JAMA Netw Open
Datasets as TopicHospitals, PediatricInpatients
Dr. Joanna K. Leyenaar, MD
NPI1083947659
- Publications
- 107
- Hospital affiliations
- 1
- Medical groups
- 2
- State licenses
- 2
- Year NPI issued
- 2009
- Practice address
- 1 Medical Center Drive, Lebanon, NH 03756
- Practice phone
- Call (603) 650-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leyenaar'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. Joanna K. Leyenaar is a pediatrician in Lebanon, New Hampshire
Dr. Leyenaar practices at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, part of Dartmouth-Hitchcock Health.
Dr. Leyenaar's NPI, 1083947659, was assigned on September 14, 2009. Dr. Leyenaar holds New Hampshire license 17884.
NPI and contact details
- NPI
- 1083947659NPI Registry (opens in a new tab)
- NPI enumeration date
- September 14, 2009
- NPI status
- Active
- Practice phone
- (603) 650-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Joanna K. Leyenaar practices at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire
Dr. Leyenaar's primary practice is Dartmouth Hitchcock Medical Center, at 1 Medical Center Drive, Lebanon, NH 03756 in Grafton County. The practice phone is (603) 650-5000.
- Dartmouth Hitchcock Medical Center1 Medical Center Drive, Lebanon, NH 03756 · Grafton CountyPhone(603) 650-5000
Source: Dmand AI Affiliation Data
Dr. Joanna K. Leyenaar is affiliated with 1 site of care and 2 medical groups
Dr. Leyenaar's primary practice is Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, part of Dartmouth-Hitchcock Health. The medical group on file is Dartmouth Hitchcock Clinics Manchester. Dmand AI also links Dr. Leyenaar to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joanna K. Leyenaar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leyenaar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dartmouth Hitchcock Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Leyenaar practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Dartmouth-Hitchcock Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joanna K. Leyenaar is one of 265 pediatricians in New Hampshire
Pediatrics is Dr. Leyenaar's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dmand AI has Dr. Leyenaar's licenses on file in 2 states: New Hampshire and Massachusetts.
Specialties and state licenses
- Pediatrics, New HampshirePrimary
- Massachusetts license
Pediatricians near Dr. Leyenaar
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
265pediatricians in New Hampshire72pediatricians in Lebanon61pediatricians at Dartmouth Hitchcock Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joanna K. Leyenaar's patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Dr. Leyenaar's median patient age at 15, with 54% women.
Dr. Leyenaar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Joanna K. Leyenaar has 107 publications on record
Dmand AI links 107 papers to Dr. Leyenaar, published from 2014 to 2025. 2020 was the busiest year, with 8. The most frequent topics are Hospitals, Pediatric, Emergency Service, Hospital and Patient Discharge. Dr. Leyenaar has published most often in Pediatrics. Dr. Leyenaar's most frequent co-authors are Corrie McDaniel, DO, Rita M. Mangione-Smith and Ryan S. Bode, MD.
Papers107
Years published2014 to 2025
Dr. Leyenaar's papers by year, 2016 to 2025
Topics Dr. Leyenaar writes about most
- Hospitals, Pediatric
- Emergency Service, Hospital
- Patient Discharge
- Pediatrics
- Caregivers
- Length of Stay
- Qualitative Research
- Mental Health
Dr. Leyenaar's most frequent co-authors
- Corrie McDaniel, DO13 shared papers
- Rita M. Mangione-Smith9 shared papers
- Ryan S. Bode, MD6 shared papers
Recent publications by Dr. Leyenaar
JAMA Netw Open
Cesarean SectionInfant, Low Birth WeightInfant, Small for Gestational Age
See who Dr. Leyenaar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leyenaar works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Joanna K. Leyenaar'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 |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Joanna K. Leyenaar
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. Joanna K. Leyenaar's NPI number?
Dr. Joanna K. Leyenaar's NPI number is 1083947659. It was assigned on September 14, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Joanna K. Leyenaar?
Dr. Joanna K. Leyenaar is a pediatrician in Lebanon, New Hampshire. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Joanna K. Leyenaar practice?
Dr. Leyenaar practices at 1 Medical Center Drive, Lebanon, NH 03756. Dr. Leyenaar's primary practice is Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, part of Dartmouth-Hitchcock Health. Dmand AI also links Dr. Leyenaar to 1 medical group.
What is Dr. Joanna K. Leyenaar's office phone number?
The practice phone on file for Dr. Leyenaar is (603) 650-5000.
What is Dr. Joanna K. Leyenaar's medical license number?
Dr. Leyenaar holds New Hampshire license 17884, one of the licenses on file in 2 states.
Which states has Dr. Joanna K. Leyenaar been licensed in?
Dmand AI has state licenses on file for Dr. Leyenaar in New Hampshire and Massachusetts.
Which hospitals is Dr. Joanna K. Leyenaar affiliated with?
Dr. Leyenaar practices at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire.
What medical group is Dr. Joanna K. Leyenaar part of?
Dr. Leyenaar is linked to Dartmouth Hitchcock Clinics Manchester. Dmand AI links Dr. Leyenaar to 1 more medical group.
How long has Dr. Joanna K. Leyenaar been practicing?
Dr. Leyenaar graduated from medical school in 2001, 25 years ago.
Does Dr. Joanna K. Leyenaar do research?
Dmand AI links 107 publications to Dr. Leyenaar, published from 2014 to 2025.
Who does Dr. Joanna K. Leyenaar publish with?
Dr. Leyenaar's most frequent co-authors are Corrie McDaniel, DO (13 shared papers), Rita M. Mangione-Smith (9 shared papers) and Ryan S. Bode, MD (6 shared papers).
Selling to pediatrics practices?
See pediatricians in New Hampshire by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card