NPPES file of Aug 9, 2026

Hollie Trettenero, FNP-C

Nurse Practitioner · Gillespie, IL

Hollie Trettenero, FNP-C is a nurse practitioner with a practice address in Gillespie, Illinois, and NPI 1811389935, issued on Feb 26, 2015. Check the license (Illinois 209012517, 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
1811389935
Name
Hollie Trettenero
Credential
FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
209012517 IL
Self-reported in NPPES; status is on the state search
Practice location
715 Broadway St, Gillespie, IL 62033
Phone
(217) 839-4491
Enumerated
Feb 26, 2015
Record last updated
Feb 26, 2015 (not updated in 11 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 715 Broadway St

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

  1. Jaclyn Hake, PA-CMedical Physician Assistant1497994727
  2. Jason Manthei, PAPhysician Assistant1477586121
  3. Chris Poirot, M.D.Family Medicine Physician1992709984
  4. Brian Quarton, M.D.Family Medicine Physician1417951401
  5. Bruce Weber, M.D.Family Medicine Physician1609870591
  6. Marsha Wright, PA-CPhysician Assistant1497759393

Verify Hollie Trettenero 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 209012517
    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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2.9 times the Medicare Part D claims of the average nurse practitioner in 2024

3,175 Medicare Part D claims for 273 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 139 claims were for opioids.

  1. Hollie Trettenero3,175
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium123 claims
  2. Metoprolol Succinate114 claims
  3. Levothyroxine Sodium110 claims
  4. Hydrocodone-Acetaminophen107 claims
  5. Albuterol Sulfate Hfa89 claims
  6. Montelukast Sodium79 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: $732.42

37 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hollie Trettenero$732.42
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Hollie Trettenero among 4,892 nurse practitioner records in Illinois

Hollie Trettenero, FNP-C is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 31% of them.

  • NPI issued2015 · 31% of these records are older, 64% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2015 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 nurse practitioner records list a practice address in Gillespie

They are 3 of the 56 NPPES records with a practice address in Gillespie, and 4,892 nurse practitioner records in Illinois.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Jamie Ott, FNP-CGillespie, IL 620331285673780
  2. Samantha Thomas, FNP-BCGillespie, IL 620331447789169
  3. Samantha Collins, DNP,FNP-CGlen Carbon, IL 620341215481924
  4. Candyce FreyGlen Carbon, IL 620341881494086
  5. Kirby Klostermann, FNPGlen Carbon, IL 620341285829572
  6. Stefanie Vesper, APRNGlen Carbon, IL 620341972243483
  7. Bethany Huelskoetter, APNGodfrey, IL 620351548775109
  8. Donna Koenig, FNPGodfrey, IL 620351871564898

Common questions

What is Hollie Trettenero, FNP-C's NPI number?

Hollie Trettenero, FNP-C's National Provider Identifier (NPI) is 1811389935, issued on Feb 26, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Hollie Trettenero, FNP-C located?

The NPPES record lists a practice address at 715 Broadway St, Gillespie, IL, 62033. Phone: (217) 839-4491. Providers update this record themselves, so call before visiting.

How can I verify Hollie Trettenero, FNP-C's license?

NPPES lists Illinois license number 209012517, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Hollie Trettenero, FNP-C prescribe under Medicare Part D?

In 2024, Hollie Trettenero, FNP-C had 3,175 Medicare Part D claims for 273 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.