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SONIA LOMELI BONIFACIO MD
NPI 1891915401
Pediatrics - Neonatal-Perinatal Medicine in Palo Alto, CA

Active since April 26, 2007PECOS Enrolled
725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: April 16, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Sonia Lomeli Bonifacio Md NPPES

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

SONIA LOMELI BONIFACIO MD (NPI 1891915401) is an individual neonatal-perinatal medicine provider in Palo Alto, California, licensed in California (A91240) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Menlo Park.

NPPES Registry Identity

NPI1891915401
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameSONIA LOMELI BONIFACIOCredential: MD
Location Address725 WELCH RDPalo Alto, CA 94304-1601
Mailing Address1053 Menlo Oaks DrMenlo Park, CA 94025-2311 · (650) 324-1828
Phone(650) 497-8000
Sole ProprietorNo
Enumeration DateApril 26, 2007
Last NPPES UpdateApril 16, 2024
NPPES CertifiedApril 16, 2024
✔ NPI 1891915401 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 · A91240
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 A91240 (CA)
725 WELCH RD, Palo Alto, CA 94304
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Other Names 1

Former Name (1)Sonia Cristina Lomeli M.d.

Secondary Practice Location 1

Location 11053 Menlo Oaks DrMenlo Park, CA 94025-2311 · Phone (650) 324-1828

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sonia Lomeli Bonifacio Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Sonia Bonifacio reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lpch Medical Group Div Of Lucile
Same address
Children
725 WELCH RD
Palo Alto, CA 94304
  • Reassigned Medicare billing, California enrollment
  • 3,617 clinicians in this Medicare group
NPI 1417907940 (650) 498-6762
University Of California Sfgh Medical Group
25 mi
Endocrinology, Diabetes & Metabolism
2540 23RD ST, 2ND FLOOR, ROOM 2110
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 637 clinicians in this Medicare group
NPI 1265407381 (415) 514-9031

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EIRI INENAGA MS, OTR/L
Occupational Therapist (Pediatrics)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8218
WENDY LEIGH ADAMS ARNP
Nurse Practitioner (Neonatal)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
KEVIN WEI-HAN CHI MD
Pediatrics
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
ASHEEN RAMA MD
Anesthesiology (Pediatric Anesthesiology)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
CRYSTAL LEE MACKALL MD
Pediatrics (Pediatric Hematology-Oncology)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
KRISTI LYNNE O'CONNOR OT
Occupational Therapist
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
LAUREN GENNA ROOS NP
Nurse Practitioner
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
SHALINI MITTAL MD
Hospitalist
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000

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 Sonia Bonifacio's NPI number?

The NPI number for Sonia Bonifacio is 1891915401. It was assigned to this individual provider in the NPPES registry on April 26, 2007. The provider is also known as Sonia Cristina Lomeli M.D..

Where is Sonia Bonifacio located?

Sonia Bonifacio practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.

What is Sonia Bonifacio's specialty?

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

Is Sonia Bonifacio enrolled in Medicare?

Yes. Sonia Bonifacio is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sonia Bonifacio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sonia Bonifacio reassigns Medicare benefits to 2 organizations: Lpch Medical Group Div Of Lucile (Palo Alto, CA) and University Of California Sfgh Medical Group (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 Sonia Bonifacio'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 Sonia Bonifacio was last updated on April 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.