Taxonomy Code Lookup | Provider Taxonomy Codes 2023

This detailed guide will explore the ins and outs of taxonomy codes lookup, covering everything you need to know about this crucial process. From understanding what taxonomy codes are to performing an efficient lookup, we’ve got you covered. Discover the intricacies of taxonomy codes and their importance in the healthcare industry.

Taxonomy code lookup is a fundamental aspect of the healthcare system. These codes are vital in identifying and categorizing healthcare providers and services for billing and regulatory purposes. In this comprehensive guide, we will discuss world of taxonomy codes, providing in-depth information and practical insights to help you easily navigate this complex domain.

What Are Taxonomy Codes?

Taxonomy codes are standardized codes used in the healthcare industry to classify various healthcare providers and services. These codes were established by the Centers for Medicare & Medicaid Services (CMS) and the National Uniform Claim Committee (NUCC) to streamline the billing process and ensure consistency across the healthcare system.

List of Taxonomy Codes in Medical Billing

Understanding the Importance of Taxonomy Codes Lookup

Taxonomy code lookup is crucial for healthcare providers, insurance companies, and regulatory authorities. It allows for accurate identification and categorization of healthcare services, ensuring proper reimbursement and adherence to healthcare regulations. The correct assignment of taxonomy codes is vital for efficient billing, claim processing, and fraud prevention.

The Significance of Accurate Taxonomy Codes in Healthcare

Accurate taxonomy codes are crucial for multiple aspects of the healthcare industry:

Ensuring Proper Reimbursement

The correct assignment of taxonomy codes is vital for healthcare providers to receive appropriate service reimbursement. Insurance companies use these codes to assure the services covered under a particular plan and the corresponding reimbursement rates.

Facilitating Claims Processing

Accurate taxonomy codes expedite the claims processing procedure. When the correct code is used, it reduces the likelihood of claim denials, leading to faster provider reimbursement.

Supporting Healthcare Research

Taxonomy codes are valuable for healthcare research and data analysis. Researchers and policymakers rely on these codes to study healthcare trends, allocate resources, and develop targeted healthcare initiatives.

Common Challenges in Taxonomy Codes Lookup

Conducting taxonomy codes lookup can be challenging due to the following reasons:

Limited Familiarity

Many healthcare providers may need to become more familiar with taxonomy codes or may have difficulty understanding the complexities of the code structure.

Frequent Code Updates

The CMS and NUCC regularly update taxonomy codes, adding or revising new ones. Keeping track of these changes can be time-consuming.

Ambiguity in Specialties

Certain healthcare services may fall into multiple specialties, which makes it confusing when selecting the appropriate taxonomy code.

Taxonomy Codes in Brief

  • Taxonomy codes are unique administrative codes used to identify the provider type and area of specialization for health care providers.
  • Each taxonomy code consists of ten characters and is alphanumeric.
  • The codes enable providers to identify their specialty at the claim level, ensuring accurate categorization and processing of claims.
  • Taxonomy codes have three distinct levels: Level I denotes the provider type, Level II represents the classification, and Level III specifies the area of specialization.
  • The complete list of taxonomy codes can be found in the Health Insurance Portability and Accountability Act (HIPAA) related code list section of the Washington Publishing Company (WPC) website.
  • Alternatively, providers can purchase a printed code list from WPC if they don’t have internet access.
  • Providers self-report taxonomy codes by registering with the National Plan and Provider Enumeration System (NPPES).
  • The assigned NPI number received from the NPPES confirmation notice includes the registered taxonomy codes at the time of NPI application.
  • Providers can inquire through the NPI Registry Website for current taxonomy codes and any subsequent changes.
  • Providers must register all applicable taxonomy codes with NPPES and use the correct code when filing claims for more accurate and timely processing.
  • While not currently required by Blue Cross and Blue Shield of New Mexico (BCBSNM) for most products, taxonomy codes are mandatory for the Blue Cross Community CentennialSM (Medicaid) product.
  • To ensure proper payment, the selected taxonomy code for a Medicaid claim must align with the specialty used during provider registration with the State of New Mexico.
  • BCBSNM’s system utilizes taxonomy codes, and their absence can lead to incorrect payment processing.
  • Electronic claim submissions with the ASC X12N 837P and 837I format should include taxonomy codes in segment PRV03 and loop 2000A for the billing level and segment PRV03 and loop 2420A for the rendering level.
  • Paper UB04 institutional claims should place the taxonomy code in box 81 with the “B3” qualifier.
  • Paper CMS-1500 professional claims should use the “ZZ” qualifier in the shaded portion of box 24i for the rendering level and in box 33b preceded by the “ZZ” qualifier for the billing level.

