Other Service Providers / 170100000X
Individual · classification
170100000X Ph.D. Medical Genetics
170100000X is the taxonomy code for Medical Genetics, Ph.D. Medical Genetics, in the NUCC group “Other Service Providers”. It is a code for individual providers — the kind used on a Type 1 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 170100000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 38
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 170100000X sits
- Group: Other Service Providers — code 26 of 38 in the group
- Classification: Medical Genetics, Ph.D. Medical Genetics 170100000X
Medical Genetics, Ph.D. Medical Genetics has no specializations, so 170100000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
170100000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — the provider can still hold an NPI and use this code on claims to other payers.
Related codes
No other codes share the classification Medical Genetics, Ph.D. Medical Genetics. The rest of Other Service Providers is on the group page.
History of 170100000X
NUCC's notes record no dated changes for 170100000X. The code set is republished every January and July, when codes are added, retitled or marked inactive; this page reflects version 26.1, so check the NUCC site if you are reading it after the next release.
Similar codes in other groups
If 170100000X 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:
- 207PE0004X Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians)
- 207PT0002X Medical Toxicology (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians)
- 202C00000X Independent Medical Examiner Physician (Allopathic & Osteopathic Physicians)
- 207RX0202X Medical Oncology Physician (Allopathic & Osteopathic Physicians)
- 207SG0202X Clinical Biochemical Genetics Physician (Allopathic & Osteopathic Physicians)
- 207SG0201X Clinical Genetics (M.D.) Physician (Allopathic & Osteopathic Physicians)
Find providers with 170100000X
Using 170100000X
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). Checked 2026-10-24. Methodology.