Allopathic & Osteopathic Physicians / 207SG0201X
Individual · specialization · Medicare specialty D3
207SG0201X Clinical Genetics (M.D.) Physician
207SG0201X is the taxonomy code for Clinical Genetics (M.D.), 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 207SG0201X
- 2Level Specialization
- 3Medicare specialty D3 Medical Genetics and Genomics
- 4Codes in this group 238
Definition
A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207SG0201X sits
- Group: Allopathic & Osteopathic Physicians — code 76 of 238 in the group
- Classification: Medical Genetics
- Specialization: Clinical Genetics (M.D.) 207SG0201X
Choose 207SG0201X over the general Medical Genetics code when the provider's training or certification is specifically in clinical genetics (m.d.); 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 207SG0201X 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: 207SG0202X Clinical Biochemical Genetics Physician; 207SG0203X Clinical Molecular Genetics Physician; 207SG0205X Ph.D. Medical Genetics Physician; 207SM0001X Molecular Genetic Pathology (Medical Genetics) Physician.
Related codes
| Code | Medical Genetics — other specializations |
|---|---|
| 207SG0202X | Clinical Biochemical Genetics |
| 207SC0300X | Clinical Cytogenetics |
| 207SG0203X | Clinical Molecular Genetics |
| 207SG0207X | Medical Biochemical Genetics |
| 207SM0001X | Molecular Genetic Pathology |
The nearest 5 of 6 other codes under Medical Genetics; all are on the group page.
History of 207SG0201X
NUCC's earliest recorded change to 207SG0201X is from 2007 (definition added, source added).
- 2007-07-01 — definition added, source added
Similar codes in other groups
If 207SG0201X 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:
- 103G00000X Clinical Neuropsychologist (Behavioral Health & Social Service Providers)
- 103GC0700X Clinical Neuropsychologist (Behavioral Health & Social Service Providers)
- 103TC0700X Clinical Psychologist (Behavioral Health & Social Service Providers)
- 103TC2200X Clinical Child & Adolescent Psychologist (Behavioral Health & Social Service Providers)
- 1041C0700X Clinical Social Worker (Behavioral Health & Social Service Providers)
- 174V00000X Clinical Ethicist (Other Service Providers)
Find providers with 207SG0201X
Using 207SG0201X
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.