National totals
| Active NPI records | 6,390 |
| Registered sole proprietors | 974 (15.2%) |
| NUCC taxonomy code | 170300000X |
| Grouping | Other Service Providers |
What this specialty covers
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.
Reading the sole-proprietor share
For this specialty, 15.2% of records are flagged as sole proprietors in NPPES. This is a self-reported field and an imperfect proxy for private practice because it does not show whether a counselor works independently, is employed by a larger organization, or provides services through another arrangement.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 930 | 180 | 19.4% |
| Pennsylvania | 415 | 74 | 17.8% |
| New York | 382 | 69 | 18.1% |
| Ohio | 328 | 36 | 11.0% |
| Texas | 313 | 56 | 17.9% |
| Massachusetts | 264 | 41 | 15.5% |
| Illinois | 261 | 50 | 19.2% |
| Florida | 232 | 36 | 15.5% |
| North Carolina | 222 | 20 | 9.0% |
| Minnesota | 221 | 26 | 11.8% |
| Washington | 211 | 26 | 12.3% |
| Michigan | 185 | 17 | 9.2% |
| Wisconsin | 182 | 31 | 17.0% |
| Maryland | 164 | 33 | 20.1% |
| New Jersey | 160 | 31 | 19.4% |
| Georgia | 158 | 22 | 13.9% |
| Colorado | 143 | 20 | 14.0% |
| Virginia | 142 | 14 | 9.9% |
| Indiana | 131 | 11 | 8.4% |
| Utah | 127 | 16 | 12.6% |
| Tennessee | 104 | 13 | 12.5% |
| Missouri | 90 | <11 | not reported |
| Connecticut | 88 | 13 | 14.8% |
| South Carolina | 77 | <11 | not reported |
| Kentucky | 71 | 12 | 16.9% |
| Arizona | 61 | <11 | not reported |
| Arkansas | 60 | <11 | not reported |
| Oregon | 57 | <11 | not reported |
| District of Columbia | 54 | <11 | not reported |
| Delaware | 52 | <11 | not reported |
| Iowa | 47 | <11 | not reported |
| Nebraska | 43 | <11 | not reported |
| New Hampshire | 37 | <11 | not reported |
| New Mexico | 36 | <11 | not reported |
| Louisiana | 32 | <11 | not reported |
| Nevada | 31 | <11 | not reported |
| Idaho | 31 | <11 | not reported |
| South Dakota | 29 | <11 | not reported |
| Hawaii | 27 | <11 | not reported |
| Oklahoma | 26 | <11 | not reported |
| Maine | 25 | <11 | not reported |
| North Dakota | 23 | <11 | not reported |
| Montana | 21 | <11 | not reported |
| Rhode Island | 19 | <11 | not reported |
| Kansas | 17 | <11 | not reported |
| Alabama | 16 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2016 | 272 |
| 2017 | 293 |
| 2018 | 281 |
| 2019 | 310 |
| 2020 | 384 |
| 2021 | 375 |
| 2022 | 434 |
| 2023 | 442 |
| 2024 | 391 |
| 2025 | 458 |
Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.
Data notes
- The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
- A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
- NPI records may not equal unique practicing genetic counselors, and an NPI can reflect an individual or an organization.
- Taxonomy, enrollment status, and address information can change, so these counts describe the available NPI data rather than service volume or employment relationships.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many genetic counselors are there in the US?
There are 6,390 active NPI records with Genetic Counselor (M.S.) as the primary taxonomy. This is a count of NPI records, not necessarily a count of unique practicing people.
What percentage of genetic counselors are sole proprietors?
974 records, or 15.2%, are flagged as sole proprietors in NPPES. The flag is self-reported and does not precisely measure private-practice participation.
How many genetic counselors are in private practice?
There is no exact private-practice count in these data. The NPPES sole-proprietor field identifies 974 records, or 15.2%, but it is only an imperfect proxy for private practice.
Which state has the most genetic counselors?
California has the largest number of these records, with 930. The figures represent NPI records associated with the specialty, not necessarily unique counselors or service locations.
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