not directly provide radiation therapy. However, they offer consultations to discuss which cancers are most likely to respond to radiation. The clinic can also help facilitate appointments for pets at other radiation facilities in the area. Following radiation treatment elsewhere, Treeline provides long-term support, cancer monitoring, and restaging services.

Who are the board-certified veterinary oncologists at Treeline Veterinary Cancer Care?

The clinic features Dr. Karen Oberthaler, a co-founder and board-certified veterinary oncologist, who is a diplomate of the American College of Veterinary Internal Medicine in Oncology. Additionally, Dr. Marie Janson is a board-certified veterinary oncologist (DACVIM Oncology) with over 18 years of experience, holding a special interest in Integrative oncology and certification in Veterinary Acupuncture.

What diagnostic services are available for pets with cancer at Treeline Veterinary Cancer Care?

Treeline Veterinary Cancer Care offers a range of diagnostic and screening tests. These include state-of-the-art in-house laboratory tests, microscopic evaluation of blood and tumor cells, flow cytometry, cytology, genetic testing, ultrasound, and radiography. These diagnostics are utilized during initial consultations and throughout the pet's treatment journey to inform care decisions.

What is Dr. Marie Janson's specialized approach to oncology?

Dr. Marie Janson, a board-certified veterinary oncologist at Treeline Veterinary Cancer Care, has a special interest in Integrative oncology. This approach combines traditional treatment options with complementary therapies. She has pursued additional training in Traditional Chinese Medicine, natural nutrition, and nutritional supplements, and holds a Certification in Veterinary Acupuncture. Her goal is to offer innovative conventional and holistic options to improve cancer patients' quality of life.

TREELINE VETERINARY CANCER CARE

Veterinary Oncology · Boulder, CO

TREELINE VETERINARY CANCER CARE is a general practice practice in Boulder, CO, led by a DACVIM-credentialed specialist. Procedures include Chemotherapy, Targeted therapy, Immunotherapy, and Cancer diagnostics.

Get Directions View on Maps ↗ Call (720) 432-8680 Book Consultation

About

Treeline Veterinary Cancer Care specializes in oncology for pets, offering advanced and compassionate cancer consultations and treatments in Boulder, Colorado. The clinic provides chemotherapy, targeted therapy, and immunotherapy, including specific treatments like Stelfonta® for Mast Cell Tumors and ONCEPT® for melanoma. Diagnostic capabilities include in-house lab tests, flow cytometry, cytology, genetic testing, ultrasound, and radiography. The practice emphasizes a personalized, intimate, and locally-owned approach, distinct from corporate or private equity models.

The clinic serves dogs and cats, working closely with families and their primary veterinarians to educate them on diagnostic and treatment options. While Treeline does not directly offer radiation therapy, they provide consultations and facilitate appointments at other radiation facilities, continuing long-term support and monitoring. The team includes multiple board-certified veterinary oncologists and certified veterinary technicians, focusing on improving the quality of life for pets with cancer.

Surgical team

Dr. Karen Oberthaler, DVM

DACVIM (Oncology)

University of Pennsylvania School of Veterinary Medicine (magna cum laude) · Internship at the Animal Medical Center, New York City · Oncology residency at UPenn · 20+ years of clinical oncology experience.

Procedures

Chemotherapy
Targeted therapy
Immunotherapy
Cancer diagnostics
Radiation therapy consultations
Telemedicine consultations

Photos

Treeline Veterinary Cancer Care clinic, Boulder CO

Treeline Veterinary Cancer Care clinic interior

Treeline Veterinary Cancer Care facility

Photos via Google · TREELINE VETERINARY CANCER CARE, Michael Hardin

Frequently asked questions

What types of cancer treatments does Treeline Veterinary Cancer Care offer?: Treeline Veterinary Cancer Care provides various treatments including chemotherapy, targeted therapy, and immunotherapy. Chemotherapy is administered intravenously or orally, often for cancers like Lymphoma, Osteosarcoma, and Mast Cell Tumors. Immunotherapy options include cancer vaccines such as ONCEPT® for melanoma, and Gilvetmab for melanoma and mast cell tumors. They also offer the Stelfonta® injection for qualifying Mast Cell Tumor patients.
Does Treeline Veterinary Cancer Care offer radiation therapy for pets?: Treeline Veterinary Cancer Care does not directly provide radiation therapy. However, they offer consultations to discuss which cancers are most likely to respond to radiation. The clinic can also help facilitate appointments for pets at other radiation facilities in the area. Following radiation treatment elsewhere, Treeline provides long-term support, cancer monitoring, and restaging services.
Who are the board-certified veterinary oncologists at Treeline Veterinary Cancer Care?: The clinic features Dr. Karen Oberthaler, a co-founder and board-certified veterinary oncologist, who is a diplomate of the American College of Veterinary Internal Medicine in Oncology. Additionally, Dr. Marie Janson is a board-certified veterinary oncologist (DACVIM Oncology) with over 18 years of experience, holding a special interest in Integrative oncology and certification in Veterinary Acupuncture.
What diagnostic services are available for pets with cancer at Treeline Veterinary Cancer Care?: Treeline Veterinary Cancer Care offers a range of diagnostic and screening tests. These include state-of-the-art in-house laboratory tests, microscopic evaluation of blood and tumor cells, flow cytometry, cytology, genetic testing, ultrasound, and radiography. These diagnostics are utilized during initial consultations and throughout the pet's treatment journey to inform care decisions.
What is Dr. Marie Janson's specialized approach to oncology?: Dr. Marie Janson, a board-certified veterinary oncologist at Treeline Veterinary Cancer Care, has a special interest in Integrative oncology. This approach combines traditional treatment options with complementary therapies. She has pursued additional training in Traditional Chinese Medicine, natural nutrition, and nutritional supplements, and holds a Certification in Veterinary Acupuncture. Her goal is to offer innovative conventional and holistic options to improve cancer patients' quality of life.

