Individual provider Active NPI

Brian Leonardo Montenegro, MD

  • Neonatal-Perinatal Medicine Physician
  • Fairfield, CA
National Provider Identifier
1194871376
Registry record updated Nov 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neonatal-Perinatal Medicine PhysicianTaxonomy code 2080N0001X
License
A113592 Issued in CA
Practice address
Northbay Medical Center
1200 B Gale Wilson Blvd
Fairfield, CA 94533-3552
Phone
(707) 646-5000
NPI assigned
Jan 28, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 24, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Neonatal-Perinatal Medicine Physician 2080N0001X A113592 CA Primary
Pediatrics Physician 208000000X A113592 CA

Addresses

Primary practice location

Northbay Medical Center
1200 B Gale Wilson Blvd
Fairfield, CA 94533-3552

Mailing address

Northbay Neonatology Associates, Inc
1860 Pennsylvania Ave, Ste 145
Fairfield, CA 94533-3547
Phone (707) 646-4052

Other practice location 1

101 Bodin Cir
Travis AFB, CA 94535-1809
Phone (707) 423-5323

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: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251008004266 CA Practitioner - Pediatric Medicine 0941707574 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
Tufts University School of Medicine, 2006
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
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
University of California San Francisco CurrentSince Oct 1, 2025 Accepting new patients
UCSF Pediatrics Associates Pediatrics CurrentSince Oct 1, 2025 Accepting new patients
University of California San Francisco Pediatrics Current Accepting new patients
University of California San Francisco CurrentSince Oct 1, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Oct 1, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Oct 1, 2025 Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients

Locations

1860 Pennsylvania Ave
Ste 145
Fairfield, CA 94533
Phone (707) 646-4051

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

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

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

Interoperability endpoints

  • Direct secure messaging: bmontenegro246622@hisp.ehr.sutterhealth.org

Organizations & group practices 7

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": "1169942400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763942400000",
    "number": "1194871376",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "NORTHBAY NEONATOLOGY ASSOCIATES, INC",
            "address_2": "1860 PENNSYLVANIA AVE, STE 145",
            "city": "FAIRFIELD",
            "state": "CA",
            "postal_code": "945333547",
            "telephone_number": "707-646-4052"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "NORTHBAY MEDICAL CENTER",
            "address_2": "1200 B GALE WILSON BLVD",
            "city": "FAIRFIELD",
            "state": "CA",
            "postal_code": "945333552",
            "telephone_number": "707-646-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "101 Bodin Cir",
            "address_purpose": "LOCATION",
            "city": "Travis AFB",
            "state": "CA",
            "postal_code": "945351809",
            "country_code": "US",
            "telephone_number": "707-423-5323",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MONTENEGRO",
        "first_name": "BRIAN",
        "middle_name": "LEONARDO",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-28",
        "last_updated": "2025-11-24",
        "certification_date": "2025-11-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "CA",
            "license": "A113592",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A113592",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fairfield, CA

Sources for this page

Verify at the official NPI Registry.