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Professional Citations & Third-Party Profiles
Independent sources for checking Dr. Marc Greenberg's professional identity, training, publications, and Fort Wayne practice information.
Use the independent sources below to verify professional identity, training, publications, and practice information. A third-party profile controls its own content and may not reflect the same update date as this website.
Institutional and Government Sources
Brown University Department of Orthopaedics
Brown University’s profile identifies Marc Greenberg, MD as its 2025–2026 spine fellow.
National Provider Identifier record
The federal NPI Registry record for NPI 1750919205 is the government source for the provider identifier and enumerated practice information.
Google Business Profile
Location, phone, directions, and business-profile information are maintained on Google’s platform.
Public Professional Profiles
These profile services are useful cross-checks, not substitutes for the issuing institution, licensing authority, or board.
Publications and Source-Linked Summaries
The Research & Publications page separates publications involving Dr. Greenberg from Greenberg Spine practice outcomes. Individual summaries link to the named journal record or primary source and state study limitations.
Training, Stated Precisely
- Medical degree: Mayo Clinic Alix School of Medicine
- Orthopedic surgery residency: The Johns Hopkins Hospital
- Spine surgery fellowship: Brown University
The Brown University profile above independently verifies the fellowship. Medical-school, residency, licensure, and board status should be checked through the relevant issuing institution or official registry when a formal credentialing decision depends on them.
Practice Relationship
Dr. Greenberg provides orthopedic spine consultations through SpineONE, a division of Ortho NorthEast, in Fort Wayne, in partnership with Parkview Health. A procedure facility, when applicable, is confirmed through the clinical and scheduling process.
Third-party names and links are provided for verification only. Their inclusion does not imply endorsement except where a partnership is stated explicitly.
This is general educational information, not medical advice. A clinical evaluation is the only way to know what’s right for you.