Mary Grace Leong, CDE, RD
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2012
- Practice address
- 222 W 39th Ave, San Mateo, CA 94403
- Practice phone
- Call (650) 573-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mary Leong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mary Grace Leong is a registered dietitian in San Mateo, California
Mary Leong practices at San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California.
Mary Leong's NPI, 1437401031, was assigned on October 5, 2012.
- NPI
- 1437401031NPI Registry (opens in a new tab)
- NPI enumeration date
- October 5, 2012
- NPI status
- Active
- Practice phone
- (650) 573-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Mary Grace Leong practices at San Mateo Medical Center in San Mateo, California
Mary Leong's primary practice is San Mateo Medical Center, at 222 W 39th Ave, San Mateo, CA 94403 in San Mateo County. The practice phone is (650) 573-2222.
- San Mateo Medical Center222 W 39th Ave, San Mateo, CA 94403 · San Mateo CountyPhone(650) 573-2222
Source: Dmand AI Affiliation Data
Mary Grace Leong is affiliated with 3 sites of care and 1 medical group
Mary Leong's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. The medical group on file is San Mateo Medical Center. Dmand AI also links Mary Leong to 1 more community health center and 1 skilled nursing facility, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mary Grace Leong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Leong practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Mateo Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across County of San Mateo, California and 6.2K+ hospitals, with verified contacts in the same login.
Mary Grace Leong is one of 1,141 registered dietitians in California
Dietitian, registered is Mary Leong's primary specialty in the NPI Registry, under taxonomy code 133V00000X.
Specialties and state licenses
- Registered dietitianPrimary
Registered dietitians near Mary Leong
Counts of registered dietitians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mary Grace Leong's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Mary Leong's median patient age at 54, with 80% women.
Mary Leong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women80%
- Men20%
Source: Dmand AI Patient Panel Data
Sources for Mary Grace Leong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mary Grace Leong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Grace Leong's NPI number?
Mary Grace Leong's NPI number is 1437401031. It was assigned on October 5, 2012, and it is active in the NPI Registry.
What does Mary Grace Leong specialize in?
Mary Grace Leong is a registered dietitian in San Mateo, California. The primary specialty in the NPI Registry is Registered Dietitian (taxonomy code 133V00000X).
Where does Mary Grace Leong practice?
Mary Leong practices at 222 W 39th Ave, San Mateo, CA 94403. Mary Leong's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. Dmand AI also links Mary Leong to 1 community health center and 1 skilled nursing facility.
What is Mary Grace Leong's office phone number?
The practice phone on file for Mary Leong is (650) 573-2222.
Which hospitals is Mary Grace Leong affiliated with?
Mary Leong practices at San Mateo Medical Center in San Mateo, California.
What medical group is Mary Grace Leong part of?
Mary Leong is linked to San Mateo Medical Center.
How long has Mary Grace Leong been practicing?
Mary Leong graduated from medical school in 1985, 41 years ago.
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