Nursing facilities in California cannot diagnose dementia on their own
A nursing facility staff member — whether a nurse, aide, or administrator — cannot give you a dementia diagnosis. Diagnosis requires a physician, neurologist, or geriatric psychiatrist, and that doctor must be licensed to practice medicine in California. A nursing home can observe symptoms, document changes in memory or behavior, and refer you to a doctor who can diagnose, but the facility itself cannot make the diagnosis official.
What a nursing facility can do is notice that something has changed. Staff may see confusion, repetition, difficulty with daily tasks, or mood shifts. They can write these observations in your medical record and recommend that you see a doctor. Many facilities have a medical director or contracted physician who visits regularly; that doctor can order tests and perform an evaluation. But even then, the diagnosis comes from the licensed physician, not from the facility as an institution.
Key Takeaways
- Only a licensed physician, neurologist, or geriatric psychiatrist can diagnose dementia in California — nursing facility staff cannot.
- Nursing homes must have a medical director or contracted physician who can order diagnostic tests and evaluations.
- If a facility notices memory loss or behavioral changes, they should refer you to a doctor and document their observations in your medical record.
- California law requires nursing facilities to notify you and your family if they suspect cognitive decline and recommend medical evaluation.
- You have the right to request a second opinion from any licensed physician outside the facility.
Who can legally diagnose dementia in a California nursing home
The person who diagnoses dementia must hold a medical license issued by the California Medical Board or the California Board of Psychology (for psychologists with the right credentials). This includes physicians (MDs and DOs), neurologists, geriatricians, geriatric psychiatrists, and some licensed clinical psychologists. They must perform or order cognitive testing, review medical history, and rule out other causes of memory loss before making a diagnosis.
Many nursing facilities have a medical director — a physician employed by or contracted with the home. This doctor may see residents regularly or on an as-needed basis. If the medical director suspects dementia, they can order tests such as cognitive screening tools, blood work, or imaging (CT or MRI) to look for other causes. The medical director can then make a diagnosis or refer you to a specialist outside the facility for further evaluation.
If the facility does not have a medical director available to evaluate you, or if you want an outside opinion, you can ask to see your own physician or a neurologist in the community. California law does not require you to use the facility's doctor for diagnosis.
What California law requires facilities to do when dementia is suspected
California nursing homes are regulated by the Department of Health Care Quality (formerly called the Department of Public Health, Licensing and Certification Division). These regulations require facilities to have a physician available and to may support that residents receive medical evaluation when needed. If staff observe signs of cognitive decline — confusion, memory loss, difficulty with self-care, or behavioral changes — the facility must document these observations and notify the resident and their family or representative.
The facility must also recommend that the resident see a physician for evaluation. This recommendation should be documented in writing in the resident's medical record. The facility cannot force you to see a doctor, but they must make the recommendation and give you the information you need to pursue it. If you are the resident's legal representative or family member, the facility should contact you directly.
Facilities must also may support that any physician they contract with is licensed and may have access to to evaluate residents. They cannot rely on unlicensed staff to make medical judgments about dementia or other conditions.
The difference between observation and diagnosis
Nursing facility staff observe residents every day. They see how someone performs routine tasks, whether they remember conversations from yesterday, whether they recognize family members, and how their mood or behavior has shifted. These observations are valuable and should be recorded in the medical record. But observation is not diagnosis.
A diagnosis requires a trained physician to interpret those observations alongside medical testing, medical history, and a physical examination. The doctor must also rule out other causes of memory loss — such as medication side effects, urinary tract infection, depression, thyroid problems, or vitamin deficiency — before concluding that dementia is present. This process takes time and informed that nursing facility staff, even experienced ones, are not trained or licensed to provide.
If a facility tells you "we have diagnosed dementia," that is a red flag. The correct statement would be "our medical director has diagnosed dementia" or "we recommend you see a doctor for evaluation." The distinction matters because it tells you whether a licensed physician has actually been involved.
