Allopathic & Osteopathic Physicians / 207SG0205X
Individual · specialization · Medicare specialty D3
207SG0205X Ph.D. Medical Genetics Physician
207SG0205X is the taxonomy code for Ph.D. Medical Genetics, 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 207SG0205X
- 2Level Specialization
- 3Medicare specialty D3 Medical Genetics and Genomics
- 4Codes in this group 238
Definition
A medical geneticist works in association with a medical specialist, is affiliated with a clinical genetics program and serves as a consultant to medical and dental specialists.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207SG0205X sits
- Group: Allopathic & Osteopathic Physicians — code 80 of 238 in the group
- Classification: Medical Genetics
- Specialization: Ph.D. Medical Genetics 207SG0205X
Choose 207SG0205X over the general Medical Genetics code when the provider's training or certification is specifically in ph.d. medical genetics; 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 207SG0205X 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; 207SM0001X Molecular Genetic Pathology (Medical Genetics) Physician.
Related codes
| Code | Medical Genetics — other specializations |
|---|---|
| 207SG0203X | Clinical Molecular Genetics |
| 207SG0207X | Medical Biochemical Genetics |
| 207SM0001X | Molecular Genetic Pathology |
The nearest 3 of 6 other codes under Medical Genetics; all are on the group page.
History of 207SG0205X
NUCC's earliest recorded change to 207SG0205X is from 2007 (definition added, source added).
- 2007-07-01 — definition added, source added
Similar codes in other groups
If 207SG0205X 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)
Find providers with 207SG0205X
Using 207SG0205X
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.