NPPES file of Aug 9, 2026

Melissa M. Theobald, FNP

Family Nurse Practitioner · Peoria, IL

Melissa M. Theobald, FNP is a family nurse practitioner with a practice address in Peoria, Illinois, and NPI 1114763737, issued on Jul 3, 2024. Check the license (Illinois 209030474, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114763737
Name
Melissa M. Theobald
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
209030474 IL
041362793 IL
Self-reported in NPPES; status is on the state search
Practice location
3626 N Sheridan RD, Peoria, IL 61604
Phone
(309) 308-5100
Enumerated
Jul 3, 2024
Record last updated
Oct 23, 2024
Medicare enrollment
Enrolled (PECOS I20241010000700); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3626 N Sheridan RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tiffany Ashby-Funches, APN, FNP-BCFamily Nurse Practitioner1386446110
  2. Andrea Machnacki, APRN, CNPFamily Nurse Practitioner1790453702
  3. Alyssa Williams BlakeAcute Care Nurse Practitioner1740063148

Verify Melissa M. Theobald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209030474
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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96% fewer Medicare Part D claims than the average family nurse practitioner in 2024

56 Medicare Part D claims for 45 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Melissa Theobald56
  2. Specialty average1,305

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 one group practice

  1. Osf Multi-Specialty GroupPeoria, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melissa M. Theobald among 7,639 family nurse practitioner records in Illinois

Melissa M. Theobald, FNP 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 2024, is newer than 85% of them.

  • NPI issued2024 · 85% of these records are older, 9% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2024 · 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).

215 family nurse practitioner records list a practice address in Peoria

They are 215 of the 4,621 NPPES records with a practice address in Peoria, and 7,639 family nurse practitioner records in Illinois.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Tiffany Ashby-Funches, APN, FNP-BCPeoria, IL 616041386446110
  2. Kerry Detweiler, APNPeoria, IL 616041386158822
  3. Rachel Dewey, NPPeoria, IL 616041730861113
  4. Mary Franks, APRN, NP-CPeoria, IL 616041871153189
  5. Emily Hamilton, APRNPeoria, IL 616041548833064
  6. Terri Hicok, NPPeoria, IL 616041316486061
  7. Robert Lucia, DNP, APRN-FPA, FNPPeoria, IL 616041558727636
  8. Andrea Machnacki, APRN, CNPPeoria, IL 616041790453702

Common questions

What is Melissa M. Theobald, FNP's NPI number?

Melissa M. Theobald, FNP's National Provider Identifier (NPI) is 1114763737, issued on Jul 3, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Melissa M. Theobald, FNP located?

The NPPES record lists a practice address at 3626 N Sheridan RD, Peoria, IL, 61604. Phone: (309) 308-5100. Providers update this record themselves, so call before visiting.

How can I verify Melissa M. Theobald, FNP's license?

NPPES lists Illinois license number 209030474, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Melissa M. Theobald, FNP prescribe under Medicare Part D?

In 2024, Melissa M. Theobald, FNP had 56 Medicare Part D claims for 45 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.