Professions in the Health Field You've Never Heard Of — From Heart Perfusionists to Dosimetrists
11 Jul, 2026
When most people think about healthcare careers, they picture doctors and nurses. But the industry is vast, and some of the most rewarding roles fly under the radar. If you've been researching what a phlebotomist does, or you've stumbled across terms like MSL liaison or wondered about becoming an art therapist, you're already looking beyond the obvious — and that's exactly where opportunity lives.
I've spent years helping healthcare job seekers on healthcareers.app find roles that match not just their skills, but their personalities, timelines, and life goals. One thing I've noticed is that candidates often get stuck comparing completely different paths without a clear framework. Should you pursue a role you can start in months, or invest years in a career with a higher ceiling? Do you want direct patient contact every day, or would you rather work behind the scenes shaping how treatments reach the market?
In this post, I'm going to break down three distinct healthcare careers — phlebotomist, medical science liaison, and art therapist — side by side. These roles couldn't be more different in training requirements, daily responsibilities, and compensation, yet they all share something important: they're genuinely impactful, growing fields within healthcare that offer fulfilling work for the right person.
A phlebotomist is the healthcare professional who draws your blood. That sounds simple, but the role involves much more than finding a vein. Phlebotomists are responsible for properly identifying patients, selecting the right collection tubes, maintaining strict infection control protocols, labeling specimens accurately, and ensuring samples reach the lab in viable condition. A single mislabeled tube can lead to a misdiagnosis, so precision matters enormously.
Phlebotomists work in hospitals, outpatient clinics, diagnostic laboratories, blood donation centers, and even mobile health units that serve rural communities. Some specialize in pediatric draws or work with patients who have difficult venous access, which requires advanced technique and exceptional bedside manner.
One of the most appealing aspects of this career is the low barrier to entry. Most phlebotomist training programs take between four weeks and six months to complete, and many community colleges and vocational schools offer them at affordable tuition rates. While certification isn't legally required in every state, earning credentials from organizations like the American Society for Clinical Pathology or the National Healthcareer Association significantly improves your job prospects and starting pay.
For someone looking to enter healthcare quickly — perhaps while pursuing further education — phlebotomy offers a practical, respected entry point. I've seen many candidates on our platform use phlebotomy as a stepping stone toward careers in nursing, medical laboratory science, or even physician assistant programs.
The Bureau of Labor Statistics projects faster-than-average growth for phlebotomists through the end of the decade, driven by an aging population that requires more diagnostic testing. Compensation varies by region and setting, but this is a role where you can find stable, full-time employment relatively quickly after training. Many phlebotomists also pick up per diem shifts at multiple facilities, which adds both income and scheduling flexibility.
The term MSL liaison — more formally, medical science liaison — refers to a specialized professional who serves as the scientific bridge between pharmaceutical or biotech companies and the medical community. MSLs don't sell products. Instead, they engage with key opinion leaders (KOLs), academic researchers, and healthcare providers to discuss clinical data, facilitate research collaborations, and provide scientific education about therapeutic areas.
This is a field-based role, meaning MSLs travel extensively to meet with physicians and attend medical conferences. A typical week might include presenting new clinical trial data to an oncologist at a major academic medical center, supporting an investigator-initiated study proposal, and attending an advisory board meeting. The work is intellectually demanding and highly autonomous.
Unlike phlebotomy, the MSL path requires significant educational investment. Most MSL positions require an advanced degree — a PharmD, PhD, MD, or occasionally a master's degree in a scientific discipline. Beyond credentials, companies look for candidates who can translate complex scientific data into clear, compelling narratives for clinician audiences.
Breaking into the MSL field without prior industry experience can be challenging. I recommend that aspiring MSLs build their candidacy through fellowship programs (several pharmaceutical companies offer MSL fellowships), postdoctoral research with industry relevance, or clinical practice in a therapeutic area of interest. Networking at medical affairs conferences and joining organizations like the MSL Society can also open doors.
As the pharmaceutical pipeline becomes more complex — with cell and gene therapies, precision medicine, and novel biologics entering the market — companies need scientifically credentialed professionals who can have peer-level conversations with prescribers. The MSL role has expanded significantly over the past decade, and industry sources consistently note strong demand across oncology, immunology, rare diseases, and neurology therapeutic areas. Compensation for MSLs tends to be among the highest in non-physician healthcare careers, reflecting the advanced education and expertise required.
Art therapy is a licensed mental health profession that uses creative processes — drawing, painting, sculpture, collage, and other media — to help clients explore emotions, reduce anxiety, process trauma, and develop coping skills. It's not arts and crafts hour. Art therapists are trained clinicians who integrate psychological theory with artistic practice to facilitate genuine therapeutic outcomes.