Important List of Taxonomy Codes :

1- chiropractic taxonomy code

2- nurse practitioner taxonomy code

3- optometrist taxonomy code

4- physical therapy taxonomy code

5- acupuncture taxonomy code

6- dental taxonomy codes

7- taxonomy code for ophthalmology

8- psychiatry taxonomy code

9- clinical social worker taxonomy code

10- behavioral health taxonomy codes

11- pharmacy taxonomy codes

12- taxonomy code for pain management

13- taxonomy code for the massage therapist

14- taxonomy code for gastroenterology

15- APRN taxonomy code

16- durable medical equipment taxonomy code

17- hcfa 1500 taxonomy code

18- HIPAA taxonomy codes

19- home health care Taxonomy code

20- hospitalist taxonomy code

Taxonomy codes are standardized in the healthcare industry to classify and categorize healthcare providers based on their specialties and practice areas. Below are the taxonomy codes for various healthcare professions:

1) Chiropractic Taxonomy Code: 111N00000X Chiropractors are healthcare professionals who specialize in treating musculoskeletal and nervous system disorders, primarily through manual adjustments and manipulation of the spine.

2) Nurse Practitioner Taxonomy Code: 363L00000X Nurse practitioners (NPs) are advanced practice nurses with additional training and can provide a wide range of healthcare services, including diagnosing and treating common illnesses and managing chronic conditions.

3) Optometrist Taxonomy Code: 152W00000X Optometrists specialize in providing vision care services, such as prescribing glasses and contact lenses and diagnosing and treating various eye conditions.

4) Physical Therapy Taxonomy Code: 225100000X Physical therapists are professional healthcare professionals who help patients improve their physical mobility and function through therapeutic exercises, manual therapy, and other techniques.

5) Acupuncture Taxonomy Code: 171100000X Acupuncturists are practitioners who use acupuncture, a traditional Chinese medicine technique in which thin needles into the body, to treat various health conditions and promote overall wellness.

6) Dental Taxonomy Codes:

a) General Dentist: 1223G0001X

b) Pediatric Dentist: 1223P0221X

c) Orthodontist: 1223X0400X

d) Oral and Maxillofacial Surgeon: 1223S0112X

7) Taxonomy Code for Ophthalmology: 207W00000X Ophthalmologists specialize in eye and vision care, including diagnosing and treating eye diseases, performing eye surgeries, and prescribing glasses or contact lenses.

8) Psychiatry Taxonomy Code: 2084P0800X Psychiatrists are doctors specialize in the diagnosis, treatment, and prevention of mental health disorders.

9) Clinical Social Worker Taxonomy Code: 1041C0700X Clinical social workers provide mental health services to individuals, families, and groups, helping them cope with and overcome various emotional and behavioral challenges.

10) Behavioral Health Taxonomy Codes:

a) Mental Health Counselor: 101YM0800X

b) Substance Abuse Counselor: 101YS0200X

c) Behavioral Analyst: 103K00000X

11) Pharmacy Taxonomy Codes:

a) Community/Retail Pharmacy: 3336C0003X

b) Hospital Pharmacy: 3336H0001X

c) Ambulatory Care Pharmacy: 3336A0003X

d) Nuclear Pharmacy: 3336N0007X

12) Taxonomy Code for Pain Management: 208VP0014X Pain management specialists are healthcare providers who focus on diagnosing, and treating various types of pain, including chronic pain conditions.

13) Taxonomy Code for Massage Therapists: 225700000X Massage therapists manually manipulate the body’s soft tissues to promote relaxation, reduce stress, and alleviate muscle tension.

14) Taxonomy Code for Gastroenterology: 207RG0100X Gastroenterologists are medical doctors who specialize in diagnosing and treating disorders related to the digestive system, including the esophagus, stomach, intestines, and liver.

