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MR. BRIAN LEONARDO MONTENEGRO MD
NPI 1194871376
Pediatrics - Neonatal-Perinatal Medicine in Fairfield, CA

Active since January 28, 2007PECOS Enrolled
NORTHBAY MEDICAL CENTER, 1200 B GALE WILSON BLVD, FAIRFIELD, CA 94533(707) 646-5000 Get Directions Write a Review

NPPES record last updated: November 24, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mr. Brian Leonardo Montenegro Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. BRIAN LEONARDO MONTENEGRO MD (NPI 1194871376) is an individual neonatal-perinatal medicine provider in Fairfield, California, licensed in California (A113592) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Travis Afb, and is a graduate of Tufts University School Of Medicine (2006).

NPPES Registry Identity

NPI1194871376
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameMR. BRIAN LEONARDO MONTENEGROCredential: MD
Location AddressNORTHBAY MEDICAL CENTER, 1200 B GALE WILSON BLVDFairfield, CA 94533-3552
Mailing AddressNorthbay Neonatology Associates, Inc, 1860 Pennsylvania Ave, Ste 145Fairfield, CA 94533-3547 · (707) 646-4052
Phone(707) 646-5000
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2006
Enumeration DateJanuary 28, 2007
Last NPPES UpdateNovember 24, 2025
NPPES CertifiedNovember 24, 2025
✔ NPI 1194871376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in CA · A113592
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License A113592 (CA)
NORTHBAY MEDICAL CENTER, Fairfield, CA 94533
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Secondary Practice Location 1

Location 1101 Bodin CirTravis AFB, CA 94535-1809 · Phone (707) 423-5323

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Brian Leonardo Montenegro Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID941707574
PECOS Enrollment IDI20251008004266
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Brian Montenegro reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California San Francisco
43 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
43 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808
Ucsf Pediatrics Associates
43 mi
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
NPI 1376614016 (415) 353-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brian Montenegro's NPI number?

The NPI number for Brian Montenegro is 1194871376. It was assigned to this individual provider in the NPPES registry on January 28, 2007.

Where is Brian Montenegro located?

Brian Montenegro practices at Northbay Medical Center 1200 B Gale Wilson Blvd, Fairfield, CA 94533. The listed phone number is (707) 646-5000.

What is Brian Montenegro's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Brian Montenegro enrolled in Medicare?

Yes. Brian Montenegro is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Brian Montenegro's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brian Montenegro reassigns Medicare benefits to 3 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Ucsf Pediatrics Associates (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brian Montenegro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Brian Montenegro was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.