DR. GREGORY JOSEPH EISINGER MD, MSSW
NPI 1689758500
Internal Medicine - Critical Care Medicine in Hilliard, OH
About Dr. Gregory Joseph Eisinger Md, Mssw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY JOSEPH EISINGER MD, MSSW (NPI 1689758500) is an individual critical care medicine provider in Hilliard, Ohio, licensed in Ohio (35.130016) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Ohio State University State Health System, and maintains a secondary practice location in Columbus.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Gregory Joseph Eisinger Md, Mssw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Gregory Eisinger reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbus, OH 43210
- Reassigned Medicare billing, Ohio enrollment
- 169 clinicians in this Medicare group
Columbus, OH 43210
- Reassigned Medicare billing, Ohio enrollment
- 1,230 clinicians in this Medicare group
Columbus, OH 43210
- Reassigned Medicare billing, Ohio enrollment
- 551 clinicians in this Medicare group
Upper Sandusky, OH 43351
- Reassigned Medicare billing, Ohio enrollment
- Also billed through NPI 1477554475 (Ohio)
- 126 clinicians in this Medicare group
Gallipolis, OH 45631
- Reassigned Medicare billing, Ohio enrollment
- 321 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ohio State University State Health System
Acute Care Hospitals · Columbus, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43026 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gregory Eisinger's NPI number?
The NPI number for Gregory Eisinger is 1689758500. It was assigned to this individual provider in the NPPES registry on October 25, 2006.
Where is Gregory Eisinger located?
Gregory Eisinger practices at 3691 Ridge Mill Dr Fl 1, Hilliard, OH 43026. The listed phone number is (614) 293-4925.
What is Gregory Eisinger's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Gregory Eisinger enrolled in Medicare?
Yes. Gregory Eisinger is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Eisinger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Eisinger reassigns Medicare benefits to 5 organizations: Osu Emergency Medicine LLC (Columbus, OH), Osu Internal Medicine, LLC (Columbus, OH), Osu Observation Medicine, LLC (Columbus, OH), Wyandot Memorial Hospital (Upper Sandusky, OH) and Holzer Clinic, LLC (Gallipolis, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Eisinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Eisinger accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Antidote Health Plan of Ohio, Inc. and 4 other insurers list Gregory Eisinger as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Gregory Eisinger affiliated with any hospitals?
According to CMS data, Gregory Eisinger is affiliated with Ohio State University State Health System.
When was this NPI record last updated?
The NPPES record for Gregory Eisinger was last updated on December 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.