Derek Pechacek, FNP-C
Family Nurse Practitioner · O Fallon, IL
Derek Pechacek, FNP-C is a family nurse practitioner with a practice address in O Fallon, Illinois, and NPI 1114356607, issued on Nov 5, 2013. Check the license (Illinois 209-010889, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derek Pechacek
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209-010889 IL
Self-reported in NPPES; status is on the state search - Practice location
- 320 E Highway 50, O Fallon, IL 62269
- Phone
- (618) 624-3368
- Enumerated
- Nov 5, 2013
- Record last updated
- May 29, 2026
- Fax
- (618) 624-3387
- Medicare enrollment
- Enrolled (PECOS I20131230000978); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 320 E Highway 50
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Armstrong, PA-CPhysician Assistant1962700757
- Sarah Brashear, FNP-CFamily Nurse Practitioner1073499901
- Susan Drabing, FNP-BCFamily Nurse Practitioner1326345141
- Dawn Drewes, APNFamily Nurse Practitioner1700177763
- Vicky Hwang, MDEmergency Medicine Physician1205332194
- Richard Knight, MSN FNP-BCFamily Nurse Practitioner1992959282
Verify Derek Pechacek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209-010889Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family nurse practitioner in 2024
170 Medicare Part D claims for 114 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Cephalexin16 claims
- Prednisone13 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.
Bills Medicare through 3 group practices
- Midwest Emergency Anderson Health IncMaryville, IL
- Midwest Emergency Good Samaritan, IncMount Vernon, IL
- Washington County Hospital DistrictNashville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek Pechacek among 7,639 family nurse practitioner records in Illinois
Derek Pechacek, 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 2013, is newer than 17% of them.
- NPI issued2013 · 17% of these records are older, 80% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2008 · median 2018 among the 4,778 with a school on file
- Record last updated2026 · 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 Derek Pechacek, FNP-C's NPI number?
Derek Pechacek, FNP-C's National Provider Identifier (NPI) is 1114356607, issued on Nov 5, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Derek Pechacek, FNP-C located?
The NPPES record lists a practice address at 320 E Highway 50, O Fallon, IL, 62269. Phone: (618) 624-3368. Providers update this record themselves, so call before visiting.
How can I verify Derek Pechacek, FNP-C's license?
NPPES lists Illinois license number 209-010889, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Derek Pechacek, FNP-C prescribe under Medicare Part D?
In 2024, Derek Pechacek, FNP-C had 170 Medicare Part D claims for 114 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.