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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Joseph Eisinger, MD, MSSW

Critical Care Medicine (Internal Medicine) Physician in Hilliard, OH · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689758500

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory Joseph Eisinger
Credential MD, MSSW
Sex Male
Practice address 3691 Ridge Mill Dr Fl 1, Hilliard, OH, 43026
Phone (614) 293-4925
Fax (614) 293-5503
Enumeration date Oct 25, 2006
Last updated in NPPES Dec 7, 2023

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 35.130016 (OH) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 35.130016 (OH) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Gregory Eisinger?
Gregory Eisinger is registered in NPPES with the primary taxonomy of Critical Care Medicine (Internal Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-07.