Specialty directory
Every medical field Kalivar matches on, and what each kind of specialty choice covers.
This is the complete list of the medical fields Kalivar matches cases on — every field an attorney can choose and every field an expert can be matched into. Use it to confirm your area is covered and to see how the subspecialties roll up. The picker itself is searchable, so you don't need this page to post or take a case; it's here as a reference.
Who can opine — at a glance
An attorney picks one specialty option per case. Its kind decides who can opine:
| The attorney chooses… | Who can opine |
|---|---|
| A specific subspecialty (no badge) | Only experts who hold that exact subspecialty. |
A whole field (whole field badge) | Any expert in that field, whatever their subspecialty. |
A subspecialty, in any field (any specialty badge) | Any expert who practises that subspecialty, whatever field they trained in. |
If the case is limited to certain U.S. states, the expert must also be licensed in one of them. Full walkthroughs:
Read the matching guides
Attorneys: Choosing the right specialty explains how wide to cast the net. Experts: Which cases you can opine on explains why a case is open to you. The term itself: Matching breadth.
How to read this directory
- Fields are split into the picker's two tabs: MD/DO (physicians) and NPP (non-physician practitioners).
- A field with subspecialties is shown as an expandable group — open it to see every subspecialty inside. Choosing the whole field reaches all of them; choosing one subspecialty reaches just that row.
- Standalone fields have no subspecialties to roll up — the field is the specialty.
- Subspecialties that appear in more than one field of the same tab are listed again at the end of each tab, because an attorney can request them across any field. An "any specialty" request never crosses the MD/DO ↔ NPP line.
Physician fields — MD/DO tab
37 fields, 238 specialties in total.
Because the NUCC taxonomy fuses psychiatry and neurology into this single classification, the specialty picker offers two curated shortcuts so each side is reachable on its own: "Neurology — all subspecialties" (the 11 neurology codes above) and "Psychiatry — all subspecialties" (the 6 psychiatry codes). Choosing the whole Psychiatry & Neurology field instead reaches every subspecialty on both sides.
Like Psychiatry & Neurology, the NUCC taxonomy fuses several distinct radiology boards into this one classification. The picker offers two curated shortcuts so you can target one side without the other: "Diagnostic Radiology — all subspecialties" (diagnostic and interventional imaging) and "Radiation Oncology — all subspecialties". Choosing the whole Radiology field reaches every radiology subspecialty at once.
Standalone fields (no subspecialties to roll up):
Clinical Pharmacology · Colon & Rectal Surgery · Electrodiagnostic Medicine · General Practice · Hospitalist · Independent Medical Examiner · Integrative Medicine · Legal Medicine · Neurological Surgery · Neuromusculoskeletal Medicine & OMM · Neuromusculoskeletal Medicine, Sports Medicine · Oral & Maxillofacial Surgery · Phlebology · Thoracic Surgery (Cardiothoracic Vascular Surgery) · Transplant Surgery
Subspecialties shared across physician fields
These appear under more than one physician field, so an attorney can ask for the subspecialty in any field — any physician who practises it qualifies, whatever their base specialty.
| Subspecialty | Practised within these fields |
|---|---|
| Addiction Medicine | Anesthesiology · Family Medicine · Internal Medicine · Preventive Medicine · Psychiatry & Neurology |
| Adolescent Medicine | Family Medicine · Internal Medicine · Pediatrics |
| Brain Injury Medicine | Physical Medicine & Rehabilitation · Psychiatry & Neurology |
| Clinical & Laboratory Immunology | Allergy & Immunology · Internal Medicine · Pediatrics |
| Clinical Informatics | Pathology · Preventive Medicine |
| Critical Care Medicine | Anesthesiology · Internal Medicine · Obstetrics & Gynecology |
| Dermatopathology | Dermatology · Pathology |
| Diabetology | Family Medicine · Internal Medicine |
| Diagnostic Neuroimaging | Psychiatry & Neurology · Radiology |
| Geriatric Medicine | Family Medicine · Internal Medicine |
| Hematology | Internal Medicine · Pathology |
| Hospice and Palliative Medicine | Anesthesiology · Emergency Medicine · Family Medicine · Internal Medicine · Obstetrics & Gynecology · Pediatrics · Physical Medicine & Rehabilitation · Psychiatry & Neurology · Radiology · Surgery |
