NPPES file of Aug 9, 2026

Benjamin G. Griggs, M.D.

Child & Adolescent Psychiatry Physician · San Mateo, CA

Benjamin G. Griggs, M.D. is a child & adolescent psychiatry physician with a practice address in San Mateo, California, and NPI 1245258219, issued on Jul 18, 2006. Check the license (California C42608, 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
1245258219
Name
Benjamin G. Griggs
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
C42608 CA
Self-reported in NPPES; status is on the state search
Practice location
327 N San Mateo Dr, San Mateo, CA 94401
Phone
(650) 343-8366
Enumerated
Jul 18, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(650) 343-8827
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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8 nearest child & adolescent psychiatry physician records → All 1,009 in California → Look up another NPI →

Also registered at 327 N San Mateo Dr

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

  1. W. Brown, M.D.Pain Medicine Physician1932402633
  2. Theodore Gradman, PH.D.Cognitive & Behavioral Psychologist1467666420
  3. Kathleen Hynes, MFTMarriage & Family Therapist1265464135
  4. Lois Mark, LCSWMarriage & Family Therapist1215077730
  5. Tatiana Pekker, MFTMarriage & Family Therapist1881958650
  6. Jonathon Rose, PH.D.Adult Development & Aging Psychologist1154382380

Verify Benjamin G. Griggs in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C42608    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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Benjamin G. Griggs among 1,009 child & adolescent psychiatry physician records in California

Benjamin G. Griggs, M.D. is one of 1,009 child & adolescent psychiatry physician records with a practice address in California. 55% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileNo · 55% of these records are
  • In the CMS Doctors and Clinicians fileNo · 21% of these records are
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in California

There are 1,009 child & adolescent psychiatry physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,009 in California → Every provider in San Mateo → Child & Adolescent Psychiatry Physician nationwide →

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Joonhee Cho, MDSan Mateo, CA 944021811428360
  2. Jason Takeuchi, M.D.San Mateo, CA 944021265593602
  3. Melissa Garzon, M.D., MPHSan Mateo, CA 944031528454972
  4. Tamar Meidav, M.D.San Mateo, CA 944031154571123
  5. Rohn Nahmias, DOSan Mateo, CA 944031568922938
  6. Tanya Ngo, MDSan Mateo, CA 944031326738535
  7. Bahar Hashemi, MDPalo Alto, CA 943061992959373
  8. Alicia Cho, DOStanford, CA 943051316432735

Common questions

What is Benjamin G. Griggs, M.D.'s NPI number?

Benjamin G. Griggs, M.D.'s National Provider Identifier (NPI) is 1245258219, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin G. Griggs, M.D. located?

The NPPES record lists a practice address at 327 N San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 343-8366. Providers update this record themselves, so call before visiting.

How can I verify Benjamin G. Griggs, M.D.'s license?

NPPES lists California license number C42608, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.