Allopathic & Osteopathic Physicians / 207SM0001X
Individual · specialization · Medicare specialty D3
207SM0001X Molecular Genetic Pathology (Medical Genetics) Physician
207SM0001X is the taxonomy code for Molecular Genetic Pathology, a specialization of Medical Genetics, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty D3, Medical Genetics and Genomics, under which 469 practitioners are enrolled.
- 1Taxonomy code 207SM0001X
- 2Level Specialization
- 3Medicare specialty D3 Medical Genetics and Genomics
- 4Codes in this group 238
Definition
A board certified subspecialty, the molecular genetic pathologist is expert in the principles, theory and technologies of molecular biology and molecular genetics. This expertise is used to make or confirm diagnoses of Mendelian genetic disorders, of human development, infectious diseases and malignancies and to assess the natural history of those disorders. A molecular genetic pathologist provides information about gene structure, function and alteration, and applies laboratory techniques for diagnosis, treatment and prognosis for individuals with related disorders.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207SM0001X sits
- Group: Allopathic & Osteopathic Physicians — code 79 of 238 in the group
- Classification: Medical Genetics
- Specialization: Molecular Genetic Pathology 207SM0001X
Choose 207SM0001X over the general Medical Genetics code when the provider's training or certification is specifically in molecular genetic pathology; 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 207SM0001X to Medicare specialty D3 (Medical Genetics and Genomics). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 469 practitioners are enrolled under it nationally, and 4 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 207SG0201X Clinical Genetics (M.D.) Physician; 207SG0202X Clinical Biochemical Genetics Physician; 207SG0203X Clinical Molecular Genetics Physician; 207SG0205X Ph.D. Medical Genetics Physician.
Related codes
| Code | Medical Genetics — other specializations |
|---|---|
| 207SG0201X | Clinical Genetics (M.D.) |
| 207SG0203X | Clinical Molecular Genetics |
| 207SG0207X | Medical Biochemical Genetics |
| 207SG0205X | Ph.D. Medical Genetics |
The nearest 4 of 6 other codes under Medical Genetics; all are on the group page.
History of 207SM0001X
NUCC's earliest recorded change to 207SM0001X is from 2007 (definition added, source added).
- 2007-07-01 — definition added, source added
Similar codes in other groups
If 207SM0001X 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:
- 1223P0106X Oral and Maxillofacial Pathology Dentistry (Dental Providers)
- 170300000X Genetic Counselor (M.S.) (Other Service Providers)
- 246Q00000X Pathology Specialist/Technologist (Technologists, Technicians & Other Technical Service Providers)
- 246R00000X Pathology Technician (Technologists, Technicians & Other Technical Service Providers)
Find providers with 207SM0001X
Using 207SM0001X
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.