Active NPI
Lawrence Prensky, M.S.
- Genetic Counselor (M.S.)
- San Francisco, CA
National Provider Identifier
1386622892
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Genetic Counselor (M.S.)
- Practice address
- 3700 California St
Room G310
San Francisco, CA 94118-1618 - Phone
- (415) 600-2153
- NPI assigned
- Jan 4, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Genetic Counselor (M.S.) | 170300000X | Primary |
Addresses
Primary practice location
3700 California St
Room G310
San Francisco, CA 94118-1618
Mailing address
2211 Vista del Mar
San Mateo, CA 94404-2488
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Master of Science
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1136332800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1386622892",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2211 VISTA DEL MAR",
"city": "SAN MATEO",
"state": "CA",
"postal_code": "944042488"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3700 CALIFORNIA ST",
"address_2": "ROOM G310",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941181618",
"telephone_number": "415-600-2153"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PRENSKY",
"first_name": "LAWRENCE",
"name_prefix": "Mr.",
"credential": "M.S.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-01-04",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "170300000X",
"taxonomy_group": "",
"desc": "Genetic Counselor, MS",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in San Francisco, CA
- Mukund Premkumar, MD
- Nana Agya Boakye Atonsah Prempeh, MD
- Charlene Jade Crisostomo Premyodhin
- Prendergast and Rummer Phys Therapy Pelvic Health & Rehabiliation Ctr
- Stephanie Anne Prendergast, MPT
- Sandra C Prentice, FNP
- Diane E Prentiss, M.A., M.P.H.
- Lauren Prentiss, DACM, MSTCM, L.AC
- Steven L Prenzlauer, MD
- Daniel Preocanin, P.T.
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.