Audiologist vs. ENT vs. Hearing Aid Specialist: Who Should You See?
Three different professions sell hearing aids, and one of them is a medical doctor. Audiologists evaluate hearing and fit hearing aids. ENTs (ear, nose, and throat doctors) are physicians who diagnose and treat ear disease. Hearing aid specialists fit and sell hearing aids but do not evaluate ear health. Knowing which one to see depends on whether you need medical clearance, diagnostic testing, or just a hearing aid fitting.
Key takeaways
- Audiologists (Au.D.) are doctoral-level professionals who evaluate hearing, fit hearing aids, and provide diagnostic and rehabilitative audiology services.
- ENTs (otolaryngologists, M.D. or D.O.) are physicians who diagnose and treat medical and surgical conditions of the ear, nose, and throat. They can refer to audiology for hearing aids.
- Hearing aid specialists (HIS) are state-licensed professionals who test hearing and fit and sell hearing aids but do not perform diagnostic audiology or medical evaluations.
- See an ENT first if you have red-flag symptoms: sudden hearing loss, one-sided loss, ear pain, drainage, dizziness, or sudden-onset tinnitus.
- For gradual, symmetric, age-related hearing loss, start with an audiologist or HIS. Costco hearing aid centers (HIS-staffed) provide high-quality fittings at lower cost for appropriate candidates.
If you need hearing aids, you have three types of professionals to choose from: audiologists, ENTs (ear, nose, and throat doctors), and hearing aid specialists. All three can help you get hearing aids, but their training, scope of practice, and typical roles differ. Knowing which one to see depends on whether you need medical evaluation, diagnostic testing, or a straightforward hearing aid fitting.
Three professions, three roles
- Audiologist (Au.D., Doctor of Audiology): A licensed health care professional with a doctoral degree in audiology (4 years post-bachelor's). Audiologists evaluate hearing, perform diagnostic tests, fit and program hearing aids, provide aural rehabilitation, manage tinnitus, and perform vestibular (balance) testing. They cannot prescribe medication or perform surgery.
- ENT (otolaryngologist, M.D. or D.O.): A physician who specializes in the diagnosis and treatment of medical and surgical conditions of the ear, nose, and throat. ENTs complete medical school (4 years) plus residency (5 years). They diagnose and treat ear infections, tumors, sudden hearing loss, balance disorders, and other ear disease. Many ENTs employ audiologists in their practices or refer patients to audiology for hearing testing and hearing aids.
- Hearing aid specialist (HIS, also called hearing instrument specialist or hearing aid dispenser): A state-licensed professional who tests hearing and fits and sells hearing aids. Training requirements vary by state but are typically shorter than audiology (often 2 years of coursework or an apprenticeship plus a state licensing exam). HIS professionals focus specifically on hearing testing and hearing aid sales and do not perform diagnostic audiology or medical evaluations.
Side-by-side comparison
| Audiologist (Au.D.) | ENT (M.D./D.O.) | Hearing Aid Specialist (HIS) | |
|---|---|---|---|
| Degree and training | Doctor of Audiology (Au.D.), 4 years post-bachelor's, clinical externship | Medical Doctor (M.D.) or Doctor of Osteopathic Medicine (D.O.), medical school + 5-year residency | State licensing requirements (typically 2 years coursework or apprenticeship + exam) |
| Licensed by | State audiology board | State medical board | State hearing aid dispenser board (varies by state) |
| Can perform hearing tests | Yes (comprehensive diagnostic audiology) | Yes (often delegates to audiologist) | Yes (basic hearing tests for hearing aid fitting) |
| Can fit hearing aids | Yes | Yes (many refer to audiologist or HIS) | Yes |
| Can diagnose ear disease | No (trained to recognize and refer) | Yes | No (trained to recognize and refer) |
| Can prescribe medication | No | Yes | No |
| Can perform surgery | No | Yes | No |
| Vestibular (balance) testing | Yes | Yes (often delegates to audiologist) | No |
| Tinnitus management | Yes | Yes (diagnosis and medical treatment; may refer for tinnitus therapy) | Limited (can fit tinnitus masking features in hearing aids) |
| Typical setting | Private practice, ENT office, hospital, university clinic | Private practice, hospital, surgery center | Private practice, retail (e.g., Costco, Sam's Club), hearing aid chains |
| Typical cost for hearing aid fitting | $1,400–$7,000 per pair (includes devices, fitting, follow-up) | Same as audiologist if ENT fits directly; usually refers | $1,200–$4,000 per pair (often lower, especially at Costco) |
Audiologist (Au.D.)
