Dr. Katherine Johnston, MD
- Publications
- 1
- Industry payments
- $663
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 9
- Practice address
- 3838 California St, San Francisco, CA 94118
- Practice phone
- Call (415) 476-4424
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSF Health Medical Foundation
San Francisco, California
Find Dr. 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.
Dr. Katherine Johnston is a pediatrician in San Francisco, California
Dr. Johnston practices at UCSF Health Medical Foundation in San Francisco, California.
Dr. Johnston's NPI, 1811197908, was assigned on July 18, 2007. Dr. Johnston holds California license A104412.
- NPI
- 1811197908NPI Registry (opens in a new tab)
- NPI enumeration date
- July 18, 2007
- NPI status
- Active
- Practice phone
- (415) 476-4424
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Katherine Johnston practices at UCSF Health Medical Foundation in San Francisco, California
Dr. Johnston's primary practice is UCSF Health Medical Foundation, at 3838 California St, San Francisco, CA 94118 in San Francisco County. The practice phone is (415) 476-4424.
- UCSF Health Medical Foundation3838 California St, San Francisco, CA 94118 · San Francisco CountyPhone(415) 476-4424
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Katherine Johnston is affiliated with 2 sites of care and 1 medical group
Dr. Johnston's primary practice is UCSF Health Medical Foundation in San Francisco, California. The medical group on file is UCSF Benioff Children’s Physicians. Dmand AI also links Dr. Johnston to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Katherine Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSF Health Medical Foundation | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Johnston is one of 8,236 pediatricians in California
Pediatrics is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Johnston is board certified in pediatrics by the American Board of Pediatrics. Dr. Johnston is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Johnston
Counts of pediatricians 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
Dr. Katherine Johnston's patients have a median age of 13
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 13, with 51% women.
Dr. 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 13
Patient panel by sex, all payers
- Women51%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Katherine Johnston has 1 publication on record
Dmand AI links 1 paper to Dr. Johnston in 2015. Dr. Johnston's most frequent co-authors are Suzanne Denise Debrosse, MD, David Martin Koeller, MD and Ashok K. Verma.
Dr. Johnston's most frequent co-authors
- Suzanne Denise Debrosse, MD1 shared paper
- David Martin Koeller, MD1 shared paper
- Ashok K. Verma1 shared paper
Recent publications by Dr. Johnston
See who Dr. Johnston researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnston works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Katherine Johnston received $663 in industry payments from 2016 to 2025
CMS Open Payments shows 30 general payments to Dr. Johnston from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $171.
General payments to Dr. Johnston by program year, 2016 to 2025
Companies that paid Dr. Johnston the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Johnston is board certified in pediatrics
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Katherine Johnston accepts plans from 9 insurance carriers
Dr. Johnston is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +1 more carriersWith a free account
Plan types Dr. Johnston accepts, by number of carriers
- PPO7
- Medicare6
- HMO4
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Katherine 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Katherine 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 Dr. Katherine Johnston's NPI number?
Dr. Katherine Johnston's NPI number is 1811197908. It was assigned on July 18, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Johnston?
Dr. Katherine Johnston is a pediatrician in San Francisco, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Katherine Johnston practice?
Dr. Johnston practices at 3838 California St, San Francisco, CA 94118. Dr. Johnston's primary practice is UCSF Health Medical Foundation in San Francisco, California. Dmand AI also links Dr. Johnston to 1 group practice or clinic.
What is Dr. Katherine Johnston's office phone number?
The practice phone on file for Dr. Johnston is (415) 476-4424.
What is Dr. Katherine Johnston's medical license number?
Dr. Johnston holds California license A104412.
What medical group is Dr. Katherine Johnston part of?
Dr. Johnston is linked to UCSF Benioff Children’s Physicians.
Is Dr. Katherine Johnston board certified?
Yes. Dr. Johnston is board certified in pediatrics by the American Board of Pediatrics.
Has Dr. Katherine Johnston received payments from drug or device companies?
CMS Open Payments shows $663 in general payments to Dr. Johnston from 11 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Katherine Johnston been practicing?
Dr. Johnston's NPI was assigned in 2007.
Does Dr. Katherine Johnston do research?
Dmand AI links 1 publication to Dr. Johnston.
Who does Dr. Katherine Johnston publish with?
Dr. Johnston's most frequent co-authors are Suzanne Denise Debrosse, MD (1 shared paper), David Martin Koeller, MD (1 shared paper) and Ashok K. Verma (1 shared paper).
What insurance does Dr. Katherine Johnston accept?
Dr. Johnston is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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