NPPES file of Aug 9, 2026

Matthew Ian Johnson

Peer Specialist · Redwood City, CA

Matthew Ian Johnson is a peer specialist with a practice address in Redwood City, California, and NPI 1093371072, issued on May 14, 2019. Check the license (California MPSS-WCERJQ, as entered in NPPES) with the California board that licenses this profession; 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
1093371072
Name
Matthew Ian Johnson
Primary taxonomy
Peer Specialist 175T00000X
License number
MPSS-WCERJQ CA
Self-reported in NPPES; status is on the state search
Practice location
200 Edmonds RD, Redwood City, CA 94062
Phone
(650) 226-8098
Enumerated
May 14, 2019
Record last updated
Sep 8, 2025
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.
Download card Updates feed

Also registered at 200 Edmonds RD

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

  1. Josephine AraniasLicensed Vocational Nurse1942968219
  2. Aedrianne ArzadonPsychiatric/Mental Health Registered Nurse1629808845
  3. Honorina Atanque, RNRegistered Nurse1144421280
  4. Herbert BarnuevoPsychiatric/Mental Health Registered Nurse1407468028
  5. John BartasPeer Specialist1659251999
  6. Sherry Chat BautistaPsychiatric/Mental Health Registered Nurse1942801493

Verify Matthew Ian Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license MPSS-WCERJQ
    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
Find 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Matthew Ian Johnson among 4,528 peer specialist records in California

Matthew Ian Johnson is one of 4,528 peer specialist records with a practice address in California. 0% 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 2019, is newer than 19% of them.

  • NPI issued2019 · 19% of these records are older, 75% newer
  • In a Medicare fileNo · 0% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2025 · 15% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 peer specialist records list a practice address in Redwood City

They are 39 of the 2,795 NPPES records with a practice address in Redwood City, and 4,528 peer specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 peer specialist records with the nearest ZIP codes

  1. John BartasRedwood City, CA 940621659251999
  2. Jeffery BottRedwood City, CA 940621023882727
  3. Eres CahillRedwood City, CA 940621902679228
  4. Natalie ChoiRedwood City, CA 940621912594656
  5. Stephanie EngRedwood City, CA 940621053068908
  6. Jesus FernandezRedwood City, CA 940621699383117
  7. Alexis GreenRedwood City, CA 940621679458921
  8. Jeff HolemanRedwood City, CA 940621235950155

Common questions

What is Matthew Ian Johnson's NPI number?

Matthew Ian Johnson's National Provider Identifier (NPI) is 1093371072, issued on May 14, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Ian Johnson located?

The NPPES record lists a practice address at 200 Edmonds RD, Redwood City, CA, 94062. Phone: (650) 226-8098. Providers update this record themselves, so call before visiting.

How can I verify Matthew Ian Johnson's license?

NPPES lists California license number MPSS-WCERJQ, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

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.