NPPES file of Aug 9, 2026

Mary Beth Leonard, MD

Pediatric Nephrology Physician · Palo Alto, CA

Mary Beth Leonard, MD is a pediatric nephrology physician with a practice address in Palo Alto, California, and NPI 1033133046, issued on Jul 26, 2006. Check the license (California G132734, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033133046
Name
Mary Beth Leonard
Credential
MD
Primary taxonomy
Pediatric Nephrology Physician 2080P0210X
License numbers
G132734 CA
MD045594L PA
Self-reported in NPPES; status is on the state search
Practice location
725 Welch RD, Palo Alto, CA 94304
Phone
(650) 497-8000
Enumerated
Jul 26, 2006
Record last updated
Apr 16, 2024
Medicaid IDs
7291604 NJ
001647480 PA
Medicare enrollment
Enrolled (PECOS I20150303002497); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 725 Welch RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shayda Abadi, NPNurse Practitioner1316745540
  2. Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
  3. Alexandra Abbott, MDPediatrics Physician1760018675
  4. Steven Abboud, MDAnesthesiology Physician1619364908
  5. Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
  6. Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235

Verify Mary Beth Leonard in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G132734
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Lpch Medical Group Div OF LucilePalo Alto, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Beth Leonard among 116 pediatric nephrology physician records in California

Mary Beth Leonard, MD is one of 116 pediatric nephrology physician records with a practice address in California. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 57% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1989 · median 2007 among the 61 with a school on file
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0210X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Nephrology Physician providers in California

There are 116 pediatric nephrology physician records in California.

The 8 pediatric nephrology physician records with the nearest ZIP codes

  1. Steven Alexander, MDPalo Alto, CA 943041790709202
  2. Abanti Chaudhuri, MDPalo Alto, CA 943041760665350
  3. Paul Grimm, MDPalo Alto, CA 943041184705386
  4. Sara Kibrom, MDPalo Alto, CA 943041821485103
  5. Shina Menon, M.D.Palo Alto, CA 943041750585055
  6. Jerome Murphy, M.D.Palo Alto, CA 943041003828955
  7. Ruby Patel, MDPalo Alto, CA 943041275927691
  8. Donald Potter, M.D.Palo Alto, CA 943041700800232

Common questions

What is Mary Beth Leonard, MD's NPI number?

Mary Beth Leonard, MD's National Provider Identifier (NPI) is 1033133046, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Beth Leonard, MD located?

The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.

How can I verify Mary Beth Leonard, MD's license?

NPPES lists California license number G132734, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.