Dr. Justin T. Hagen, DO
- Hospital affiliations
- 1
- Industry payments
- $2,819
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2008
- Practice address
- 615 New Ballas Road, Saint Louis, MO 63141
- Practice phone
- Call (314) 251-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hagen'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. Justin T. Hagen is a pediatrician in Saint Louis, Missouri
Dr. Hagen practices at Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
Dr. Hagen's NPI, 1811152044, was assigned on July 28, 2008. Dr. Hagen holds Missouri license 2011012289.
- NPI
- 1811152044NPI Registry (opens in a new tab)
- NPI enumeration date
- July 28, 2008
- NPI status
- Active
- Practice phone
- (314) 251-6000
- 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. Justin T. Hagen practices at Mercy Hospital St. Louis in Saint Louis, Missouri
Dr. Hagen's primary practice is Mercy Hospital St. Louis, at 615 New Ballas Road, Saint Louis, MO 63141 in St. Louis County. The practice phone is (314) 251-6000.
- Mercy Hospital St. Louis615 New Ballas Road, Saint Louis, MO 63141 · St. Louis CountyPhone(314) 251-6000
Source: Dmand AI Affiliation Data
Dr. Justin T. Hagen is affiliated with 2 sites of care and 2 medical groups
Dr. Hagen's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. The medical group on file is Mercy Clinic East Communities. Dmand AI also links Dr. Hagen to 1 more 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. Justin T. Hagen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hagen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital St. Louis | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Justin T. Hagen is one of 1,158 pediatricians in Missouri
Pediatrics is Dr. Hagen's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Hagen is licensed in Missouri.
Specialties and state licenses
- Pediatrics, MissouriPrimary
Pediatricians near Dr. Hagen
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. Justin T. Hagen's patients have a median age of 7
Across all payers, Dmand AI patient panel data puts Dr. Hagen's median patient age at 7, with 38% women.
Dr. Hagen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 7
Patient panel by sex, all payers
- Women38%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. Justin T. Hagen received $2,819 in industry payments from 2016 to 2020
CMS Open Payments shows 37 general payments to Dr. Hagen from 14 drug and device companies from 2016 to 2020. Honoraria make up the largest share, 78% of the total. Greer Laboratories, Inc. paid the most, $2,260.
General payments to Dr. Hagen by program year, 2016 to 2020
General payments to Dr. Hagen by kind, 2016 to 2020
- Honoraria$2,20078%
- Food and beverage$61922%
Companies that paid Dr. Hagen the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Justin T. Hagen'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. Justin T. Hagen
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. Justin T. Hagen's NPI number?
Dr. Justin T. Hagen's NPI number is 1811152044. It was assigned on July 28, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Justin T. Hagen?
Dr. Justin T. Hagen is a pediatrician in Saint Louis, Missouri. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Justin T. Hagen practice?
Dr. Hagen practices at 615 New Ballas Road, Saint Louis, MO 63141. Dr. Hagen's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Dmand AI also links Dr. Hagen to 1 group practice or clinic and 1 medical group.
What is Dr. Justin T. Hagen's office phone number?
The practice phone on file for Dr. Hagen is (314) 251-6000.
What is Dr. Justin T. Hagen's medical license number?
Dr. Hagen holds Missouri license 2011012289.
Which hospitals is Dr. Justin T. Hagen affiliated with?
Dr. Hagen practices at Mercy Hospital St. Louis in Saint Louis, Missouri.
What medical group is Dr. Justin T. Hagen part of?
Dr. Hagen is linked to Mercy Clinic East Communities. Dmand AI links Dr. Hagen to 1 more medical group.
Has Dr. Justin T. Hagen received payments from drug or device companies?
CMS Open Payments shows $2,819 in general payments to Dr. Hagen from 14 companies from 2016 to 2020. The largest total came from Greer Laboratories, Inc.
How long has Dr. Justin T. Hagen been practicing?
Dr. Hagen's NPI was assigned in 2008.
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