Contact & hours

Address

659 S Broadway
Boulder, CO 80305

Phone

(720) 432-8680

Hours

By appointment Mon–Fri

Accepting

Referrals from primary care vets

Website

treelinevet.com

5.0 · 94 Google reviews

Recent reviews

5 months ago

Caleb Jares

Treeline is the second oncologist I visited after learning Blue had lymphoma. I didn't expect much. I'd already done my research and the first oncologist confirmed everything I knew. But the first oncologist didn't feel right. Dr O was much more empathetic and it felt like she was willing to do more to help Blue. They treat my pup so well here. I want blue's treatment to be done by someone who loves him and it definitely feels like the treeline staff is obsessed with Blue! I love how personal the treatment feels. I can text them and they respond quickly. They are always texting asking how he's feeling. They dress him up (so cute) and send photos. They spend plenty of time with me and answer all my questions. And when he's undergoing treatment they cuddle him 🥰 They have a second oncologist who's specialized in naturalistic and eastern medicine. I wanted to do everything possible for Blue so I did meet with her to talk about supplements and I thought that was a nice option to have. Finally, Dr O told me about a lesser-known treatment called bone marrow transplants. While most canine lymphoma treatment is temporary, there are two ventets located in the US that are curing the disease. She worked with me to customize blue's treatment to prepare him for this. They even had to stay open late one day to give him a non-standard high dose chemo that lasted all day. Blue is currently doing his bone marrow transplant and it's crazy to say, but I miss visiting treeline!
5 months ago

Alison Hughes

When we found out our dog had Lymphoma, the situation was urgent because she was showing signs of blindness. Her diagnosis came over a holiday weekend and we were struggling to find her the immediate care she needed. Thank goodness for the kind folks at Treeline Vet Cancer care! They responded immediately and prioritized us to be seen on Monday morning when no one else was available. Our dog fully regained her vision in 48 hours and already had significant relief from other symptoms within days. Treeline is great because they take the time to explain all the treatment options and help you find the right ones for your family that fit your budget. When you’re going through such a difficult time, it’s so reassuring to have such knowledgeable and caring professionals to help you through it. We are now at about 6 months since the diagnosis and our dog is still doing great with a high quality of life. Our dog loves going to see the folks at Treeline and greets them like they are family because they treat her so well (this is the dog that normally hates the vet!)
4 months ago

Kyla Pearce

I’ve been taking my kitty Phoebe to Treeline for chemo after she was diagnosed with pancreatic cancer. The staff have been so wonderful and kind and Dr. Oberthaler is simply the best (and the office is so comforting.) They’ve explained everything thoroughly, helped me understand my options and how best to help my baby and I’m so grateful that they exist.

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3 months ago

cbennett625

Bodhi was diagnosed with cancer a year ago. We found the care team at Treeline to always be very sweet, caring and responsive. As you can imagine, it’s been a long heart breaking journey but Treeline has always been available to answer our questions and see Bodhi short notice. We feel grateful to have found them.
3 months ago

S McKenna

Treeline Cancer Care isn't just a clinic; it is a sanctuary of gifted healers. When our 11-year-old Golden Retriever, Kenya, was diagnosed with osteosarcoma, it felt as though our world had come to a standstill. But walking into Treeline changed everything. Instead of a cold, clinical hospital, we found a place filled with warmth, soft beds, and a genuine sense of peace that made us feel certain she was in the best possible hands. Because of this team, Kenya didn't just survive; she thrived for nearly two years. This was way past the prognosis that was given to her when she was diagnosed originally, based on the type of aggressive cancer she had. That time was a gift we never expected, and it was a total success. Dr. Janson was Kenya's primary doctor, and I truly struggle to find words beautiful enough to describe her. She has this calming energy and a deeply intuitive approach, and she fought right alongside our girl with such relentless devotion and kindness. Thank you, Dr. Janson, for never giving up on our girl. You were her champion. We also owe so much to Dr. Oberthaler and the entire staff, who are simply amazing. They didn't just "treat" Kenya, they loved her. They knew her name, celebrated her milestones like they were their own, and looked after her with a rare kind of compassion. Kenya was a brave warrior with a larger-than-life spirit, and it was her incredible heart combined with the "above and beyond" care from this team that allowed her to truly beat the odds. I want everyone who reads this to know that even with an osteosarcoma diagnosis at age 11, she continued to fight every single day because of the support she had here. She remained a fierce fighter until the very end, wagging her tail and showing that beautiful spirit even in her final days. Treeline didn't just provide treatment; they fought alongside her, believed in her, and with everyone fighting her fight with her, she kept that strength to keep being the warrior we knew and loved. If you love your pet and want them in hands that are as capable as they are kind, Treeline is the place. They gave us the greatest gift of all, which was more time and a beautiful quality of life with our precious girl, and for that, we are forever grateful.

Reviews via Google

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ChemotherapyTargeted TherapyImmunotherapyDACVIM