Gerontologist, Geriatrician, or Care Manager: Who Does What

Your mother’s doctor mentions a geriatrician. A friend recommends a geriatric care manager. Somewhere in a search you land on the word gerontologist. Three titles, two of them nearly identical to say out loud, and no obvious way to tell which one you need.

Here is the short answer. A geriatrician is a medical doctor who treats disease in older adults. A gerontologist is an expert in aging itself, everything beyond the diagnosis. An aging life care manager coordinates the moving pieces of care and is usually a nurse or social worker. You may need one of them, or two, or none, depending on what is actually going wrong.

I am a gerontologist, so let me be direct about what that does and does not mean, because the distinction matters more than most articles admit.

The quick version

Compare	Geriatrician	Gerontologist	Aging Life Care Manager
What it is	Medical specialty	Field of study	Care coordination profession
Training	MD or DO, residency, then a geriatrics fellowship	Degree in gerontology, bachelor’s through doctorate	Usually nursing or social work, plus certification
Licensed to diagnose or prescribe	Yes	No	No, unless separately licensed
Regulated by a state board	Yes	No	The underlying license is, the role is not
What they do	Diagnose, prescribe, manage complex medical care	Research, evaluate, advise, design programs	Assess, plan, coordinate, advocate
Medicare covers it	Yes, as a physician visit	No such provider category exists	No
Typical cost to you	Standard Part B cost sharing	Set privately	$150 to $300 per hour

The geriatrician

A geriatrician is a physician. Medical school, then a residency in internal medicine or family medicine, then a fellowship specifically in geriatric medicine, then board certification. They can diagnose, prescribe, and manage care the way any doctor can, with training focused on what changes in later life.

What they are unusually good at: medication review, and specifically taking medications away. Falls. Cognitive change. The tangle that happens when four specialists each treat one organ and nobody is looking at the whole person.

The American Geriatrics Society suggests seeing one when an older adult has weakness or frailty combined with something else, cognitive change, incontinence, depression, mobility trouble, or when care is spread across so many providers that no one has the full picture.

Here is the practical problem. There are fewer than 7,000 practicing geriatricians in the United States. More than 60 percent of U.S. counties have none at all. Between 2000 and 2022 the number of board-certified geriatricians fell by 28 percent while the population over 65 grew by 60 percent.

So the honest advice is: if you can get to one, do. If you cannot, that is common, and it is not your failure. Some of what a geriatrician does can be requested from a good primary care physician who is willing to slow down, particularly a full medication review.

A geriatrician visit is covered by Medicare Part B like any physician visit.

The gerontologist

This one is mine, and it is the profession most families have never been told about.

A geriatrician studies what disease does to an aging body. A gerontologist studies everything else about growing older: how the body changes, how the mind changes, how relationships, housing, money, policy, and technology shape a person’s later life. Gerontology is the whole picture of aging, and it is the discipline behind far more of the aging world than most people realize. The senior center programming that actually gets used, the dementia care model your hospital adopted, the research behind fall prevention guidelines, the design decisions that make a device usable by 80-year-old hands: there is usually a gerontologist somewhere in that story. We are the field working in the background of nearly everything built for older adults. Society mostly never learns our name for it.

You can earn a bachelor’s, master’s, or doctorate in gerontology, and programs are accredited. My own doctorate is in gerontology and leadership. Where geriatricians number under 7,000 for the whole country, gerontologists work across research, policy, program design, education, and practice, which means families can often reach one when a geriatrician is booked out or three counties away.

Now the part I tell every family myself, because an honest profession says it out loud. Gerontology is expertise, not a medical license. A gerontologist does not diagnose, treat, or prescribe, and no state licenses the title. When someone with a gerontology degree does clinical work, it is under a separate license they also hold. So when you hire one, ask the same questions you would ask anyone: what degree, from where, and what credentials. I welcome that question. My answer is a doctorate in gerontology and leadership and the CPG credential from the National Association for Professional Gerontologists, and any gerontologist worth hiring will answer just as plainly, including telling you when your problem is medical and belongs to a physician.

What a gerontologist gives a family is the expertise nobody else at the table has. How this condition actually changes a Tuesday. What is realistic in this house, with this person, with this family. Whether a technology will be used or end up in a drawer. Whether the plan on paper matches the life being lived. Physicians treat the disease. We understand the aging.

No Medicare category exists for a gerontologist. Any work is private pay, and a good one will tell you that before you ask.

The aging life care manager

You will also see this called a geriatric care manager. Same profession. The association renamed itself in 2015, and both terms are still in circulation, which does not help anyone.

