Margarita Ruiz, MS, PA-C
- Part D claims, 2024
- 449
- Hospital affiliations
- 1
- Industry payments
- $359
- Medical group
- 1
- State license
- 1
- Practice address
- 25 North Winfield Road, Winfield, IL 60190
- Practice phone
- Call (630) 682-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Margarita Ruiz's professional email, personal email and mobile number
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Margarita Ruiz is a physician assistant in Winfield, Illinois
Margarita Ruiz practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.
Margarita Ruiz's NPI, 1194998237, was assigned on April 9, 2008. Margarita Ruiz holds Illinois license 085003106.
- NPI
- 1194998237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143605501
- NPI enumeration date
- April 9, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 682-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Margarita Ruiz practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois
Margarita Ruiz's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.
- Northwestern Medicine Central DuPage Hospital25 North Winfield Road, Winfield, IL 60190 · Du Page CountyPhone(630) 682-1600
Source: Dmand AI Affiliation Data
Margarita Ruiz is affiliated with 4 sites of care and 1 medical group
Margarita Ruiz's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. The medical group on file is Innovative Care. Dmand AI also links Margarita Ruiz to 1 more breast imaging center, 1 clinical lab and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Margarita Ruiz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Margarita Ruiz practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Central DuPage Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Margarita Ruiz is one of 4,299 physician assistants in Illinois
Physician assistant is Margarita Ruiz's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Margarita Ruiz is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near Margarita Ruiz
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
Margarita Ruiz's patients have a median age of 36
Across all payers, Dmand AI patient panel data puts Margarita Ruiz's median patient age at 36, with 53% women.
Margarita Ruiz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Margarita Ruiz wrote 449 Medicare Part D claims in 2024
In 2024, Margarita Ruiz wrote 449 Medicare Part D claims for 37 patients. 90% of them were for generic drugs.
Margarita Ruiz's Part D claims by kind of drug, 2024
- Generic405 claims90%
- Brand-name and other44 claims10%
Drug classes CMS tracks in Margarita Ruiz's Part D claims, 2024
- Opioids3%13 of 449 claims
- Antibiotics4%18 of 449 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Margarita Ruiz takes part in Medicare
Margarita Ruiz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Margarita Ruiz received $359 in industry payments in 2025
CMS Open Payments shows 15 general payments to Margarita Ruiz from 10 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $67.
Companies that paid Margarita Ruiz 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 Margarita Ruiz'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 |
| Part D prescribing | 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) |
| 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 Margarita Ruiz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Margarita Ruiz's NPI number?
Margarita Ruiz's NPI number is 1194998237. It was assigned on April 9, 2008, and it is active in the NPI Registry.
What does Margarita Ruiz specialize in?
Margarita Ruiz is a physician assistant in Winfield, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Margarita Ruiz practice?
Margarita Ruiz practices at 25 North Winfield Road, Winfield, IL 60190. Margarita Ruiz's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Margarita Ruiz to 1 breast imaging center, 1 clinical lab and 1 group practice or clinic.
What is Margarita Ruiz's office phone number?
The practice phone on file for Margarita Ruiz is (630) 682-1600.
What is Margarita Ruiz's medical license number?
Margarita Ruiz holds Illinois license 085003106.
Which hospitals is Margarita Ruiz affiliated with?
Margarita Ruiz practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois.
What medical group is Margarita Ruiz part of?
Margarita Ruiz is linked to Innovative Care.
Does Margarita Ruiz accept Medicare?
Yes. CMS lists Margarita Ruiz as accepting Medicare assignment.
Has Margarita Ruiz received payments from drug or device companies?
CMS Open Payments shows $359 in general payments to Margarita Ruiz from 10 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.
How long has Margarita Ruiz been practicing?
Margarita Ruiz graduated from medical school in 2007, 19 years ago.
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