Art therapists work with remarkably diverse populations: children with autism, veterans with PTSD, older adults with dementia, individuals recovering from substance use disorders, and patients in oncology units navigating the emotional weight of their diagnoses. The settings are equally varied, from psychiatric hospitals and schools to private practices and community wellness centers.
Becoming an art therapist requires a master's degree in art therapy or a closely related field from a program approved by the American Art Therapy Association. Most programs take two to three years and include extensive supervised clinical hours — typically around 600 hours of practicum experience during training, followed by additional postgraduate supervised hours before you can pursue full credentials.
Licensure requirements vary significantly by state. Some states have specific art therapy licensure, while others require art therapists to hold a general counseling or professional counselor license. I always encourage candidates on healthcareers.app to research their specific state's requirements early, because this can affect which graduate programs are the best fit.
A strong undergraduate foundation in both studio art and psychology is ideal, though many programs accept students from diverse academic backgrounds who can demonstrate competency in both areas.
The mental health field broadly is experiencing significant demand growth, and art therapy is benefiting from this trend. As healthcare systems increasingly recognize the value of integrative and holistic approaches to mental health treatment, art therapists are finding opportunities in settings that didn't traditionally employ them. Research published through institutions like the National Institutes of Health has explored the efficacy of art-based interventions for conditions ranging from depression to chronic pain, lending growing clinical credibility to the field.
That said, art therapy remains a smaller profession compared to traditional counseling or social work, so job seekers may need to be geographically flexible or entrepreneurial — many art therapists build successful private practices or contract with multiple organizations.
Here's a quick framework to help you think through which path might align with your goals:
I've guided countless job seekers through this kind of decision, and I've found that the most important question isn't "which career pays the most" or "which is easiest to break into." The question that actually matters is: What kind of daily work energizes you rather than drains you?
If you love structure, precision, and making a tangible difference in diagnostic care, phlebotomy might be your ideal starting point. If you're passionate about the intersection of science and business and you already hold an advanced degree, pursuing an MSL liaison role could leverage your education in a uniquely rewarding way. And if you're a creative person who's drawn to mental health work and willing to invest in graduate training, becoming an art therapist could be one of the most fulfilling careers you'll ever pursue.
There's no wrong answer — only the answer that fits your life right now and the direction you want to grow.
Absolutely. Phlebotomy is one of the most accessible entry points into healthcare. Most training programs accept students with a high school diploma or GED and no prior clinical experience. The programs are designed to teach you everything from anatomy relevant to venipuncture to proper specimen handling protocols. Many of our users on healthcareers.app started their healthcare journeys in exactly this role.
This is one of the most common misconceptions I encounter. An MSL liaison is a non-promotional, science-focused role. MSLs do not carry sales quotas or promote products. Their job is to engage with the medical community as scientific peers, sharing clinical data and supporting research. Sales representatives, by contrast, have commercial objectives and promote approved products to prescribers. The distinction is important both ethically and regulatorily within the pharmaceutical industry.
That depends on what "worth it" means to you. If your primary metric is financial return on investment, you should know that art therapy compensation tends to be moderate compared to some other master's-level healthcare professions. However, if you value meaningful therapeutic relationships, creative work, and the ability to help people heal in nontraditional ways, many art therapists describe their careers as deeply fulfilling. The growing recognition of art therapy within healthcare systems is also expanding employment opportunities.
In theory, yes, though the paths are quite different. Moving from phlebotomy to an MSL role would require completing an advanced scientific degree and gaining expertise in a therapeutic area. Transitioning to art therapy would mean pursuing a master's degree in art therapy with the prerequisite studio art and psychology coursework. Phlebotomy experience demonstrates comfort in clinical settings and with patient interaction, which is valuable in any healthcare career, but significant additional education would be needed for either transition.
All three are in growing fields, but for different reasons. Phlebotomy benefits from high volume demand driven by an aging population and expanded diagnostic testing. MSL roles are growing because of the increasingly complex pharmaceutical pipeline. Art therapy is growing alongside the broader expansion of mental health services. The Bureau of Labor Statistics and industry reports consistently highlight healthcare as one of the strongest sectors for job growth overall, and these three roles each tap into distinct aspects of that growth.
Healthcare is not a monolith. It's a sprawling ecosystem of roles that require vastly different skills, educational investments, and personality types. Whether you're drawn to the hands-on precision of a phlebotomist, the scientific depth of an MSL liaison, or the creative healing power of art therapy, there's a place for you. We built healthcareers.app to help you find that place — with job listings, career resources, and guidance tailored to every corner of the healthcare workforce. Whatever path you choose, the fact that you're researching your options thoughtfully puts you ahead of the curve. Your next step is out there.
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