Active NPI
Marin Endocrine Care & Research Inc
- Nurse Practitioner
- Greenbrae, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nurse Practitioner
- License
- 9726
- Legal business name
- MARIN ENDOCRINE CARE & RESEARCH INC
- Practice address
- 900 South Eliseo Drive
#201
Greenbrae, CA 94904 - Phone
- (415) 461-1780
- Fax
- (415) 461-7378
- NPI assigned
- Aug 29, 2006
- Last updated
- Sep 11, 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
- Mr. Richard I Bernstein, MD
- Title
- Owner
- Phone
- (415) 461-1780
Authorized official NPPES reports the official by name only. The link goes to the one practitioner with that name whose NPPES practice address or phone number is this organization’s.
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | 9726 | CA | Primary |
| Registered Nurse | 163W00000X | 540997 | CA | |
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | 00G179390 | CA | |
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | 00G353640 | CA |
Addresses
Primary practice location
900 South Eliseo Drive
#201
Greenbrae, CA 94904
Mailing address
900 South Eliseo Drive
#201
Greenbrae, CA 94904
Phone (415) 461-1780
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00G179390 | Other | CA | BERNSTEIN LICENSE |
| 00G353640 | Other | CA | GAUDIANI LICENSE |
| GR0040590 | Medicaid | CA |
Other names 1
- Marin Endocrine Medical Group Inc
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 05D2202878 | Marin Endocrine Research | Certificate of waiver | Nov 30, 2026 |
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Endocrinology, Diabetes & Metabolism Physician
- Greenbrae, CA
- NPI 1780750406
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1156809600000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1757548800000",
"number": "1780792523",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "900 SOUTH ELISEO DRIVE",
"address_2": "#201",
"city": "GREENBRAE",
"state": "CA",
"postal_code": "94904",
"telephone_number": "415-461-1780",
"fax_number": "415-461-7378"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "900 SOUTH ELISEO DRIVE",
"address_2": "#201",
"city": "GREENBRAE",
"state": "CA",
"postal_code": "94904",
"telephone_number": "415-461-1780",
"fax_number": "415-461-7378"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "MARIN ENDOCRINE CARE & RESEARCH INC",
"organizational_subpart": "NO",
"enumeration_date": "2006-08-29",
"last_updated": "2025-09-11",
"status": "A",
"authorized_official_last_name": "BERNSTEIN",
"authorized_official_first_name": "RICHARD",
"authorized_official_middle_name": "I",
"authorized_official_title_or_position": "OWNER",
"authorized_official_telephone_number": "415-461-1780",
"authorized_official_name_prefix": "Mr.",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "CA",
"license": "9726",
"primary": true
},
{
"code": "163W00000X",
"taxonomy_group": "",
"desc": "Registered Nurse",
"state": "CA",
"license": "540997",
"primary": false
},
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "CA",
"license": "00G179390",
"primary": false
},
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "CA",
"license": "00G353640",
"primary": false
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BERNSTEIN LICENSE",
"identifier": "00G179390",
"state": "CA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "GAUDIANI LICENSE",
"identifier": "00G353640",
"state": "CA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "GR0040590",
"state": "CA"
}
],
"endpoints": [],
"other_names": [
{
"organization_name": "Marin Endocrine Medical Group Inc",
"code": "4",
"type": "Former Legal Business Name"
}
]
}
Other providers in Greenbrae, CA
- Marin Cancer Care Inc
- Marin Community Clinic
- Marin Community Clinic
- Marin Community Clinic
- Marin Community Clinic
- Marin Endoscopy Center, LLC (Endoscopy Center of Marin)
- Marin Family Medicine Medical Group, Inc. (Marin Family Medicine)
- Marin General Hospital
- Marin General Hospital
- Marin General Hospital
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.