Hollie Trettenero, FNP-C
NPI 1811389935 · Nurse Practitioner · Gillespie, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hollie Trettenero, FNP-C is a Nurse Practitioner provider in Gillespie, IL (NPI 1811389935).
Provider details
- NPI number
- 1811389935
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 209012517 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 123 | 24 |
| Metoprolol Succinate | 114 | 18 |
| Levothyroxine Sodium | 110 | 21 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 107 | 37 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 89 | 30 |
| Montelukast Sodium | 79 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$732 across 37 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-02-26
- Last updated
- 2015-02-26
Frequently asked questions
- What is Hollie Trettenero's NPI number?
- Hollie Trettenero's National Provider Identifier (NPI) is 1811389935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hollie Trettenero's specialty?
- Hollie Trettenero is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hollie Trettenero located?
- Hollie Trettenero's practice location on file with NPPES is 715 Broadway St, Gillespie, IL 62033-1166.
- What is Hollie Trettenero's phone number?
- The practice phone number listed in the NPPES registry for Hollie Trettenero is (217) 839-4491.
- Does Hollie Trettenero accept Medicare?
- Hollie Trettenero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hollie Trettenero's NPI active?
- Yes — Hollie Trettenero's NPI (1811389935) is active in the NPPES registry as of the last update on 2015-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.