Stephanie Onyeforo
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 469
- Industry payments
- $955
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 455 E Main St, East Dundee, IL 60118
- Practice phone
- Call (815) 444-9999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mathers Clinic
East Dundee, Illinois
Find Stephanie Onyeforo'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.
Stephanie Onyeforo is a psychiatric/mental health nurse practitioner in East Dundee, Illinois
Stephanie Onyeforo practices at Mathers Clinic in East Dundee, Illinois.
Stephanie Onyeforo's NPI, 1942816665, was assigned on September 17, 2020. Stephanie Onyeforo holds Illinois license 209018176.
- NPI
- 1942816665NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719388503
- NPI enumeration date
- September 17, 2020
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (815) 444-9999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Stephanie Onyeforo practices at Mathers Clinic in East Dundee, Illinois
Stephanie Onyeforo's primary practice is Mathers Clinic, at 455 E Main St, East Dundee, IL 60118 in Kane County. The practice phone is (815) 444-9999.
- Mathers Clinic455 E Main St, East Dundee, IL 60118 · Kane CountyPhone(815) 444-9999
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Stephanie Onyeforo is affiliated with 2 sites of care
Stephanie Onyeforo's primary practice is Mathers Clinic in East Dundee, Illinois. Dmand AI also links Stephanie Onyeforo to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Stephanie Onyeforo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Stephanie Onyeforo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mathers Clinic | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Stephanie Onyeforo is one of 1,228 psychiatric/mental health nurse practitioners in Illinois
Psychiatric/mental health is Stephanie Onyeforo's primary specialty in the NPI Registry, under taxonomy code 363LP0808X. Stephanie Onyeforo is licensed in Illinois.
Specialties and state licenses
- Psychiatric/mental health nurse practitioner, IllinoisPrimary
Psychiatric/mental health nurse practitioners near Stephanie Onyeforo
Counts of psychiatric/mental health nurse practitioners 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
Stephanie Onyeforo treated 16 Medicare patients in 2024, average age 54
CMS counts 16 Medicare patients who saw Stephanie Onyeforo in 2024. The largest group is 85 and over, with 0 patients. 75% of them have anxiety, and 75% have mood disorders. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Stephanie Onyeforo's median patient age at 31, with 68% women.
Stephanie Onyeforo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Stephanie Onyeforo's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- High cholesterol69%
Share of Medicare patients with each condition. A patient can have several.
Stephanie Onyeforo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Stephanie Onyeforo wrote 469 Medicare Part D claims in 2024
In 2024, Stephanie Onyeforo wrote 469 Medicare Part D claims for 40 patients. 89% of them were for generic drugs.
Stephanie Onyeforo's Part D claims by kind of drug, 2024
- Generic417 claims89%
- Brand-name52 claims11%
Drug classes CMS tracks in Stephanie Onyeforo's Part D claims, 2024
- Antipsychotics, patients 65 and over9%43 of 469 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
Stephanie Onyeforo offers telehealth to Medicare patients
CMS lists Stephanie Onyeforo as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Stephanie Onyeforo received $955 in industry payments in 2025
CMS Open Payments shows 48 general payments to Stephanie Onyeforo from 11 drug and device companies in 2025. Food and beverage make up the largest share, 88% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $224.
General payments to Stephanie Onyeforo by kind, 2025 to 2025
- Food and beverage$84388%
- Education$11112%
Companies that paid Stephanie Onyeforo 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 Stephanie Onyeforo'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 Data |
| 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 (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 Stephanie Onyeforo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Stephanie Onyeforo's NPI number?
Stephanie Onyeforo's NPI number is 1942816665. It was assigned on September 17, 2020, and it is active in the NPI Registry.
What does Stephanie Onyeforo specialize in?
Stephanie Onyeforo is a psychiatric/mental health nurse practitioner in East Dundee, Illinois. The primary specialty in the NPI Registry is Psychiatric/Mental Health Nurse Practitioner (taxonomy code 363LP0808X).
Where does Stephanie Onyeforo practice?
Stephanie Onyeforo practices at 455 E Main St, East Dundee, IL 60118. Stephanie Onyeforo's primary practice is Mathers Clinic in East Dundee, Illinois. Dmand AI also links Stephanie Onyeforo to 1 physician office.
What is Stephanie Onyeforo's office phone number?
The practice phone on file for Stephanie Onyeforo is (815) 444-9999.
What is Stephanie Onyeforo's medical license number?
Stephanie Onyeforo holds Illinois license 209018176.
Does Stephanie Onyeforo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Stephanie Onyeforo as offering telehealth services.
How many Medicare patients does Stephanie Onyeforo see?
CMS counts 16 Medicare patients who saw Stephanie Onyeforo in 2024, with an average age of 54.
Has Stephanie Onyeforo received payments from drug or device companies?
CMS Open Payments shows $955 in general payments to Stephanie Onyeforo from 11 companies from 2025 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Stephanie Onyeforo been practicing?
Stephanie Onyeforo graduated from medical school in 2019, 7 years ago.
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