15) APRN Taxonomy Code: 363L00000X Advanced Practice Registered Nurses (APRNs) encompass various specialties like Nurse Practitioners, Certified Nurse Midwives, Clinical Nurse Specialists, and Certified Registered Nurse Anesthetists.

16) Durable Medical Equipment Taxonomy Code: 332B00000X Providers of durable medical equipment (DME) supply items for long-term use, such as wheelchairs, walkers, and oxygen equipment.

17) HCFA 1500 Taxonomy Code: The HCFA 1500 form is used for insurance claims and doesn’t have specific taxonomy codes. Instead, healthcare providers use the appropriate taxonomy code based on their specialty or service when filling out the form.

18) HIPAA Taxonomy Codes: HIPAA (Health Insurance Portability and Accountability Act) doesn’t assign specific taxonomy codes. Instead, it defines rules and standards for electronic healthcare information exchange and protects patient data.

19) Home Health Care Taxonomy Code: 251E00000X Home health care providers offer medical and non-medical services to patients in their homes, assisting with daily activities and healthcare needs.

20) Hospitalist Taxonomy Code: 208M00000X Hospitalists are medical doctors specializing in providing medical care to patients during their hospital stay, coordinating treatment plans, and working closely with other healthcare professionals.

These taxonomy codes play a crucial role in healthcare billing and insurance claims, ensuring accurate identification and appropriate reimbursement for services provided by healthcare professionals.

How to Perform Taxonomy Codes Lookup?

Performing a taxonomy codes lookup requires access to reliable databases and resources. Here’s a step-by-step guide on how to conduct an effective taxonomy codes lookup:

  • Accessing Official Databases: Access official sources like the CMS and NUCC websites. These websites provide comprehensive lists of taxonomy codes and descriptions for each code.
  • Understanding the Code Structure: Familiarize yourself with the structure of taxonomy codes. Each code consists of ten characters, comprising both letters and numbers. The first four characters represent the category, followed by four characters for the classification and two for the specialization.
  • Cross-Referencing Specialties: When performing a taxonomy codes lookup, cross-reference the provider’s specialty with the appropriate taxonomy code. Selecting the most accurate code that precisely reflects the services the provider offers is essential.
  • Using Lookup Tools: Various online lookup tools and software are available to streamline the process of finding the right taxonomy code. These tools often allow you to search by keyword, provider name, or specialty.
  • Validating the Code: After identifying the appropriate code, validate it against the official taxonomy code lists. Ensure that the code aligns with the provider’s services and qualifications.


Q1. Why are taxonomy codes important for healthcare providers?

Ans. Taxonomy codes are essential for healthcare providers as they help identify their specialties accurately, ensuring appropriate reimbursement and smoother claims processing.

Q2. Are taxonomy codes unique for each healthcare provider?

Ans. Yes, each healthcare provider is assigned a taxonomy code that reflects their particular area of specialization.

Q3. Can taxonomy codes be updated or changed?

Ans. Yes, taxonomy codes can be updated or changed when a provider’s scope of practice or specialization evolves.

Q4. Do insurance companies use taxonomy codes to determine coverage?

Ans. Insurance companies use taxonomy codes to determine the covered services and reimbursement rates for healthcare providers.

Q5. How often are taxonomy codes updated?

Ans. Taxonomy codes are periodically updated by the CMS and NUCC to reflect changes in the healthcare industry.

Q6. Can using the wrong taxonomy code result in claim denials?

Ans. Yes, using the wrong taxonomy code can lead to claim denials and delays in reimbursement.

Conclusion :

In conclusion, taxonomy codes lookup is a critical process in the healthcare industry that ensures accurate categorization and billing for healthcare services. Understanding the significance of taxonomy codes and how to perform an efficient lookup is essential for healthcare providers, insurance companies, and regulatory authorities. By utilizing reliable resources and keeping track of updates, healthcare professionals can confidently navigate the world of taxonomy codes, leading to smoother operations and better patient care.

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  • NSingh (MBA, RCM Expert)

    The author and contributor of this blog "NSingh" is working in Medical Billing and Coding since 2010. He is MBA in marketing and Having vaste experience in different scopes of Medical Billing and Coding as AR-Follow-up, Payment Posting, Charge posting, Coding, etc.