Maria Louann Vonderhaar, PA-C
- Hospital affiliations
- 1
- Industry payments
- $19
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 225 E Chicago Ave, Box 140, Chicago, IL 60611
- Practice phone
- Call (312) 227-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Maria Vonderhaar'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.
Maria Louann Vonderhaar is a physician assistant in Chicago, Illinois
Maria Vonderhaar practices at Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois, part of Ann & Robert H. Lurie Children's Hospital of Chicago.
Maria Vonderhaar's NPI, 1396418281, was assigned on July 27, 2021.
- NPI
- 1396418281NPI Registry (opens in a new tab)
- NPI enumeration date
- July 27, 2021
- NPI status
- Active
- Practice phone
- (312) 227-4000
- 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 Affiliation Data
Maria Louann Vonderhaar practices at Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois
Maria Vonderhaar's primary practice is Ann & Robert H. Lurie Children's Hospital of Chicago, at 225 E Chicago Ave, Box 140, Chicago, IL 60611 in Cook County. The practice phone is (312) 227-4000.
- Ann & Robert H. Lurie Children's Hospital of Chicago225 E Chicago Ave, Box 140, Chicago, IL 60611 · Cook CountyPhone(312) 227-4000
Source: Dmand AI Affiliation Data
Maria Louann Vonderhaar is affiliated with 3 sites of care and 1 medical group
Maria Vonderhaar's primary practice is Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois, part of Ann & Robert H. Lurie Children's Hospital of Chicago. Dmand AI also links Maria Vonderhaar to 1 clinical lab, 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 Maria Louann Vonderhaar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Maria Vonderhaar practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ann & Robert H. Lurie Children's Hospital of Chicago | Available with a free account |
| +2 more sites 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 Ann & Robert H. Lurie Children's Hospital of Chicago and 6.2K+ hospitals, with verified contacts in the same login.
Maria Louann Vonderhaar is one of 4,299 physician assistants in Illinois
Physician assistant is Maria Vonderhaar's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Maria Vonderhaar
Counts of physician assistants 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
Maria Louann Vonderhaar's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Maria Vonderhaar's median patient age at 11, with 57% women.
Maria Vonderhaar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Maria Louann Vonderhaar received $19 in industry payments in 2025
CMS Open Payments shows 1 general payment to Maria Vonderhaar from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Sanofi Pasteur Inc. paid the most, $19.
Companies that paid Maria Vonderhaar the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Maria Louann Vonderhaar'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 Maria Louann Vonderhaar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Maria Louann Vonderhaar's NPI number?
Maria Louann Vonderhaar's NPI number is 1396418281. It was assigned on July 27, 2021, and it is active in the NPI Registry.
What does Maria Louann Vonderhaar specialize in?
Maria Louann Vonderhaar is a physician assistant in Chicago, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Maria Louann Vonderhaar practice?
Maria Vonderhaar practices at 225 E Chicago Ave, Box 140, Chicago, IL 60611. Maria Vonderhaar's primary practice is Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois, part of Ann & Robert H. Lurie Children's Hospital of Chicago. Dmand AI also links Maria Vonderhaar to 1 clinical lab, 1 group practice or clinic and 1 medical group.
What is Maria Louann Vonderhaar's office phone number?
The practice phone on file for Maria Vonderhaar is (312) 227-4000.
Which hospitals is Maria Louann Vonderhaar affiliated with?
Maria Vonderhaar practices at Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois.
Has Maria Louann Vonderhaar received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Maria Vonderhaar from 1 company from 2025 to 2025. The largest total came from Sanofi Pasteur Inc.
How long has Maria Louann Vonderhaar been practicing?
Maria Vonderhaar's NPI was assigned in 2021.
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