Julianne Tomac, DNP, FNP-C
Family Nurse Practitioner · O Fallon, IL
Julianne Tomac, DNP, FNP-C is a family nurse practitioner with a practice address in O Fallon, Illinois, and NPI 1245018944, issued on Sep 15, 2023. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Julianne Tomac
- Credential
- DNP, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 2023037611 MO
Self-reported in NPPES; status is on the state search - Practice location
- 321 Regency Park Ste 100, O Fallon, IL 62269
- Phone
- (618) 416-7970
- Enumerated
- Sep 15, 2023
- Record last updated
- Sep 13, 2024
- Fax
- (618) 416-7971
- Medicare enrollment
- Enrolled (PECOS I20231120001432); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 321 Regency Park Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Julianne Tomac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family nurse practitioner in 2024
178 Medicare Part D claims for 77 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 16 claims were for opioids.
Most prescribed
- Hydroxyurea22 claims
- Sulfamethoxazole-Trimethoprim16 claims
- Anastrozole11 claims
- Eliquis11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,325.82
67 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Cancer Care Specialists OF Central Illinois SCO Fallon, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julianne Tomac among 7,639 family nurse practitioner records in Illinois
Julianne Tomac, DNP, FNP-C is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 78% of them.
- NPI issued2023 · 78% of these records are older, 15% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2023 · median 2018 among the 4,778 with a school on file
- Record last updated2024 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 family nurse practitioner records list a practice address in O Fallon
They are 32 of the 1,077 NPPES records with a practice address in O Fallon, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in O Fallon → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Amy Buck, APNO Fallon, IL 622691053587402
- Susan Drabing, FNP-BCO Fallon, IL 622691326345141
- Dawn Drewes, APNO Fallon, IL 622691700177763
- Sarah Durnell, FNPO Fallon, IL 622691235568700
- Brandy Holthaus, NPO Fallon, IL 622691972922953
- Richard Knight, MSN FNP-BCO Fallon, IL 622691992959282
- Ricki Loar, APNO Fallon, IL 622691194723312
- Gaylin Manion, FNPShiloh, IL 622691023497591
Common questions
What is Julianne Tomac, DNP, FNP-C's NPI number?
Julianne Tomac, DNP, FNP-C's National Provider Identifier (NPI) is 1245018944, issued on Sep 15, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Julianne Tomac, DNP, FNP-C located?
The NPPES record lists a practice address at 321 Regency Park Ste 100, O Fallon, IL, 62269. Phone: (618) 416-7970. Providers update this record themselves, so call before visiting.
How can I verify Julianne Tomac, DNP, FNP-C's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Julianne Tomac, DNP, FNP-C prescribe under Medicare Part D?
In 2024, Julianne Tomac, DNP, FNP-C had 178 Medicare Part D claims for 77 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.