Dr. John Carl Hornberger, MD, MS
- Industry payments
- $114
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 5855 Silver Creek Valley Place, San Jose, CA 95138
- Practice phone
- Call (408) 574-9100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Jose VA Clinic
Outpatient Addiction Treatment · San Jose, California
Find Dr. Hornberger'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. John Carl Hornberger is an internist in San Jose, California
Dr. Hornberger practices at San Jose VA Clinic in San Jose, California.
Dr. Hornberger's NPI, 1801942909, was assigned on January 25, 2007. Dr. Hornberger holds California license G59734.
- NPI
- 1801942909NPI Registry (opens in a new tab)
- NPI enumeration date
- January 25, 2007
- NPI status
- Active
- Practice phone
- (408) 574-9100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Carl Hornberger practices at San Jose VA Clinic in San Jose, California
Dr. Hornberger's primary practice is San Jose VA Clinic, at 5855 Silver Creek Valley Place, San Jose, CA 95138. The practice phone is (408) 574-9100.
- San Jose VA Clinic5855 Silver Creek Valley Place, San Jose, CA 95138Phone(408) 574-9100
Source: Dmand AI Affiliation Data
Dr. John Carl Hornberger is affiliated with 2 sites of care and 1 medical group
Dr. Hornberger's primary practice is San Jose VA Clinic in San Jose, California. Dmand AI also links Dr. Hornberger to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Carl Hornberger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hornberger practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Jose VA Clinic | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Carl Hornberger is one of 16,751 internists in California
Internal medicine is Dr. Hornberger's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hornberger is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Hornberger
Counts of internists 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. John Carl Hornberger's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Dr. Hornberger's median patient age at 46, with 47% women.
Dr. Hornberger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. John Carl Hornberger received $114 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Hornberger from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Heron Therapeutics, Inc. paid the most, $114.
Companies that paid Dr. Hornberger the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Carl Hornberger'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 |
| Industry payments | Open Payments (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 Dr. John Carl Hornberger
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. John Carl Hornberger's NPI number?
Dr. John Carl Hornberger's NPI number is 1801942909. It was assigned on January 25, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John Carl Hornberger?
Dr. John Carl Hornberger is an internist in San Jose, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Carl Hornberger practice?
Dr. Hornberger practices at 5855 Silver Creek Valley Place, San Jose, CA 95138. Dr. Hornberger's primary practice is San Jose VA Clinic in San Jose, California. Dmand AI also links Dr. Hornberger to 1 group practice or clinic and 1 medical group.
What is Dr. John Carl Hornberger's office phone number?
The practice phone on file for Dr. Hornberger is (408) 574-9100.
What is Dr. John Carl Hornberger's medical license number?
Dr. Hornberger holds California license G59734.
Has Dr. John Carl Hornberger received payments from drug or device companies?
CMS Open Payments shows $114 in general payments to Dr. Hornberger from 1 company from 2017 to 2017. The largest total came from Heron Therapeutics, Inc.
How long has Dr. John Carl Hornberger been practicing?
Dr. Hornberger's NPI was assigned in 2007.
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