| Medical Toxicology | Emergency Medicine · Pediatrics · Preventive Medicine |
| Molecular Genetic Pathology | Medical Genetics · Pathology |
| Neurodevelopmental Disabilities | Pediatrics · Psychiatry & Neurology |
| Neuromuscular Medicine | Physical Medicine & Rehabilitation · Psychiatry & Neurology |
| Obesity Medicine | Family Medicine · Internal Medicine · Obstetrics & Gynecology · Pediatrics · Preventive Medicine · Psychiatry & Neurology |
| Pain Medicine | Anesthesiology · Pain Medicine · Physical Medicine & Rehabilitation · Psychiatry & Neurology |
| Pediatric Emergency Medicine | Emergency Medicine · Pediatrics |
| Physician Nutrition Specialist | Anesthesiology · Family Medicine · Internal Medicine · Pediatrics · Surgery |
| Sleep Medicine | Family Medicine · Internal Medicine · Otolaryngology · Pediatrics · Psychiatry & Neurology |
| Sports Medicine | Emergency Medicine · Family Medicine · Internal Medicine · Orthopaedic Surgery · Pediatrics · Physical Medicine & Rehabilitation · Preventive Medicine · Psychiatry & Neurology |
| Surgery of the Hand | Plastic Surgery · Surgery |
| Undersea and Hyperbaric Medicine | Emergency Medicine · Preventive Medicine |
| Urogynecology and Reconstructive Pelvic Surgery | Obstetrics & Gynecology · Urology |
Non-physician fields — NPP tab
125 fields, 453 specialties in total, grouped by provider category.
Behavioral Health & Social Service Providers
Standalone fields (no subspecialties to roll up):
Assistant Behavior Analyst · Behavior Analyst · Behavior Technician · Clinical Neuropsychologist · Drama Therapist · Marriage & Family Therapist · Poetry Therapist · Psychoanalyst
Chiropractic Providers
Dental Providers
Standalone fields (no subspecialties to roll up):
Advanced Practice Dental Therapist · Dental Assistant · Dental Hygienist · Dental Laboratory Technician · Dental Therapist · Denturist
Dietary & Nutritional Service Providers
Standalone fields (no subspecialties to roll up):
Dietary Manager · Dietetic Technician, Registered
Emergency Medical Service Providers
Standalone fields (no subspecialties to roll up):
Community Paramedic · Emergency Medical Technician, Basic · Emergency Medical Technician, Intermediate · Emergency Medical Technician, Paramedic · Personal Emergency Response Attendant
Eye and Vision Services Providers
Group
Standalone fields (no subspecialties to roll up):
Multi-Specialty · Single Specialty
Nursing Service Providers
Standalone fields (no subspecialties to roll up):
Licensed Practical Nurse · Licensed Psychiatric Technician · Licensed Vocational Nurse
Nursing Service Related Providers
Standalone fields (no subspecialties to roll up):
Adult Companion · Chore Provider · Day Training/Habilitation Specialist · Doula · Home Health Aide · Homemaker · Nurse's Aide · Nursing Home Administrator · Religious Nonmedical Nursing Personnel · Religious Nonmedical Practitioner
Other Service Providers
Standalone fields (no subspecialties to roll up):
Acupuncturist · Case Manager/Care Coordinator · Clinical Ethicist · Community Health Worker · Driver · Funeral Director · Genetic Counselor, MS · Health & Wellness Coach · Health Educator · Homeopath · Interpreter · Lactation Consultant, Non-RN · Legal Medicine · Mechanotherapist · Medical Genetics, Ph.D. Medical Genetics · Midwife · Midwife, Lay · Naprapath · Naturopath · Peer Specialist · Prevention Professional · Reflexologist · Sleep Specialist, PhD
Pharmacy Service Providers
Standalone fields (no subspecialties to roll up):
Pharmacy Technician
Physician Assistants & Advanced Practice Nursing Providers
Standalone fields (no subspecialties to roll up):
Advanced Practice Midwife · Anesthesiologist Assistant · Nurse Anesthetist, Certified Registered
Podiatric Medicine & Surgery Service Providers
Standalone fields (no subspecialties to roll up):
Assistant, Podiatric
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Standalone fields (no subspecialties to roll up):
Anaplastologist · Art Therapist · Clinical Exercise Physiologist · Dance Therapist · Developmental Therapist · Kinesiotherapist · Massage Therapist · Mastectomy Fitter · Music Therapist · Orthotic Fitter · Orthotist · Pedorthist · Physical Therapy Assistant · Prosthetist · Pulmonary Function Technologist · Recreation Therapist · Recreational Therapist Assistant · Rehabilitation Practitioner
Speech, Language and Hearing Service Providers
Standalone fields (no subspecialties to roll up):
Audiologist-Hearing Aid Fitter · Hearing Instrument Specialist · Speech-Language Pathologist
Student, Health Care