Audiologists are doctoral-level hearing health care professionals. The standard entry-level degree is the Doctor of Audiology (Au.D.), which requires a bachelor's degree plus 4 years of graduate study and a clinical externship. Audiologists are licensed by state audiology boards and certified by the American Board of Audiology (ABA) or American Speech-Language-Hearing Association (ASHA).
What audiologists do
- Comprehensive hearing evaluation: Audiometry (pure-tone and speech testing), tympanometry, acoustic reflex testing, otoacoustic emissions (OAE), and auditory brainstem response (ABR) for diagnostic purposes.
- Hearing aid fitting and programming: Select, fit, program, and verify hearing aids using real-ear measurement (REM). Provide follow-up adjustments and long-term care.
- Aural rehabilitation: Counseling, communication strategies, and auditory training to help patients adapt to hearing aids and maximize benefit.
- Tinnitus management: Evaluation and treatment of tinnitus using sound therapy, counseling, and tinnitus maskers.
- Vestibular (balance) testing: Evaluate dizziness and balance disorders using videonystagmography (VNG), rotary chair, and vestibular evoked myogenic potentials (VEMP).
- Pediatric audiology: Newborn hearing screening, diagnostic testing for infants and children, and hearing aid fitting for children.
When to see an audiologist
See an audiologist if:
- You have gradual, symmetric hearing loss consistent with aging or noise exposure and want a comprehensive hearing evaluation and hearing aid fitting.
- You need diagnostic audiology services (e.g., to determine the type and degree of hearing loss or to evaluate tinnitus).
- You need vestibular (balance) testing for dizziness or vertigo.
- You want hearing aid fitting with real-ear verification and comprehensive follow-up care.
ENT (otolaryngologist)
An ENT (otolaryngologist) is a physician who specializes in the medical and surgical treatment of the ear, nose, and throat. ENTs complete 4 years of medical school plus a 5-year residency in otolaryngology. Many ENTs subspecialize further (e.g., otology/neurotology focuses specifically on the ear and skull base).
What ENTs do
- Diagnose and treat ear disease: Ear infections, perforated eardrum, cholesteatoma, otosclerosis, Meniere's disease, acoustic neuroma, and other ear pathology.
- Sudden hearing loss evaluation: Sudden sensorineural hearing loss (SSNHL) is a medical emergency requiring prompt evaluation and treatment (often corticosteroids). ENTs are the appropriate specialist for SSNHL.
- Surgery: Tympanoplasty (eardrum repair), mastoidectomy, stapedectomy (for otosclerosis), cochlear implant surgery, and tumor removal.
- Medical management: Prescribe antibiotics, steroids, and other medications for ear conditions.
- Refer to audiology: Many ENTs refer patients to audiologists for hearing testing, hearing aids, and vestibular testing rather than providing these services in-house.
When to see an ENT
See an ENT (or ask your primary care doctor for a referral) if you have:
- Sudden hearing loss (within days to weeks). This is a medical emergency. See the red-flag symptoms in our hearing loss signs guide.
- One-sided (unilateral) hearing loss or tinnitus. Can indicate acoustic neuroma or other asymmetric pathology requiring imaging and specialist evaluation.
- Ear pain, drainage, or fullness. May indicate infection, impacted wax, or middle ear fluid requiring medical treatment.
- Dizziness or vertigo. ENTs evaluate balance disorders and work with audiologists for vestibular testing.
- Suspected middle ear or structural problem. Conductive hearing loss (earwax, fluid, eardrum perforation, ossicular chain damage) may be treatable medically or surgically.
