Talya Danzer, MS, CGC
Talya Danzer, MS, CGC is a Genetic Counselor (M.S.) in New York, NY, registered under NPI 1457159410. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 156 WILLIAM ST FL 7, New York, NY 10038. 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 |
|---|---|---|
| 22721 | Genetic Counselor (M.S.) primary | |
| GC-11 | MS | Genetic Counselor (M.S.) |
| 345634 | LA | Genetic Counselor (M.S.) |
| 709 | TN | Genetic Counselor (M.S.) |
Licences are recorded in 3 states: MS, LA, TN. 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 3 states
This provider holds licences in 3 states: Louisiana, Mississippi and Tennessee. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care 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 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 4 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.) | 22721 | — | primary |
| 170300000X | Genetic Counselor (M.S.) | GC-11 | MS | |
| 170300000X | Genetic Counselor (M.S.) | 345634 | LA | |
| 170300000X | Genetic Counselor (M.S.) | 709 | TN |
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 | 1457159410 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 5, 2025 |
| Last updated | Apr 28, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MS, CGC |
| Practice address |
156 WILLIAM ST FL 7 New York, NY 10038 (646) 962-2620 |
| Mailing address |
2019A GALBRAITH DR Nashville, TN 37215 |
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 | 4 | 5 | 7 | 1 | 5 | 9 | 4 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 1 | 7 | 2 | 5 | 9 | 4 | 2 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.