Standalone fields (no subspecialties to roll up):
Student in an Organized Health Care Education/Training Program
Technologists, Technicians & Other Technical Service Providers
Standalone fields (no subspecialties to roll up):
Perfusionist · Radiology Practitioner Assistant · Technician, Cardiology
Subspecialties shared across non-physician fields
| Subspecialty | Practised within these fields |
|---|---|
| Acute Care | Clinical Nurse Specialist · Nurse Practitioner |
| Addiction (Substance Use Disorder) | Counselor · Psychologist · Registered Nurse |
| Adult Health | Clinical Nurse Specialist · Nurse Practitioner |
| Ambulatory Care | Pharmacist · Registered Nurse |
| Assistive Technology Practitioner | Audiologist · Rehabilitation Counselor |
| Assistive Technology Supplier | Audiologist · Rehabilitation Counselor |
| Biomedical Engineering | Specialist/Technologist, Other · Technician, Other |
| Clinical | Psychologist · Social Worker |
| Community Health | Nurse Practitioner · Registered Nurse |
| Critical Care | Pharmacist · Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Driving and Community Mobility | Occupational Therapist · Occupational Therapy Assistant |
| Educational | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| EEG | Specialist/Technologist, Other · Technician, Other |
| Emergency | Clinical Nurse Specialist · Registered Nurse |
| Emergency Care | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Environmental Modification | Occupational Therapist · Occupational Therapy Assistant |
| Ergonomics | Occupational Therapist · Physical Therapist |
| Family | Nurse Practitioner · Psychologist |
| Feeding, Eating & Swallowing | Occupational Therapist · Occupational Therapy Assistant |
| General Care | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| General Practice | Dentist · Registered Nurse |
| Geriatric Care | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Gerontology | Clinical Nurse Specialist · Nurse Practitioner · Occupational Therapist · Registered Nurse |
| Hand | Occupational Therapist · Physical Therapist |
| Histology | Specialist/Technologist, Pathology · Technician, Pathology |
| Home Health | Clinical Nurse Specialist · Registered Nurse · Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Human Factors | Occupational Therapist · Physical Therapist |
| Low Vision | Occupational Therapist · Occupational Therapy Assistant |
| Medical-Surgical | Clinical Nurse Specialist · Registered Nurse |
| Mental Health | Counselor · Occupational Therapist |
| Neonatal | Clinical Nurse Specialist · Nurse Practitioner |
| Neonatal/Pediatrics | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Neuroscience | Clinical Nurse Specialist · Registered Nurse |
| Nutrition Support | Pharmacist · Registered Nurse |
| Occupational Health | Chiropractor · Clinical Nurse Specialist · Nurse Practitioner · Registered Nurse |
| Oncology | Clinical Nurse Specialist · Pharmacist · Registered Nurse |
| Ophthalmic | Registered Nurse · Technician/Technologist |
| Orthopedic | Chiropractor · Physical Therapist · Registered Nurse |
| Pain Management | Pharmacist · Registered Nurse |
| Palliative/Hospice | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Patient Transport | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Pediatrics | Clinical Nurse Specialist · Nurse Practitioner · Occupational Therapist · Optometrist · Pharmacist · Physical Therapist · Registered Nurse |
| Perinatal | Clinical Nurse Specialist · Nurse Practitioner · Registered Nurse |
| Psychiatric/Mental Health | Clinical Nurse Specialist · Nurse Practitioner · Registered Nurse |
| Psychiatric/Mental Health, Adult | Clinical Nurse Specialist · Registered Nurse |
| Psychiatric/Mental Health, Child & Adolescent | Clinical Nurse Specialist · Registered Nurse |
| Pulmonary Diagnostics | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Pulmonary Function Technologist | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Pulmonary Rehabilitation | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Radiology | Chiropractor · Podiatrist |
| Rehabilitation | Chiropractor · Clinical Nurse Specialist · Psychologist · Registered Nurse |
| School | Clinical Nurse Specialist · Counselor · Nurse Practitioner · Psychologist · Registered Nurse · Social Worker |
| SNF/Subacute Care | Respiratory Therapist, Certified · Respiratory Therapist, Registered |
| Sonography | Radiologic Technologist · Specialist/Technologist Cardiovascular |
| Women's Health | Clinical Nurse Specialist · Nurse Practitioner |