Geriatrics: Frequently Asked Questions

Geriatrics is the medical specialty focused on the health and care of adults aged 65 and older, with particular attention to the complex, multi-system challenges that arise as the body ages. This page addresses the most common questions about what geriatric medicine covers, how its practitioners operate, and what standards govern the field. The questions below draw on frameworks from the American Geriatrics Society (AGS), the American Board of Internal Medicine (ABIM), and federal agencies including the Centers for Medicare & Medicaid Services (CMS).

What should someone know before engaging?

Geriatrics is not simply internal medicine applied to older patients. It is a distinct subspecialty with fellowship training requirements, board certification pathways through the ABIM, and a clinical philosophy centered on function, quality of life, and goal-concordant care rather than disease-by-disease treatment alone.

Older adults — defined for clinical and regulatory purposes as those aged 65 and older — represent approximately 17% of the U.S. population (U.S. Census Bureau, 2023 National Population Estimates), yet they account for a disproportionate share of hospitalizations, prescription drug use, and long-term care expenditures. Understanding what geriatric medicine does, and does not, cover helps patients, families, and referring clinicians use the specialty appropriately.

The homepage for this resource provides a structured entry point to the full range of topics covered in geriatric medicine, from assessment tools to care transitions.

What does this actually cover?

Geriatric medicine addresses conditions and syndromes that are either unique to older adults or present differently in this population than in younger patients. The core clinical domains include:

  1. Geriatric syndromes — falls, delirium, frailty, incontinence, and pressure injuries
  2. Cognitive health — dementia, mild cognitive impairment, and cognitive screening using tools like the MMSE and MoCA
  3. Polypharmacy — the risks and management of patients taking 5 or more medications simultaneously
  4. Functional status — assessment of activities of daily living (ADLs) and instrumental ADLs (IADLs)
  5. Psychosocial health — depression, social isolation, and caregiver burden
  6. End-of-life and advance care planning — goals of care, hospice, and palliative medicine

A comprehensive geriatric assessment integrates all these domains into a structured evaluation, distinguishing geriatric care from single-condition management.

What are the most common issues encountered?

The AGS and the British Geriatrics Society both identify a consistent cluster of high-priority problems in older adult care. Falls and fall prevention rank among the most clinically urgent: the Centers for Disease Control and Prevention (CDC) reports that falls are the leading cause of fatal and nonfatal injuries in adults aged 65 and older, with approximately 36 million falls occurring annually in the U.S. (CDC, STEADI Initiative).

Dementia and cognitive decline affect an estimated 6.9 million Americans aged 65 and older, according to the Alzheimer's Association 2024 Facts and Figures report. Polypharmacy and medication management, osteoporosis and fracture risk, malnutrition, sarcopenia, and depression and anxiety in older adults round out the conditions most frequently driving geriatric referrals.

Delirium — acute confusion that is distinct from dementia — is a serious, often underrecognized hospital complication affecting 14% to 56% of hospitalized older adults (Hospital Elder Life Program, Yale School of Medicine).

How does classification work in practice?

Geriatric conditions are classified using validated instruments and frameworks rather than purely diagnostic labels. The most widely used organizing schema is the "Geriatric Giants" concept, attributed to Bernard Isaacs, which groups functional threats into falls, incontinence, immobility, and intellectual impairment.

For regulatory and billing purposes, CMS classifies geriatric care encounters under distinct Current Procedural Terminology (CPT) codes and uses the Minimum Data Set (MDS) to classify nursing home residents by functional, cognitive, and medical status under the Patient-Driven Payment Model (PDPM).

Frailty, a distinct clinical state from disability or comorbidity, is classified using instruments such as the Fried Frailty Phenotype (measuring 5 criteria: weight loss, exhaustion, low physical activity, slowness, and weakness) or the Rockwood Clinical Frailty Scale, a 9-point ordinal scale (Rockwood et al., CMAJ, 2005). A frailty assessment typically precedes major surgical or procedural decisions in older patients.

What is typically involved in the process?

