James H. Tonsgard
- Medicare services, 2024
- 52
- Medicare patients, 2024
- 40
- Part D claims, 2024
- 838
- Publications
- 14
- Clinical trials
- 4
- Practice address
- 5841 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The University of Chicago Medical Center
Chicago, Illinois
Find James Tonsgard'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.
James H. Tonsgard is a pediatrician in Chicago, Illinois
James Tonsgard practices at The University of Chicago Medical Center in Chicago, Illinois.
James Tonsgard's NPI, 1396806717, was assigned on December 12, 2006. James Tonsgard graduated from Yale University School of Medicine in 1975. James Tonsgard holds Illinois license 036055773.
- NPI
- 1396806717NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800805789
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
James H. Tonsgard practices at The University of Chicago Medical Center in Chicago, Illinois
James Tonsgard's primary practice is The University of Chicago Medical Center, at 5841 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- The University of Chicago Medical Center5841 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
James H. Tonsgard is affiliated with 2 sites of care and 2 medical groups
James Tonsgard's primary practice is The University of Chicago Medical Center in Chicago, Illinois. James Tonsgard is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links James Tonsgard to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at James H. Tonsgard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Tonsgard practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The University of Chicago Medical Center | 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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James H. Tonsgard is one of 2,423 pediatricians in Illinois
Pediatrics is James Tonsgard's primary specialty in the NPI Registry, under taxonomy code 208000000X. James Tonsgard is licensed in Illinois.
Specialties and state licenses
- Pediatrics, IllinoisPrimary
Pediatricians near James Tonsgard
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
James H. Tonsgard billed Medicare for 52 services in 2024
CMS data shows 52 Medicare services from James Tonsgard across 2 procedure codes in 2024, for 40 Medicare patients. Medicare paid $3,901 for them.
James Tonsgard's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 422024: 5224%
Where James Tonsgard's Medicare services took place, 2024
- In an office2650%
- In a facility2650%
James Tonsgard compared with the Illinois median for pediatricians, 2024
- James Tonsgard
- Illinois median
- Medicare services
- 52vs 16068% below
- Medicare patients
- 40vs 8251% below
- Part D claims
- 640vs 2229.1 times
Medians across 297 pediatricians in Illinois with Dmand AI profiles that report each measure.
James Tonsgard's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for James Tonsgard and other pediatricians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
James H. Tonsgard treated 40 Medicare patients in 2024, average age 45
CMS counts 40 Medicare patients who saw James Tonsgard in 2024. 45% of them have anxiety, and 40% have high blood pressure. 68% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts James Tonsgard's median patient age at 34, with 53% women.
James Tonsgard's Medicare patients by sex, 2024
- Women1743%
- Men2357%
Chronic conditions among James Tonsgard's Medicare patients, 2024
- Anxiety45%
- High blood pressure40%
- Depression38%
- Mood disorders38%
- ADHD and conduct disorders30%
- High cholesterol30%
Share of Medicare patients with each condition. A patient can have several.
James Tonsgard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
James H. Tonsgard wrote 838 Medicare Part D claims in 2024
In 2024, James Tonsgard wrote 838 Medicare Part D claims for 56 patients. 87% of them were for generic drugs. CMS names the drug for 640 of them, across 24 drugs with 11 or more claims each, at $613,402 in total drug cost. In 2023, CMS named 744 claims across 29 drugs.
James Tonsgard's Part D claims by kind of drug, 2024
- Generic726 claims87%
- Brand-name91 claims11%
- Other21 claims3%
James Tonsgard's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in James Tonsgard's Part D claims, 2024
- Opioids4%34 of 838 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7442024: 64014%
Drugs named by CMS: 24 in 2024, 29 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
James H. Tonsgard offers telehealth to Medicare patients
James Tonsgard accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists James Tonsgard as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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James H. Tonsgard has 14 publications on record
Dmand AI links 14 papers to James Tonsgard, published from 2013 to 2025. 2025 was the busiest year, with 3. The most frequent topics are Neurilemmoma, Neurofibromatoses and Neurofibromatosis 1. James Tonsgard has published most often in Neurology. James Tonsgard's most frequent co-authors are Elizabeth K. Schorry, MD, Roger Packer, MD and Nicole J. Ullrich, MD.
