Sean Greiner, MD
NPI 1063114015 · Student in an Organized Health Care Education/Training Program · Baltimore, MD
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Greiner, MD is a Student in an Organized Health Care Education/Training Program provider in Baltimore, MD (NPI 1063114015).
Provider details
- NPI number
- 1063114015
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 7230
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
3 yrs in NPPES registry
- Profile completeness38% of score
100% 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-21
- Last updated
- 2023-03-21
- Certified
- 2023-03-21
Frequently asked questions
- What is Sean Greiner's NPI number?
- Sean Greiner's National Provider Identifier (NPI) is 1063114015, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Greiner's specialty?
- Sean 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 Sean Greiner located?
- Sean Greiner's practice location on file with NPPES is 1800 Orleans St, Baltimore, MD 21287-0010.
- What is Sean Greiner's phone number?
- The practice phone number listed in the NPPES registry for Sean Greiner is (410) 955-5000.
- Does Sean Greiner accept Medicare?
- Sean Greiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Greiner's NPI active?
- Yes — Sean Greiner's NPI (1063114015) is active in the NPPES registry as of the last update on 2023-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.