NPPES file of Aug 9, 2026

Jacob Johnson, MD

Psychiatry Physician · San Mateo, CA

Jacob Johnson, MD is a psychiatry physician with a practice address in San Mateo, California, and NPI 1194309724, issued on May 10, 2021. Check the license (California A184926, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194309724
Name
Jacob Johnson
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A184926 CA
Self-reported in NPPES; status is on the state search
Practice location
225 37TH Ave, San Mateo, CA 94403
Phone
(650) 573-2222
Enumerated
May 10, 2021
Record last updated
Apr 16, 2023
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 225 37TH Ave

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

  1. Indiana Albanes, BASocial Worker1457509291
  2. Christian AlzubiMarriage & Family Therapist1861735409
  3. Laura Angel MartinezCommunity Health Worker1285077370
  4. Jennifer ArmstrongCase Manager/Care Coordinator1124513924
  5. Nicole Armstrong, M.A.Student in an Organized Health Care Education/Training Program1376975623
  6. Nabeel AsifStudent in an Organized Health Care Education/Training Program1700321593

Verify Jacob Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A184926
    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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62% fewer Medicare Part D claims than the average psychiatry physician in 2024

383 Medicare Part D claims for 19 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Jacob Johnson383
  2. Specialty average1,000

Most prescribed

  1. Fluoxetine Hcl35 claims
  2. Trazodone Hcl25 claims
  3. Hydroxyzine Hcl24 claims
  4. Lurasidone Hcl24 claims
  5. Duloxetine Hcl17 claims
  6. Aripiprazole15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $111.58

1 payment: food and beverage; the largest payer was Indivior Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jacob Johnson$111.58
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Jacob Johnson among 8,673 psychiatry physician records in California

Jacob Johnson, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2023 · 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 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

89 psychiatry physician records list a practice address in San Mateo

They are 89 of the 3,909 NPPES records with a practice address in San Mateo, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Kathleen Akiyama, M.D.San Mateo, CA 944031194886879
  2. Nasrin Bashiri, MDSan Mateo, CA 944031700974920
  3. Hung-Ming Chu, M.D.San Mateo, CA 944031790834174
  4. Vikas Duvvuri, M.D., PH.D.San Mateo, CA 944031255470480
  5. D. Feeley, M.D.San Mateo, CA 944031548351158
  6. Mina Fisher, M.D.San Mateo, CA 944031124037874
  7. Nandini Ganpule, MDSan Mateo, CA 944031326110156
  8. Lynne Haynes-Tucker, MDSan Mateo, CA 944031689737157

Common questions

What is Jacob Johnson, MD's NPI number?

Jacob Johnson, MD's National Provider Identifier (NPI) is 1194309724, issued on May 10, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Jacob Johnson, MD located?

The NPPES record lists a practice address at 225 37TH Ave, San Mateo, CA, 94403. Phone: (650) 573-2222. Providers update this record themselves, so call before visiting.

How can I verify Jacob Johnson, MD's license?

NPPES lists California license number A184926, 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.

How much does Jacob Johnson, MD prescribe under Medicare Part D?

In 2024, Jacob Johnson, MD had 383 Medicare Part D claims for 19 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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. 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.