Jessica Leigh Tomasiewicz, NP
- Medicare patients, 2024
- 296
- Part D claims, 2024
- 6,017
- Hospital affiliations
- 5
- Industry payments
- $74
- Medical group
- 1
- Practice address
- 745 Fletcher Dr, Elgin, IL 60123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Elgin Gastroenterology Endoscopy Center LLC - HOPD
Acute Care Hospital outpatient department · Elgin, Illinois
Find Jessica Tomasiewicz'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.
Jessica Leigh Tomasiewicz is a nurse practitioner in Elgin, Illinois
Jessica Tomasiewicz practices at Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois.
Jessica Tomasiewicz's NPI, 1841516614, was assigned on April 19, 2010. Jessica Tomasiewicz holds Illinois license 209008119.
- NPI
- 1841516614NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486782158
- NPI enumeration date
- April 19, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jessica Leigh Tomasiewicz practices at Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois
Jessica Tomasiewicz's primary practice is Elgin Gastroenterology Endoscopy Center LLC - HOPD, at 745 Fletcher Dr, Elgin, IL 60123.
- Elgin Gastroenterology Endoscopy Center LLC - HOPD745 Fletcher Dr, Elgin, IL 60123
Source: Dmand AI Affiliation Data
Jessica Leigh Tomasiewicz is affiliated with 10 sites of care and 1 medical group
Jessica Tomasiewicz's primary practice is Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois. Jessica Tomasiewicz is also affiliated with Advocate Sherman Hospital. The medical group on file is DuPage Medical Group. Dmand AI also links Jessica Tomasiewicz to 4 more hospitals, 2 home health agencies, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Jessica Leigh Tomasiewicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jessica Tomasiewicz practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Elgin Gastroenterology Endoscopy Center LLC - HOPD | Available with a free account |
| +9 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Jessica Leigh Tomasiewicz is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Jessica Tomasiewicz's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Jessica Tomasiewicz is licensed in Illinois.
Specialties and state licenses
- Nurse practitioner, IllinoisPrimary
Nurse practitioners near Jessica Tomasiewicz
Counts of 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
Jessica Leigh Tomasiewicz treated 296 Medicare patients in 2024, average age 76
CMS counts 296 Medicare patients who saw Jessica Tomasiewicz in 2024. The largest group is 65 to 74, with 134 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 5% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Jessica Tomasiewicz's median patient age at 71, with 73% women.
Jessica Tomasiewicz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Jessica Tomasiewicz's Medicare patients by sex, 2024
- Women20770%
- Men8930%
Chronic conditions among Jessica Tomasiewicz's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis44%
- Diabetes22%
- Ischemic heart disease22%
- Mood disorders22%
- Anxiety21%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Jessica Tomasiewicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women73%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Jessica Leigh Tomasiewicz wrote 6,017 Medicare Part D claims in 2024
In 2024, Jessica Tomasiewicz wrote 6,017 Medicare Part D claims for 459 patients. 88% of them were for generic drugs.
Jessica Tomasiewicz's Part D claims by kind of drug, 2024
- Generic5,277 claims88%
- Brand-name714 claims12%
- Other26 claims0%
Drug classes CMS tracks in Jessica Tomasiewicz's Part D claims, 2024
- Opioids1%67 of 6,017 claims
- Antibiotics1%90 of 6,017 claims
- Antipsychotics, patients 65 and over0%11 of 6,017 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
Jessica Leigh Tomasiewicz offers telehealth to Medicare patients
Jessica Tomasiewicz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Jessica Tomasiewicz as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Jessica Leigh Tomasiewicz received $74 in industry payments in 2025
CMS Open Payments shows 3 general payments to Jessica Tomasiewicz from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $60.
Companies that paid Jessica Tomasiewicz 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 Jessica Leigh Tomasiewicz'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 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 Jessica Leigh Tomasiewicz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jessica Leigh Tomasiewicz's NPI number?
Jessica Leigh Tomasiewicz's NPI number is 1841516614. It was assigned on April 19, 2010, and it is active in the NPI Registry.
What does Jessica Leigh Tomasiewicz specialize in?
Jessica Leigh Tomasiewicz is a nurse practitioner in Elgin, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Jessica Leigh Tomasiewicz practice?
Jessica Tomasiewicz practices at 745 Fletcher Dr, Elgin, IL 60123. Jessica Tomasiewicz's primary practice is Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois. Dmand AI also links Jessica Tomasiewicz to 4 hospitals, 2 home health agencies, 1 group practice or clinic and 1 ambulatory surgery center.
What is Jessica Leigh Tomasiewicz's medical license number?
Jessica Tomasiewicz holds Illinois license 209008119.
Which hospitals is Jessica Leigh Tomasiewicz affiliated with?
Jessica Tomasiewicz is affiliated with Advocate Sherman Hospital. Dmand AI links Jessica Tomasiewicz to 4 more hospitals.
What medical group is Jessica Leigh Tomasiewicz part of?
Jessica Tomasiewicz is linked to DuPage Medical Group.
Does Jessica Leigh Tomasiewicz accept Medicare?
Yes. CMS lists Jessica Tomasiewicz as accepting Medicare assignment.
Does Jessica Leigh Tomasiewicz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Jessica Tomasiewicz as offering telehealth services.
How many Medicare patients does Jessica Leigh Tomasiewicz see?
CMS counts 296 Medicare patients who saw Jessica Tomasiewicz in 2024, with an average age of 76.
Has Jessica Leigh Tomasiewicz received payments from drug or device companies?
CMS Open Payments shows $74 in general payments to Jessica Tomasiewicz from 2 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Jessica Leigh Tomasiewicz been practicing?
Jessica Tomasiewicz graduated from medical school in 2009, 17 years ago.
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