207UN0903X — In Vivo & In Vitro Nuclear Medicine Physician
207UN0903X is the NUCC provider taxonomy code for In Vivo & In Vitro Nuclear Medicine Physician, a specialization within Nuclear Medicine (individual providers). 22 providers in our latest NPPES snapshot list it as their primary taxonomy.
| Taxonomy code | 207UN0903X |
|---|---|
| Display name | In Vivo & In Vitro Nuclear Medicine Physician |
| Grouping | Allopathic & Osteopathic Physicians |
| Classification | Nuclear Medicine |
| Specialization | In Vivo & In Vitro Nuclear Medicine |
| Section | Individual |
| Directory | Nuclear Medicine provider directory |
Definition
A nuclear medicine physician who specializes in in vivo and in vitro nuclear medicine.
Definition from the NUCC Health Care Provider Taxonomy code set.
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Related taxonomy codes
- 207U00000X — Nuclear Medicine Physician
- 207UN0901X — Nuclear Cardiology Physician (Nuclear Medicine)
- 207UN0902X — Nuclear Imaging & Therapy Physician (Nuclear Medicine)
- 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)
Frequently asked questions
What does taxonomy code 207UN0903X mean?
207UN0903X is the NUCC Health Care Provider Taxonomy code for In Vivo & In Vitro Nuclear Medicine Physician, a specialization of Nuclear Medicine 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 207UN0903X?
Browse the Nuclear Medicine directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-09.