Sean Dailey, MS, LCGC
Sean Dailey, MS, LCGC is a Genetic Counselor (M.S.) in San Francisco, CA, registered under NPI 1265395339.
Getting there
The practice address on file is 316 GUERRERO ST, San Francisco, CA 94103. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| GC10194 | MA | Genetic Counselor (M.S.) |
| 7201000625 | MI | Genetic Counselor (M.S.) |
| GC0479 | ND | Genetic Counselor (M.S.) |
| 70.000986 | OH | Genetic Counselor (M.S.) |
| GEN-GEN-LIC-001441 | MT | Genetic Counselor (M.S.) |
| 25MJ00105800 | NJ | Genetic Counselor (M.S.) |
| GC001077 | PA | Genetic Counselor (M.S.) |
| GC001960 | CA | Genetic Counselor (M.S.) primary |
| GCP-P-10258498 | OR | Genetic Counselor (M.S.) |
| GC496 | AL | Genetic Counselor (M.S.) |
| 833 | GA | Genetic Counselor (M.S.) |
| 9971769 | ID | Genetic Counselor (M.S.) |
| 246001016 | IL | Genetic Counselor (M.S.) |
| 74000743A | IN | Genetic Counselor (M.S.) |
| G0000484 | MD | Genetic Counselor (M.S.) |
Licences are recorded in 15 states: MA, MI, ND, OH, MT, NJ, PA, CA, OR, AL, GA, ID, IL, IN, MD. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 15 states
This provider holds licences in 15 states: Alabama, California, Georgia, Idaho, Illinois, Indiana, Massachusetts, Maryland, Michigan, Montana, North Dakota, New Jersey, Ohio, Oregon and Pennsylvania. The practice address on file is in San Francisco, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- GC001960
- Specialty
- Genetic Counselor (M.S.)
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Genetic Counselor, MS 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. NUCC Health Care Provider Taxonomy, code 170300000X
All registered taxonomy codes
This provider registers 15 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 170300000X | Genetic Counselor (M.S.) | GC10194 | MA | |
| 170300000X | Genetic Counselor (M.S.) | 7201000625 | MI | |
| 170300000X | Genetic Counselor (M.S.) | GC0479 | ND | |
| 170300000X | Genetic Counselor (M.S.) | 70.000986 | OH | |
| 170300000X | Genetic Counselor (M.S.) | GEN-GEN-LIC-001441 | MT | |
| 170300000X | Genetic Counselor (M.S.) | 25MJ00105800 | NJ | |
| 170300000X | Genetic Counselor (M.S.) | GC001077 | PA | |
| 170300000X | Genetic Counselor (M.S.) | GC001960 | CA | primary |
| 170300000X | Genetic Counselor (M.S.) | GCP-P-10258498 | OR | |
| 170300000X | Genetic Counselor (M.S.) | GC496 | AL | |
| 170300000X | Genetic Counselor (M.S.) | 833 | GA | |
| 170300000X | Genetic Counselor (M.S.) | 9971769 | ID | |
| 170300000X | Genetic Counselor (M.S.) | 246001016 | IL | |
| 170300000X | Genetic Counselor (M.S.) | 74000743A | IN | |
| 170300000X | Genetic Counselor (M.S.) | G0000484 | MD |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1265395339 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 5, 2025 |
| Last updated | Dec 5, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MS, LCGC |
| Practice address |
316 GUERRERO ST San Francisco, CA 94103 (717) 579-2626 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 2 | 6 | 5 | 3 | 9 | 5 | 3 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 3 | 5 | 6 | 9 | 1 | 3 | 6 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.