For more on red-flag symptoms requiring prompt medical evaluation, see the FDA's guidance in our OTC vs. prescription comparison and the sudden-loss section in our signs of hearing loss guide.
Hearing aid specialist (HIS)
A hearing aid specialist (also called hearing instrument specialist or hearing aid dispenser) is a state-licensed professional who tests hearing and fits and sells hearing aids. Licensing requirements vary by state but typically include coursework or an apprenticeship (often 2 years) plus a state licensing exam. Some states require continuing education for license renewal.
What hearing aid specialists do
- Basic hearing tests: Pure-tone audiometry and speech testing sufficient to determine hearing aid candidacy and select appropriate devices.
- Hearing aid fitting and sales: Select, fit, and program hearing aids. Provide follow-up adjustments and maintenance.
- Real-ear measurement (when used): Some HIS professionals use real-ear verification; others do not. This varies by practice.
What hearing aid specialists do not do
- Diagnostic audiology: HIS training focuses on hearing aid fitting, not comprehensive diagnostic testing.
- Vestibular testing: Balance testing requires audiology training and is not within HIS scope.
- Medical evaluation: HIS professionals cannot diagnose ear disease, prescribe medication, or perform surgery. They are trained to recognize red-flag symptoms and refer to a physician.
When to see a hearing aid specialist
A hearing aid specialist is appropriate for:
- Straightforward age-related or noise-induced hearing loss with no red-flag symptoms.
- Situations where lower cost is a priority and the patient is a good candidate for a streamlined fitting.
- Retail channels like Costco, Sam's Club, or hearing aid chains that employ licensed hearing aid specialists.
Costco and the HIS model
Costco hearing aid centers are staffed primarily by licensed hearing aid specialists (not audiologists). Costco's model offers high-quality hearing aids from major manufacturers (Phonak, ReSound, Jabra by GN, Philips) at significantly lower prices than private-practice audiology, with the trade-off being a more streamlined fitting process and HIS-level rather than Au.D.-level care.
For appropriate candidates (gradual, symmetric, age-related or noise-induced hearing loss with no medical concerns), Costco provides competent fittings at $1,200 to $2,000 per pair compared to $3,000 to $7,000 at private-practice audiology. For complex hearing loss, diagnostic needs, or patients who benefit from the additional time and expertise an audiologist provides, private-practice audiology may be worth the higher cost.
For more on Costco's model, pricing, and who makes Costco hearing aids, see our Costco hearing aids guide.
Quick decision guide
- Start with an ENT if you have red-flag symptoms: sudden hearing loss, one-sided loss, ear pain, drainage, dizziness, or sudden-onset tinnitus. The ENT will evaluate for medical or surgical causes and refer to audiology if hearing aids are appropriate.
- Start with an audiologist if you want comprehensive diagnostic testing, vestibular evaluation, tinnitus management, or prefer doctoral-level care and real-ear-verified hearing aid fitting.
- Start with a hearing aid specialist (HIS) if you have straightforward hearing loss with no medical concerns and want a competent fitting at lower cost. Costco is a good example of the HIS model done well.
- If unsure, see your primary care doctor first. They can examine your ears, rule out impacted wax or infection, and refer to an ENT or audiologist as appropriate.
For more on choosing hearing aids and understanding the process, see our step-by-step decision guide. For the early signs of hearing loss and when to act, see our signs of hearing loss guide.
Sources
- American Academy of Audiology (AAA), About Audiology. Defines the audiologist scope of practice and Au.D. degree requirements.
- American Academy of Otolaryngology–Head and Neck Surgery (AAO-HNS), ENThealth.org. Patient education and ENT scope of practice.
- International Hearing Society (IHS), IHSinfo.org. Hearing aid specialist training, licensing, and scope of practice.
- State licensing requirements for audiologists, ENTs, and hearing aid specialists vary by state. Consult your state audiology board, medical board, or hearing aid dispenser board for specific requirements.
- FDA red-flag symptoms requiring medical evaluation before using hearing aids: sudden hearing loss within 90 days, unilateral hearing loss, ear pain, drainage, dizziness. See FDA Consumer Products: Hearing Aids.