Individual provider Active NPI

Diana Diaz, CNM

  • Advanced Practice Midwife
  • Greenbrae, CA
National Provider Identifier
1033097555
Registry record updated Feb 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Advanced Practice MidwifeTaxonomy code 367A00000X
License
NMW236582 Issued in CA
Practice address
250 Bon Air Rd
Greenbrae, CA 94904-1702
Phone
(415) 925-7000
NPI assigned
Aug 22, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 12, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Advanced Practice Midwife 367A00000X NMW236582 CA Primary

Addresses

Primary practice location

250 Bon Air Rd
Greenbrae, CA 94904-1702

Mailing address

250 Bon Air Rd
Greenbrae, CA 94904-1702
Phone (415) 925-7000

Other names 1

  • Diana Tenjo Barrera Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260225004347 CA Practitioner - Certified Nurse Midwife (CNM) 2264913482 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Certified Nurse Midwife (CNM)
Education
Other, 2025
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

2001 The Embarcadero
San Francisco, CA 94143-5200

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Nurse Midwife

State licenses

LicenseStateTypeSpecialty
NMW236582CAMDAdvanced Practice Midwife

Practice roles

OrganizationSpecialtyStatusNew patients
Regents Univ of California UCSF CurrentSince Feb 12, 2026 Accepting new patients

Locations

250 Bon Air Rd
Kentfield, CA 94904
Phone (415) 464-1350

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1755820800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1033097555",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 BON AIR RD",
            "city": "GREENBRAE",
            "state": "CA",
            "postal_code": "949041702",
            "telephone_number": "415-925-7000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 BON AIR RD",
            "city": "GREENBRAE",
            "state": "CA",
            "postal_code": "949041702",
            "telephone_number": "415-925-7000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "DIANA",
        "credential": "CNM",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-08-22",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367A00000X",
            "taxonomy_group": "",
            "desc": "Advanced Practice Midwife",
            "state": "CA",
            "license": "NMW236582",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DIANA",
            "last_name": "TENJO BARRERA",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Greenbrae, CA

Sources for this page

Verify at the official NPI Registry.