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Dr. Brian Johnson, MD
NPI1861531808
- Part D claims, 2024
- 176
- Publications
- 2
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2007
- Practice address
- 2500 Alhambra Ave, Martinez, CA 94553
- Practice phone
- Call (505) 272-6225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Johnson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Brian Johnson is a family medicine physician in Martinez, California
Dr. Johnson practices with West County Adult Mental Health Services, a medical group.
Dr. Johnson's NPI, 1861531808, was assigned on February 6, 2007. Dr. Johnson graduated from University Of Washington School Of Medicine in 2006. Dr. Johnson's New Mexico license number on file is 2006-0331.
NPI and contact details
- NPI
- 1861531808NPI Registry (opens in a new tab)
- NPI enumeration date
- February 6, 2007
- NPI status
- Active
- Practice phone
- (505) 272-6225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Brian Johnson's practice address is in Martinez, California
Dr. Johnson's practice address in the NPI Registry is 2500 Alhambra Ave, Martinez, CA 94553, in Contra Costa County. The practice phone is (505) 272-6225.
- NPI Registry address2500 Alhambra Ave, Martinez, CA 94553 · Contra Costa CountyPhone(505) 272-6225
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Brian Johnson is affiliated with 1 medical group
Dr. Johnson is part of West County Adult Mental Health Services, a medical group in Martinez, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Brian Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West County Adult Mental Health Services | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across West County Adult Mental Health Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Brian Johnson is one of 15,680 family medicine physicians in California
Family medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Johnson is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Johnson's licenses on file in 2 states: New Mexico and California.
Specialties and state licenses
- Family medicine, New MexicoPrimary
- California license
Family medicine physicians near Dr. Johnson
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
15,680family medicine physicians in California140family medicine physicians in Martinez118family medicine physicians at West County Adult Mental Health Services
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Brian Johnson wrote 176 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 176 Medicare Part D claims for 47 patients. 81% of them were for generic drugs. CMS names the drug for 46 of them, across 3 drugs with 11 or more claims each, at $388 in total drug cost. In 2016, CMS named 12 claims across 1 drug.
Part D claims, 2024176
Drugs named by CMS3
Total drug cost$388
Part D patients47
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic142 claims81%
- Brand-name and other34 claims19%
Dr. Johnson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2024
- 2016
- 2024
- Claims for drugs CMS names
- 2016: 122024: 46283%
Drugs named by CMS: 3 in 2024, 1 in 2016.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Brian Johnson has 2 publications on record
Dmand AI links 2 papers to Dr. Johnson, published from 2017 to 2018. Dr. Johnson's most frequent co-authors are William E. Cayley, MD, MDIV, Ann E. Evensen, MD and Bich-May Nguyen.
Papers2
Years published2017 to 2018
Dr. Johnson's most frequent co-authors
- William E. Cayley, MD, MDIV1 shared paper
- Ann E. Evensen, MD1 shared paper
- Bich-May Nguyen1 shared paper
Recent publications by Dr. Johnson
Africa South of the SaharaEducation, Medical, GraduateFaculty, Medical
See who Dr. Johnson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnson works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Brian Johnson graduated from University Of Washington School Of Medicine
Dr. Johnson graduated from University Of Washington School Of Medicine in 2006.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Johnson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Brian Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Brian Johnson's NPI number?
Dr. Brian Johnson's NPI number is 1861531808. It was assigned on February 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Johnson?
Dr. Brian Johnson is a family medicine physician in Martinez, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Brian Johnson practice?
Dr. Johnson practices at 2500 Alhambra Ave, Martinez, CA 94553. Dr. Johnson's primary practice is West County Adult Mental Health Services, a medical group.
What is Dr. Brian Johnson's office phone number?
The practice phone on file for Dr. Johnson is (505) 272-6225.
What is Dr. Brian Johnson's medical license number?
Dr. Johnson's New Mexico license number on file is 2006-0331, one of the licenses on file in 2 states.
Which states has Dr. Brian Johnson been licensed in?
Dmand AI has state licenses on file for Dr. Johnson in New Mexico (2006 to 2011) and California (2009 to 2027).
What medical group is Dr. Brian Johnson part of?
Dr. Johnson is part of West County Adult Mental Health Services in Martinez, California.
Is Dr. Brian Johnson board certified?
Yes. Dr. Johnson is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. Brian Johnson go to medical school?
Dr. Johnson graduated from University Of Washington School Of Medicine in 2006.
What drugs does Dr. Brian Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Metoprolol Succinate, Tamsulosin HCl and Metformin HCl ER.
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How long has Dr. Brian Johnson been practicing?
Dr. Johnson graduated from medical school in 2006, 20 years ago.
Does Dr. Brian Johnson do research?
Dmand AI links 2 publications to Dr. Johnson, published from 2017 to 2018.
Who does Dr. Brian Johnson publish with?
Dr. Johnson's most frequent co-authors are William E. Cayley, MD, MDIV (1 shared paper), Ann E. Evensen, MD (1 shared paper) and Bich-May Nguyen (1 shared paper).
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