James Tonsgard's papers by year, 2013 to 2025
Topics James Tonsgard writes about most
- Neurilemmoma
- Neurofibromatoses
- Neurofibromatosis 1
- Skin Neoplasms
- Neurofibroma, Plexiform
- Pain Measurement
- Patient Reported Outcome Measures
- Bevacizumab
James Tonsgard's most frequent co-authors
- Elizabeth K. Schorry, MD9 shared papers
- Roger Packer, MD7 shared papers
- Nicole J. Ullrich, MD6 shared papers
Recent publications by James Tonsgard
See who James Tonsgard researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who James Tonsgard works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
James H. Tonsgard has worked on 4 clinical trials
Dmand AI links James Tonsgard to 4 clinical trials, 2 of them phase 2 studies. 2 are still active or recruiting. Conditions studied include Neurofibroma, Plexiform, Neurofibromatosis 1 and Tuberous Sclerosis. University of Alabama at Birmingham sponsors the most, 2.
Clinical trials with James Tonsgard by phase
- NonePhase 1: no trials
- 2Phase 2: 2 trials
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Conditions in James Tonsgard's trials
- Neurofibroma, Plexiform
- Neurofibromatosis 1
- Tuberous Sclerosis
- Hamartoma
Investigators on the most trials with James Tonsgard
- Scott R. Plotkin, MD2 shared trials
- Tena La Dawn Rosser, MD2 shared trials
- Elizabeth K. Schorry, MD2 shared trials
Recent clinical trials with James Tonsgard
A Phase II Study of Binimetinib in Children and Adults With NF1 Associated Plexiform Neurofibromas (PNOC010) (opens in a new tab)
MEK Inhibitor Mirdametinib (PD-0325901) in Patients With Neurofibromatosis Type 1 Associated Plexiform Neurofibromas (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
James H. Tonsgard received $2,576 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to James Tonsgard from 4 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 91% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,350.
General payments to James Tonsgard by program year, 2017 to 2025
General payments to James Tonsgard by kind, 2017 to 2025
- Consulting fees$2,35091%
- Education$1185%
- Food and beverage$1084%
Companies that paid James Tonsgard the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
James H. Tonsgard graduated from Yale University School of Medicine
James Tonsgard graduated from Yale University School of Medicine in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for James H. Tonsgard'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 DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 James H. Tonsgard
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James H. Tonsgard's NPI number?
James H. Tonsgard's NPI number is 1396806717. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What does James H. Tonsgard specialize in?
James H. Tonsgard is a pediatrician in Chicago, Illinois. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does James H. Tonsgard practice?
James Tonsgard practices at 5841 S Maryland Ave, Chicago, IL 60637. James Tonsgard's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dmand AI also links James Tonsgard to 1 medical group.
What is James H. Tonsgard's office phone number?
The practice phone on file for James Tonsgard is (773) 702-1530.
What is James H. Tonsgard's medical license number?
James Tonsgard holds Illinois license 036055773.
Which hospitals is James H. Tonsgard affiliated with?
James Tonsgard is affiliated with University of Chicago Medical Center.
What medical group is James H. Tonsgard part of?
James Tonsgard is linked to UChicago Medicine Physicians. Dmand AI links James Tonsgard to 1 more medical group.
Does James H. Tonsgard accept Medicare?
Yes. CMS data shows James Tonsgard billed Medicare for 52 services in 2024, and James Tonsgard accepts Medicare assignment.
Does James H. Tonsgard offer telehealth?
Yes. The CMS Doctors and Clinicians file lists James Tonsgard as offering telehealth services.
How many Medicare patients does James H. Tonsgard see?
CMS counts 40 Medicare patients who saw James Tonsgard in 2024, with an average age of 45.
Show 7 more questionsShow fewer questions
What services does James H. Tonsgard bill to Medicare?
In 2024, James Tonsgard's most billed Medicare services were office visit, established patient (99214) and care management and other visits (99441).
Where did James H. Tonsgard go to medical school?
James Tonsgard graduated from Yale University School of Medicine in 1975.
What drugs does James H. Tonsgard prescribe most?
In 2024 Medicare Part D data, James Tonsgard's most prescribed drugs by claims were Lamotrigine, Topiramate and Divalproex Sodium.
Has James H. Tonsgard received payments from drug or device companies?
CMS Open Payments shows $2,576 in general payments to James Tonsgard from 4 companies from 2017 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has James H. Tonsgard been practicing?
James Tonsgard graduated from medical school in 1975, 51 years ago.
Does James H. Tonsgard do research?
Dmand AI links 14 publications to James Tonsgard, published from 2013 to 2025. James Tonsgard has worked on 4 clinical trials.
Who does James H. Tonsgard publish with?
James Tonsgard's most frequent co-authors are Elizabeth K. Schorry, MD (9 shared papers), Roger Packer, MD (7 shared papers) and Nicole J. Ullrich, MD (6 shared papers).
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