A geriatric evaluation follows a structured, multidimensional sequence:

  1. Referral or self-presentation — triggered by functional decline, polypharmacy, falls, or cognitive concerns
  2. Comprehensive Geriatric Assessment (CGA) — a multi-domain evaluation covering medical, functional, cognitive, social, and environmental factors
  3. Functional status assessment — standardized ADL/IADL tools such as the Katz Index or Lawton Scale
  4. Fall risk assessment — including gait speed, the Timed Up and Go (TUG) test, and environmental evaluation
  5. Medication review — applying criteria such as the Beers Criteria (AGS) or STOPP/START criteria to identify inappropriate prescriptions
  6. Nutritional screening — using instruments like the Mini Nutritional Assessment (MNA)
  7. Care planning — coordinated with a geriatric care team that may include physicians, nurses, social workers, pharmacists, and physical therapists
  8. Follow-up and monitoring — with attention to advance care planning and goals-of-care documentation

Geriatric rehabilitation may follow hospitalization or acute illness to restore baseline function.

What are the most common misconceptions?

Misconception 1: Geriatrics and gerontology are the same.
Geriatrics is a medical and clinical discipline; gerontology is the broader scientific study of aging, encompassing biological, psychological, and social dimensions. A geriatrician holds a medical degree and subspecialty certification; a gerontologist may hold a graduate degree in social science or public health.

Misconception 2: Geriatric care is synonymous with nursing home care.
Geriatricians practice across inpatient, outpatient, home-based, and long-term care settings. Long-term care options represent one segment of the care continuum, not the defining context of the specialty.

Misconception 3: All older adults need a geriatrician.
Primary care physicians manage the majority of older adults without subspecialty involvement. Geriatric referral is most warranted when complexity — measured by the number of active conditions, medications, or functional deficits — exceeds what a single-provider model can safely coordinate. Signs that an older adult should see a geriatrician include recurrent falls, 10 or more concurrent medications, or significant unexplained functional decline.

Misconception 4: Memory loss is a normal part of aging.
Age-associated mild forgetfulness differs clinically from dementia or pathological cognitive decline, which require formal evaluation and are not inevitable outcomes of aging.

Where can authoritative references be found?

Primary references for geriatric medicine standards include:

For practitioners pursuing subspecialty training, the geriatric medicine fellowship pathway is governed by the Accreditation Council for Graduate Medical Education (ACGME) under program requirements published at www.acgme.org.

How do requirements vary by jurisdiction or context?

Geriatric medicine practice requirements vary across clinical settings, state regulations, and payer frameworks:

Licensing and certification: Board certification in geriatric medicine through the ABIM requires prior certification in internal medicine and completion of a 1-year ACGME-accredited fellowship. The American Board of Family Medicine (ABFM) offers a parallel pathway for family physicians. Geriatric psychiatry fellowship training follows a separate ACGME certification track under psychiatry.

State variation in scope of practice: Nurse practitioners and physician assistants practicing in geriatric settings are subject to state-specific scope-of-practice laws, which determine the degree of physician oversight required. 23 states and the District of Columbia permit full practice authority for nurse practitioners without mandatory physician collaboration agreements (American Association of Nurse Practitioners, 2023).

Long-term care regulation: Nursing facilities certified by CMS must comply with the Requirements of Participation (42 CFR Part 483), which mandate comprehensive resident assessments, care planning processes, and quality-of-care standards directly aligned with geriatric medicine principles.

Palliative and hospice care: Palliative care and hospice care operate under distinct regulatory frameworks. Hospice is a Medicare benefit (Medicare Benefit Policy Manual, Chapter 9) requiring physician certification of a terminal prognosis of 6 months or fewer if the disease follows its expected course. Palliative care has no equivalent federal certification threshold and can be delivered alongside curative treatment at any stage of illness.

Advance directives: Advance directives and living wills are governed by individual state statutes; forms valid in one state may not be automatically honored in another, though the Patient Self-Determination Act of 1990 requires federally funded facilities to inform patients of their advance directive rights.

The law belongs to the people. Georgia v. Public.Resource.Org, 590 U.S. (2020)