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MS. MARY GRACE LEONG RD, CDE
NPI 1437401031
Dietitian, Registered in Redwood City, CA

Active since October 05, 2012
2710 MIDDLEFIELD RD, REDWOOD CITY, CA 94063(650) 578-7141(650) 366-4732 Get Directions Write a Review

NPPES record last updated: June 16, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ms. Mary Grace Leong Rd, Cde NPPES

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

MS. MARY GRACE LEONG RD, CDE (NPI 1437401031) is an individual dietitian, registered in Redwood City, California, licensed in (706151) and active in the NPI registry since October 2012.

NPPES Registry Identity

NPI1437401031
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameMS. MARY GRACE LEONGCredential: RD, CDE
Location Address2710 MIDDLEFIELD RDRedwood City, CA 94063-3404
Mailing Address2710 Middlefield RdRedwood City, CA 94063-3404 · (650) 578-7141 · Fax (650) 366-4732
Phone(650) 578-7141
Fax(650) 366-4732
Sole ProprietorNo
Enumeration DateOctober 5, 2012
Last NPPES UpdateJune 16, 2016
✔ NPI 1437401031 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed · 706151
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
2710 MIDDLEFIELD RD, Redwood City, CA 94063
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Other Names 1

Former Name (1)Ms. Mary Grace Jue

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Mary Grace Leong Rd, Cde is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Mary Leong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of San Mateo
Same address
Multi-Specialty
2710 MIDDLEFIELD RD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1831268580 (California)
  • 597 clinicians in this Medicare group
NPI 1871529073 (650) 573-2120

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.

DR. ALISON LAURA PACHYNSKI MD MPH
Internal Medicine
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 364-6010
JEANETTE AVILES MD
Internal Medicine
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 573-2222
GIZELLA SHEILA LAKSANA M.D.
Pediatrics
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 578-7141
GABRIELA VALENCIA FNP
Nurse Practitioner (Family)
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 578-7141
COUNTY OF SAN MATEO
Clinic/Center (Federally Qualified Health Center (FQHC))
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 599-3890
DR. SONA AGGARWAL MD
Internal Medicine
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 366-6010
MARY LORETTA DAVILA R.D. IBCLC
Dietitian, Registered
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 578-7141
MRS. VANESSA LANGSTON BREEN NP
Nurse Practitioner (Family)
2710 MIDDLEFIELD RD
REDWOOD CITY, CA 94063
San Mateo County (650) 364-6010

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 Mary Leong's NPI number?

The NPI number for Mary Leong is 1437401031. It was assigned to this individual provider in the NPPES registry on October 5, 2012. The provider is also known as Ms. Mary Grace Jue.

Where is Mary Leong located?

Mary Leong practices at 2710 Middlefield Rd, Redwood City, CA 94063. The listed phone number is (650) 578-7141.

What is Mary Leong's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Mary Leong enrolled in Medicare?

Yes. Mary Leong is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Leong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Leong reassigns Medicare benefits to County Of San Mateo (Redwood City, CA). The 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 Mary Leong'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 Mary Leong was last updated on June 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.