Zachary Greiner
NPI 1548965106 · Student in an Organized Health Care Education/Training Program · Cincinnati, OH
Enrolled with Medicare as Order and Referring Only - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Greiner is a Student in an Organized Health Care Education/Training Program provider in Cincinnati, OH (NPI 1548965106).
Provider details
- NPI number
- 1548965106
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
83% 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 28 |
| Atorvastatin Calcium | 19 |
| Amlodipine Besylate | 17 |
| Losartan Potassium | 16 |
| Tizanidine Hcl | 16 |
| Metoprolol Succinate | 15 |
| Fluticasone Propionate | 14 |
| Rosuvastatin Calcium | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (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
- 2023-04-03
- Last updated
- 2023-04-03
- Certified
- 2023-04-03
Frequently asked questions
- What is Zachary Greiner's NPI number?
- Zachary Greiner's National Provider Identifier (NPI) is 1548965106, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Greiner's specialty?
- Zachary Greiner is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Zachary Greiner located?
- Zachary Greiner's practice location on file with NPPES is 2139 Auburn Ave Ste 2170, Cincinnati, OH 45219-2906.
- What is Zachary Greiner's phone number?
- The practice phone number listed in the NPPES registry for Zachary Greiner is (513) 585-4079.
- Does Zachary Greiner accept Medicare?
- Zachary Greiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Greiner's NPI active?
- Yes — Zachary Greiner's NPI (1548965106) is active in the NPPES registry as of the last update on 2023-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.