208U00000X — Clinical Pharmacology Physician

208U00000X is the NUCC provider taxonomy code for Clinical Pharmacology Physician (individual providers). 195 providers in our latest NPPES snapshot list it as their primary taxonomy.

Taxonomy code	208U00000X
Display name	Clinical Pharmacology Physician
Grouping	Allopathic & Osteopathic Physicians
Classification	Clinical Pharmacology
Section	Individual
Directory	Clinical Pharmacology provider directory

Definition

Clinical pharmacology encompasses the spectrum of activities related to the discovery, development, regulation, and utilization of safe and effective drugs.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

207K00000X — Allergy & Immunology Physician
207KA0200X — Allergy Physician (Allergy & Immunology)
207KI0005X — Clinical & Laboratory Immunology (Allergy & Immunology) Physician (Allergy & Immunology)
207L00000X — Anesthesiology Physician
207LA0401X — Addiction Medicine (Anesthesiology) Physician (Anesthesiology)
207LC0200X — Critical Care Medicine (Anesthesiology) Physician (Anesthesiology)
207LH0002X — Hospice and Palliative Medicine (Anesthesiology) Physician (Anesthesiology)
207LP2900X — Pain Medicine (Anesthesiology) Physician (Anesthesiology)

Frequently asked questions

What does taxonomy code 208U00000X mean?

208U00000X is the NUCC Health Care Provider Taxonomy code for Clinical Pharmacology Physician in the "Allopathic & Osteopathic Physicians" grouping. It classifies individual providers.

Where is the taxonomy code used?

Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.

How do I find providers with taxonomy 208U00000X?

Browse the Clinical Pharmacology directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-09.