Active NPI
Sierra Brook Siemers, RDN
- Nutritionist
- Long Beach, CA
National Provider Identifier
1982559639
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nutritionist
- License
- 86290484
- Practice address
- 2776 Pacific Ave
Long Beach, CA 90806-2613 - Phone
- (562) 997-2000
- NPI assigned
- Feb 27, 2026
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Nutritionist | 133N00000X | 86290484 | CA | Primary |
Addresses
Primary practice location
2776 Pacific Ave
Long Beach, CA 90806-2613
Mailing address
8102 Marseille Dr
Huntington Beach, CA 92647-6018
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 86290484 | CA | MD | Nutritionist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1772150400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1772150400000",
"number": "1982559639",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "8102 MARSEILLE DR",
"city": "HUNTINGTON BEACH",
"state": "CA",
"postal_code": "926476018"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2776 PACIFIC AVE",
"city": "LONG BEACH",
"state": "CA",
"postal_code": "908062613",
"telephone_number": "562-997-2000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SIEMERS",
"first_name": "SIERRA",
"middle_name": "BROOK",
"credential": "RDN",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-02-27",
"last_updated": "2026-02-27",
"certification_date": "2026-02-27",
"status": "A"
},
"taxonomies": [
{
"code": "133N00000X",
"taxonomy_group": "",
"desc": "Nutritionist",
"state": "CA",
"license": "86290484",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Long Beach, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 27, 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.