Active NPI
Billiontoone Inc
- Clinical Medical Laboratory
- Menlo Park, CA
National Provider Identifier
1245937325
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Medical Laboratory
- Legal business name
- BILLIONTOONE INC
- Practice address
- 1035 Obrien Dr
Menlo Park, CA 94025-1408 - Phone
- (616) 607-4884
- Fax
- (866) 243-4198
- NPI assigned
- Feb 9, 2023
- Last updated
- Dec 12, 2025
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Mary Waskiewicz
- Title
- Lead Credentialing & Contracts Coor
- Phone
- (616) 607-4884
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Medical Laboratory | 291U00000X | NU | Primary |
Addresses
Primary practice location
1035 Obrien Dr
Menlo Park, CA 94025-1408
Mailing address
PO Box 8040
Carol Stream, IL 60197-8040
Phone (616) 607-4884
Other identifiers 20
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 103975820-0001 | Medicaid | PA | |
| 334198709 | Medicaid | AR | |
| 1245937325 | Medicaid | MN | |
| 167293 | Medicaid | AZ | |
| 30015266820005 | Medicaid | VA | |
| 349078 | Medicaid | AL | |
| 05D2275351 | Other | CA | CLIA CERTIFICATE |
| 9000235262 | Medicaid | CO | |
| Q107850 | Medicaid | TN | |
| 003322997A | Medicaid | GA | |
| 1245937325 | Medicaid | NC | |
| 1248772800 | Medicaid | FL | |
| 4294420 | Medicaid | UT | |
| 451074701 | Medicaid | MD | |
| 0088270 | Medicaid | OH | |
| 2302711 | Medicaid | WA | |
| L01100 | Medicaid | SC | |
| 10026909901 | Medicaid | NE | |
| 1245937325 | Medicaid | CA | |
| CA384475 | Medicaid | CA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20200107000177 | CA | Part B Supplier - Independent Clinical Laboratory | 5294169892 |
1 other NPI on this enrollment Practice locations: Menlo Park, CA; Union City, CA |
Other NPIs on the same Medicare enrollment 1
NPIs listed together on one Medicare enrollment, typically parts of the same organization.
-
dba BillionToOne Laboratory
- Clinical Medical Laboratory
- Union City, CA
- NPI 1598314437
O20200107000177
National Provider Directory
National Provider DirectoryLocations
1455 Adams Dr
Ste 1110
Menlo Park, CA 94025
Phone (650) 666-6443
3200 Whipple Rd
Union City, CA 94587
Phone (616) 607-4884
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1675900800000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1765497600000",
"number": "1245937325",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 8040",
"city": "CAROL STREAM",
"state": "IL",
"postal_code": "601978040",
"telephone_number": "616-607-4884",
"fax_number": "866-243-4198"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1035 OBRIEN DR",
"city": "MENLO PARK",
"state": "CA",
"postal_code": "940251408",
"telephone_number": "616-607-4884",
"fax_number": "866-243-4198"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "BILLIONTOONE INC",
"organizational_subpart": "NO",
"enumeration_date": "2023-02-09",
"last_updated": "2025-12-12",
"certification_date": "2025-12-12",
"status": "A",
"authorized_official_last_name": "WASKIEWICZ",
"authorized_official_first_name": "MARY",
"authorized_official_title_or_position": "LEAD CREDENTIALING & CONTRACTS COOR",
"authorized_official_telephone_number": "616-607-4884"
},
"taxonomies": [
{
"code": "291U00000X",
"taxonomy_group": "",
"desc": "Clinical Medical Laboratory",
"state": "NU",
"license": null,
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "103975820-0001",
"state": "PA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "334198709",
"state": "AR"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1245937325",
"state": "MN"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "167293",
"state": "AZ"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "30015266820005",
"state": "VA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "349078",
"state": "AL"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CLIA CERTIFICATE",
"identifier": "05D2275351",
"state": "CA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "9000235262",
"state": "CO"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "Q107850",
"state": "TN"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "003322997A",
"state": "GA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1245937325",
"state": "NC"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1248772800",
"state": "FL"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "4294420",
"state": "UT"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "451074701",
"state": "MD"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "0088270",
"state": "OH"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2302711",
"state": "WA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "L01100",
"state": "SC"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "10026909901",
"state": "NE"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1245937325",
"state": "CA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "CA384475",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Menlo Park, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.