David Greiner, MD
NPI 1245808146 · Student in an Organized Health Care Education/Training Program · Omaha, NE
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Greiner, MD is a Student in an Organized Health Care Education/Training Program provider in Omaha, NE (NPI 1245808146).
Provider details
- NPI number
- 1245808146
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- 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 tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 17 | 17 |
| Tramadol Hcl | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-06-16
- Last updated
- 2021-06-16
- Certified
- 2021-06-16
Frequently asked questions
- What is David Greiner's NPI number?
- David Greiner's National Provider Identifier (NPI) is 1245808146, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Greiner's specialty?
- David 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 David Greiner located?
- David Greiner's practice location on file with NPPES is 983255 Nebraska Medical Ctr, Omaha, NE 68198-3255.
- What is David Greiner's phone number?
- The practice phone number listed in the NPPES registry for David Greiner is (402) 559-6160.
- Does David Greiner accept Medicare?
- David Greiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Greiner's NPI active?
- Yes — David Greiner's NPI (1245808146) is active in the NPPES registry as of the last update on 2021-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.