NPPES file of Aug 9, 2026

Diane Keiko Suwabe, MD

Pediatrics Physician · San Mateo, CA

Diane Keiko Suwabe, MD is a pediatrics physician with a practice address in San Mateo, California, and NPI 1316014087, issued on Nov 29, 2006. Check the license (California G64831, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1316014087
Name
Diane Keiko Suwabe
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
G64831 CA
Self-reported in NPPES; status is on the state search
Practice location
123 S San Mateo Dr, San Mateo, CA 94401
Phone
(650) 343-4200
Enumerated
Nov 29, 2006
Record last updated
Jun 19, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
GR0081923 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 123 S San Mateo Dr

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

  1. Vincent Mason, MDPediatrics Physician1669548681
  2. Laura McMullen, M.D.Pediatrics Physician1437356714
  3. Kenneth Rosenbaum, MDPediatrics Physician1407922404
  4. Christina Tan, MDPediatrics Physician1245421254
  5. Susan Valentin, R.N., M.S., N.P.Pediatric Nurse Practitioner1750697926
  6. Sarah WatermulderClinical Social Worker1376815324

Verify Diane Keiko Suwabe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G64831
    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

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Diane Keiko Suwabe among 9,272 pediatrics physician records in California

Diane Keiko Suwabe, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 56% newer
  • In a Medicare fileNo · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2020 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in California

There are 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Lois Balster, M.D.San Mateo, CA 944011568578474
  2. Jeanne Beymer, MDSan Mateo, CA 944011114913530
  3. Stephen Buchner, MDSan Mateo, CA 944011013938786
  4. Alger Chapman, MD PHDSan Mateo, CA 944011437145216
  5. Howard Chow, MDSan Mateo, CA 944011083603393
  6. Jennifer Kaufman, MDSan Mateo, CA 944011992729008
  7. Vincent Mason, MDSan Mateo, CA 944011669548681
  8. Kenneth Rosenbaum, MDSan Mateo, CA 944011407922404

Common questions

What is Diane Keiko Suwabe, MD's NPI number?

Diane Keiko Suwabe, MD's National Provider Identifier (NPI) is 1316014087, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diane Keiko Suwabe, MD located?

The NPPES record lists a practice address at 123 S San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 343-4200. Providers update this record themselves, so call before visiting.

How can I verify Diane Keiko Suwabe, MD's license?

NPPES lists California license number G64831, 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. 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.