How to request a diagnostic evaluation in a nursing facility
If you or a family member is in a California nursing facility and you suspect dementia, start by asking the facility administrator or nursing director to arrange an evaluation with the facility's medical director or contracted physician. Put your request in writing and keep a copy. Include specific examples of memory loss, confusion, or behavioral changes you have noticed, and the dates they began.
If the facility does not respond within a reasonable time (usually a few days), contact the facility's administrator in writing again. If the facility still does not arrange an evaluation, you can request that your own physician see you at the facility, or you can arrange to be transported to an outside clinic or hospital for evaluation.
You also have the right to file a complaint with the Department of Health Care Quality if you believe the facility is not providing adequate medical care. You can reach them through the state's Long-Term Care Ombudsman program, which investigates complaints about nursing homes and can advocate on your behalf.
Second opinions and outside evaluations
You are never required to accept a diagnosis made by a facility's medical director. If you want a second opinion, you can ask your personal physician, a neurologist, or a geriatric psychiatrist to evaluate you. Many people find it helpful to get a second opinion when dementia is suspected, especially if the diagnosis will affect major decisions about care or living situation.
Outside evaluations can be done at a hospital, clinic, or specialist's office. Some neurologists and geriatricians specialize in memory disorders and can provide thorough testing. If you are on Medicare or Medi-Cal, these services may be covered. Ask the facility to provide copies of all medical records, test results, and observations so the outside doctor has the full picture.
If you disagree with a diagnosis, or if you believe the facility is not providing appropriate care based on a diagnosis, you can also request a care plan meeting with the facility's interdisciplinary team. This team should include the medical director, nursing staff, social worker, and you or your representative. At this meeting, you can discuss your concerns and ask questions about the diagnosis and recommended care.
What happens after a dementia diagnosis in a nursing facility
Once a physician has diagnosed dementia, the nursing facility must update the resident's care plan to reflect the diagnosis and any changes in care needs. This might include modifications to the environment, changes in medication, increased supervision, or referrals to specialists such as a neurologist or geriatric psychiatrist for ongoing management.
The facility must also may support that staff are trained to care for residents with dementia. California regulations require facilities to provide training on dementia care, including how to communicate with residents who have memory loss, how to manage behavioral symptoms, and how to maintain dignity and safety.
You should receive a copy of the updated care plan and have the opportunity to discuss it with the facility team. If you disagree with the plan or believe it does not meet the resident's needs, you can request changes in writing.
Frequently Asked Questions
Can a nurse at a nursing home tell me my loved one has dementia?
A nurse can tell you that they have observed memory loss or confusion and recommend a doctor's evaluation, but they cannot make a dementia diagnosis. Only a licensed physician can diagnose dementia. If a nurse says "we think it's dementia," they mean the facility recommends medical evaluation — not that a diagnosis has been made.
What if the nursing facility's doctor and my personal doctor disagree about dementia?
You can ask both doctors to explain their findings and reasoning. You may also request a third evaluation from a neurologist or geriatric psychiatrist who specializes in memory disorders. Disagreements about diagnosis are not uncommon, and a specialist evaluation can help clarify the situation.
Does the nursing facility have to tell me if staff think a resident has dementia?
Yes. California law requires facilities to notify the resident and their family or representative if there are concerns about cognitive decline and to recommend medical evaluation. This notification should be documented in the medical record.
Can I refuse a dementia evaluation at a nursing facility?
Yes, you have the right to refuse medical evaluation. However, if you are a resident in a facility, refusing evaluation may affect the care plan and the facility's ability to meet your needs. If you lack decision-making capacity, your legal representative can make this decision for you.
How do I file a complaint if I think the nursing facility mishandled a dementia diagnosis?
Contact the Long-Term Care Ombudsman program through the California Department of Aging, or file a complaint directly with the Department of Health Care Quality. You can also contact your local Area Agency on Aging for guidance on how to proceed.