These are usually nurses or social workers, and the good ones are extraordinary. They assess the situation, write a plan, coordinate between the hospital and the family and the home care agency, vet and monitor caregivers, handle the discharge nobody was ready for, and take the call at 2am.

One useful detail: the terms Aging Life Care Professional and Aging Life Care Manager are trademarked and restricted to members of the Aging Life Care Association, whose membership levels require specific degrees, supervised experience, and in some cases certification. Anyone at all can call themselves a “senior care advisor” or “geriatric care manager.” The trademarked version tells you something; the generic version tells you nothing.

Cost typically runs $150 to $300 an hour, with an initial assessment taking four to six hours. Medicare and Medicaid do not cover it. Some long-term care insurance policies partially do.

Which one do you actually need

Sort by what is going wrong, not by title.

“She is on eleven medications and something is off.” Geriatrician. This is the single clearest case, and medication review is where they shine.

“He is falling, or we are frightened he will.” Geriatrician first, for the medical causes, which are often medications, blood pressure, or vision. Then a gerontologist or occupational therapist for the home and the daily routine.

“We are drowning in coordination. Nobody talks to anybody.” Aging life care manager. But read the next section first, because you may be entitled to a covered version of this.

“Something is changing with her memory.” Start with the Medicare annual wellness visit, which includes a cognitive assessment at no cost to you. Then a geriatrician or neurologist.

“We bought her a smartwatch and a video doorbell and a pill dispenser and she uses none of it.” This one is mine, and I will come back to it below, with a real example.

“We have no idea where to start.” Call the Eldercare Locator at 1-800-677-1116. It is a free public service of the Administration for Community Living. Start there before you spend anything.

What Medicare covers that almost nobody tells you

This is the part I would most like families to take away, because I watch people pay privately for services they were already entitled to.

The yearly wellness visit costs you nothing if the provider accepts assignment, and the Part B deductible does not apply. It includes a medication review and a cognitive assessment. Many families do not use it.

Chronic Care Management is a covered Medicare benefit. If your parent has two or more serious chronic conditions expected to last a year or more, Part B covers monthly care management through their doctor’s office: a comprehensive care plan, 24/7 access for urgent needs, medication review, and support moving between care settings. Coinsurance applies after the deductible. This is care coordination, and it is covered, and it is delivered by the practice rather than a private manager.

If there is a dementia diagnosis, look at GUIDE. The Guiding an Improved Dementia Experience model launched in July 2024 and now runs through nearly 300 participating organizations. Eligible families get a dedicated care navigator, 24/7 support access, caregiver training, and respite services reimbursed up to $2,500 a year. For those who qualify, it is free.

None of this replaces a private care manager if you need that level of attention. But if you are about to spend $200 an hour on coordination, ask the doctor’s office about Chronic Care Management first.

One caution

Be careful with services that are “free” to you. Many senior placement and referral services are paid a commission by the communities and providers they place you into. That is not automatically disqualifying, and some are genuinely helpful. But you should know who is paying, because it shapes what you get recommended.

The same question is worth asking anyone, including me: how are you paid, and by whom.

Where technology fits, and where I fit

There is no licensed profession devoted to technology decisions for older adults. Gerontechnology is a field of study, not a job title, and no credentialing body certifies people to advise families on it. In practice this work lands with an occupational therapist, a home modification contractor, a care manager, or somebody like me.

What I do is narrow on purpose. I am a gerontologist, which means I cannot diagnose your mother or prescribe anything, and I will tell you when what you need is a physician. What I can do is sit in the actual house, watch how the day actually goes, and work out which technology fits this person’s hands, eyes, memory, routine, and dignity. Often the answer is less technology than the family expected. Sometimes the answer is none.

One client of mine, Susan, is 68, lifts weights, hikes, gardens, and runs her own household finances. By every marketing definition she is the target customer for wearables, voice assistants, and fall detection. We looked at all of it and recommended none of it. What she actually needed was a plan for her next chapter, a grip-strength tool that collects no data about her, and a meeting with her car dealer to shut off the tracking she never agreed to. The most useful thing I did for Susan was help her get technology out of her life, not into it. That is what an adviser with no products to sell looks like in practice. https://thegerontechnologygroup.com/susans-case-study/

I sell no products and take no commissions from any manufacturer. That is not a virtue, it is a structural choice, and it is the reason I can tell you a device is wrong for your mother when the company that makes it cannot.

If you want to see exactly how this works in a real house, I wrote a full walkthrough of what happens in a home technology assessment.

How to find each one

• Geriatrician: the American Geriatrics Society directory at healthinaging.org. Search by state first, then narrow.
• Aging life care manager: the Aging Life Care Association directory at aginglifecare.org.
• Anything at all, free: Eldercare Locator, 1-800-677-1116.