Health Care Provider Taxonomy Codes

Version 22.1 - Last Updated on: July 01, 2022

The health care providers taxonomy codes are unique alphanumeric codes, ten characters in length. The codes are divided into three distinct "levels": Provider Grouping, Classification, and Area of Specialization. The code set levels are organized to allow navigating down from generic classification to a provider's most specific level of specialization. The code set is designed for use in electronic health care transactions mandated under HIPAA.

Taxonomy codes are self-selected by the health care providers. Their specialty is defined based on their education level and training. Taxonomy codes do not specify the actual services rendered by the health care provider.

Taxonomy Codes Levels

The taxonomy code set is divided in three hierarchical -Levels- starting with Level I Provider Grouping followed by Level II Classification and Level III Area of Specialization.

  • Level I - Provider Grouping
    This is the root level of the taxonomy codes set. Here you will find all the major grouping of services and occupations of health care providers.
  • Level II - Classification
    This is the second level of the taxonomy codes data set. The classification level is more specific and describes the service or occupation of the health care provider.
  • Level III - Area of Specialization
    This is the third and last level of the taxonomy codes data set. The area of specialization level describes the specific services practiced by the health care provider. For instance, all Allopathic & Osteopathic Physicians that have subspecialty certificates issued by national boards will find their taxonomy code at this level.

The National Uniform Claim Committee (NUCC) maintains the taxonomy code set. The taxonomy code set is updated twice a year on January 1st and July 1st. The January update is effective on the next April 1st of that year while the July update is effective on October 1st of the same year. The current taxonomy code version is NCCU Provider Taxonomy Version 22.1 and was last updated on July 01, 2022.

Level II Taxonomy Codes

Agencies 15

A non-facility provider that renders outpatient outreach services that are not provided at a specific location. The licensure or registration is assigned to the agency rather than to the individual practitioners as would be the case in a group practice.

Allopathic & Osteopathic Physicians 227

A broad category grouping of state licensed providers in allopathic or osteopathic medicine whose scope of practice is determined by education.

Ambulatory Health Care Facilities 63

A facility or distinct part of one that provides services on an outpatient basis in a fixed location or specifically designed mobile unit. An Ambulatory Care Facility does not provide overnight accommodations.

Chiropractic Providers 12

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

Dental Providers 20

A broad category to identify practitioners who render services related the practice of dentistry. Dentistry is defined as the evaluation, diagnosis, prevention and/or treatment (nonsurgical, surgical or related procedures) of diseases, disorders and/or conditions of the oral cavity, maxillofacial area and/or the adjacent and associated structures and their impact on the human body; provided by a dentist, within the scope of his/her education, training and experience, in accordance with the ethics of the profession and applicable law.

Emergency Medical Service Providers 4

A broad category for individuals who complete additional training and education in the area of pre-hospital emergency services and are licensed and/or practice within the scope of that training.

Group 2

A business entity under which one or more individuals practice. A group does not require multiple professional providers. A single provider group is a valid group and would be identified by the business entity name.

Hospital Units 5

A distinct part of a general acute care hospital. The distinctness of a unit is determined by characteristics such as the following: the unit has admission and discharge records that are separately identified from those of the hospital; the hospital has policies specifying that necessary clinical information is transferred to the unit when a patient of the hospital is transferred to the unit; the hospital's utilization review plan includes separate standards for the type of care offered in the unit; the beds assigned to the unit are physically separate from beds not included in the unit; the unit is treated as a separate cost center for cost reporting, funding and apportionment purposes.

Laboratories 4

A room or building equipped for scientific experimentation, research, testing, or clinical studies of materials, fluids, or tissues obtained from patients.

Nursing Service Providers 59

Providers who are trained and educated to perform services in health promotion, disease prevention, acute and chronic care, and restoration of health, and health maintenance across the life span.

Nursing Service Related Providers 13

Providers who are trained and educated to perform and administer services related to health promotion, disease prevention, acute and chronic care, spiritual guidance and comfort for healing and health, restoration of health and health maintenance across the life span.

Physician Assistants & Advanced Practice Nursing Providers 58

A broad grouping of providers who are: 1) trained, educated, and certified to perform basic medical and minor surgical services (or to assist the physician in performance of more complex services) under general physician supervision; and 2) trained, educated at a post-graduate level, and certified to perform autonomous and specialized roles as nurse practitioners, midwives, nurse anesthetists, or clinical nurse specialists.

Residential Treatment Facilities 8

Live in facilities where patients or clients, who because of their physical, mental, or emotional condition, are not able to live independently, and who receive treatment appropriate to their particular needs in a less restrictive environment than an inpatient facility. For example, an RTC may provide educational training and therapy for children with emotional disturbances or continuing care and therapy for people with severe mental handicaps.

Respiratory, Developmental, Rehabilitative And Restorative Service Providers 82

A provider who is trained and educated to perform services related to respiratory care, physical therapy, occupational therapy, developmental therapy, rehabilitation and restorative services and may be licensed, certified or practice within the scope of training.

Respite Care Facility 5

A facility with dorm rooms where individuals who are unable to care for themselves may stay on a short term basis overnight to allow relief to persons normally providing care to them.

Technologists, Technicians & Other Technical Service Providers 65

A broad category grouping providers who apply scientific knowledge in solving practical or theoretical problems or applies technical procedures in accordance with their training and experience.

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