Barbara L. Johnston, PhD
- Affiliated sites
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2010
- Practice address
- 3081 Teagarden Street, San Leandro, CA 94577
- Practice phone
- Call (510) 347-4620
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Davis Street Primary Care Clinic
FQHC - Main Site · San Leandro, California
Find Barbara Johnston'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.
Barbara L. Johnston is a psychologist in San Leandro, California
Barbara Johnston practices at Davis Street Primary Care Clinic in San Leandro, California.
Barbara Johnston's NPI, 1982924965, was assigned on June 1, 2010.
- NPI
- 1982924965NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961877980
- NPI enumeration date
- June 1, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 347-4620
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Barbara L. Johnston practices at Davis Street Primary Care Clinic in San Leandro, California
Barbara Johnston's primary practice is Davis Street Primary Care Clinic, at 3081 Teagarden Street, San Leandro, CA 94577 in Alameda County. The practice phone is (510) 347-4620.
- Davis Street Primary Care Clinic3081 Teagarden Street, San Leandro, CA 94577 · Alameda CountyPhone(510) 347-4620
Source: Dmand AI Affiliation Data
Barbara L. Johnston is affiliated with 1 site of care and 2 medical groups
Barbara Johnston's primary practice is Davis Street Primary Care Clinic in San Leandro, California. The medical group on file is Davis Street Primary Care Clinic. Dmand AI also links Barbara Johnston to 1 more medical group, named with a free account. Barbara Johnston's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Barbara L. Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Barbara Johnston practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Davis Street Primary Care Clinic | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Barbara L. Johnston is one of 1,724 psychologists in California
Psychologist is Barbara Johnston's primary specialty in the NPI Registry, under taxonomy code 103T00000X.
Specialties and state licenses
- PsychologistPrimary
Psychologists near Barbara Johnston
Counts of psychologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Barbara L. Johnston's patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Barbara Johnston's median patient age at 39, with 61% women.
Barbara Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women61%
- Men36%
Source: Dmand AI Patient Panel Data
How Barbara L. Johnston takes part in Medicare
Barbara Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Barbara L. Johnston'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Barbara L. Johnston
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Barbara L. Johnston's NPI number?
Barbara L. Johnston's NPI number is 1982924965. It was assigned on June 1, 2010, and it is active in the NPI Registry.
What does Barbara L. Johnston specialize in?
Barbara L. Johnston is a psychologist in San Leandro, California. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).
Where does Barbara L. Johnston practice?
Barbara Johnston practices at 3081 Teagarden Street, San Leandro, CA 94577. Barbara Johnston's primary practice is Davis Street Primary Care Clinic in San Leandro, California. Dmand AI also links Barbara Johnston to 1 medical group, and a free account names each one.
What is Barbara L. Johnston's office phone number?
The practice phone on file for Barbara Johnston is (510) 347-4620. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Barbara L. Johnston's email address?
Dmand AI checks professional and personal email addresses for Barbara Johnston through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What medical group is Barbara L. Johnston part of?
Barbara Johnston is linked to Davis Street Primary Care Clinic. Dmand AI links Barbara Johnston to 1 more medical group, named with a free account.
Who employs Barbara L. Johnston?
Dmand AI has Barbara Johnston's employer on file: a community health center (fqhc). The organization's name is available with a free Dmand AI account.
Who does Barbara L. Johnston practice with?
Dmand AI links 25 HCPs to Barbara Johnston's primary medical group, 1 of them psychologist. A free account lists them, with verified contacts.
Does Barbara L. Johnston accept Medicare?
Yes. CMS lists Barbara Johnston as accepting Medicare assignment.
How long has Barbara L. Johnston been practicing?
Barbara Johnston graduated from medical school in 1997, 29 years ago.
What EHR does Barbara L. Johnston's practice use?
Dmand AI tracks the EHR system at Davis Street Primary Care Clinic and at 1 medical group. The vendor and product are available with a free Dmand AI account.
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