Gretchen Trenary, AGACNP-BC
NPI 1811552748 · Nurse Practitioner · Savannah, GA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Trenary, AGACNP-BC is a Nurse Practitioner provider in Savannah, GA (NPI 1811552748).
Provider details
- NPI number
- 1811552748
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGACNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- APRN-NP246134 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
599 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $71 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 128 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 119 | $9 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 93 | $12 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 42 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 79 | 29 |
| Apixabanbrand: Eliquis | 41 | 15 |
| Letrozole | 35 | 13 |
| Hydroxyurea | 21 | — |
| Prochlorperazine Maleate | 18 | 11 |
| Tamoxifen Citrate | 17 | — |
| Olanzapine | 12 | — |
| Gabapentin | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-05-06
- Last updated
- 2025-10-15
- Certified
- 2025-10-15
Frequently asked questions
- What is Gretchen Trenary's NPI number?
- Gretchen Trenary's National Provider Identifier (NPI) is 1811552748, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Trenary's specialty?
- Gretchen Trenary is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gretchen Trenary located?
- Gretchen Trenary's practice location on file with NPPES is 4700 Waters Ave Ste 201, Savannah, GA 31404-6220.
- What is Gretchen Trenary's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Trenary is (912) 692-2000.
- Does Gretchen Trenary accept Medicare?
- Gretchen Trenary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Trenary's NPI active?
- Yes — Gretchen Trenary's NPI (1811552748) is active in the NPPES registry as of the last update on 2025-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.