207PT0002X Medical Toxicology (Emergency Medicine) Physician

Definition

Medical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings and environmental and workplace exposures.

— NUCC Health Care Provider Taxonomy, version 26.1

Where 207PT0002X sits

• Group: Allopathic & Osteopathic Physicians — code 23 of 238 in the group
• Classification: Emergency Medicine 207P00000X
• Specialization: Medical Toxicology 207PT0002X

Choose 207PT0002X over the general Emergency Medicine code (207P00000X) when the provider's training or certification is specifically in medical toxicology; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.

Medicare

CMS's taxonomy crosswalk links 207PT0002X to Medicare specialty 93 (Physician/Emergency Medicine) and Medicare specialty C8 (Physician/Medical Toxicology). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 64,532 practitioners are enrolled under it nationally, and 7 other taxonomy codes map to the same specialty.

Other codes under the same Medicare specialty: 146E00000X Community Paramedic; 207P00000X Emergency Medicine Physician; 207PE0004X Emergency Medical Services (Emergency Medicine) Physician; 207PE0005X Undersea and Hyperbaric Medicine (Emergency Medicine) Physician; 207PH0002X Hospice and Palliative Medicine (Emergency Medicine) Physician; 207PP0204X Pediatric Emergency Medicine (Emergency Medicine) Physician; 207PS0010X Sports Medicine (Emergency Medicine) Physician.

Related codes

History of 207PT0002X

NUCC's earliest recorded change to 207PT0002X is from 2007 (added definition, added source), and has been revised 1 time since.

• 2007-07-01 — added definition, added source
• 2011-07-01 — modified source

Similar codes in other groups

If 207PT0002X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:

• 103TP0016X Prescribing (Medical) Psychologist (Behavioral Health & Social Service Providers)
• 111NI0013X Independent Medical Examiner Chiropractor (Chiropractic Providers)
• 146N00000X Basic Emergency Medical Technician (Emergency Medical Service Providers)
• 146M00000X Intermediate Emergency Medical Technician (Emergency Medical Service Providers)
• 146L00000X Paramedic (Emergency Medical Service Providers)
• 163WM0705X Medical-Surgical Registered Nurse (Nursing Service Providers)

Using 207PT0002X

The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.

Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.