GERALD T RIESS MD
NPI 1861589558
Psychiatry & Neurology - Neurology in Lima, OH
About Gerald T Riess Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GERALD T RIESS MD (NPI 1861589558) is an individual neurology provider in Lima, Ohio, licensed in Ohio (35123873) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Lima Memorial Health System, and is a graduate of Wayne State University School Of Medicine (1987).
NPPES Registry Identity
Specialties & Licenses
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
Gerald T Riess Md 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 Reassignment
Medicare enrollment records show Gerald Riess reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lima, OH 45804
- Reassigned Medicare billing, Ohio enrollment
- 228 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lima Memorial Health System
Acute Care Hospitals · Lima, OHMercy Health-St Rita's Medical Center
Acute Care Hospitals · Lima, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 45804 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LIMA, OH 45804
LIMA, OH 45804
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 Gerald Riess's NPI number?
The NPI number for Gerald Riess is 1861589558. It was assigned to this individual provider in the NPPES registry on October 6, 2006.
Where is Gerald Riess located?
Gerald Riess practices at 1005 Bellefontaine Ave Ste 350, Lima, OH 45804. The listed phone number is (419) 998-8200.
What is Gerald Riess's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Gerald Riess enrolled in Medicare?
Yes. Gerald Riess 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 organization bills Medicare for Gerald Riess's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gerald Riess reassigns Medicare benefits to Lima Memorial Professional Corporation (Lima, OH). The 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 Gerald Riess's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gerald Riess accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 3 other insurers list Gerald Riess 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 Gerald Riess affiliated with any hospitals?
According to CMS data, Gerald Riess is affiliated with Lima Memorial Health System and Mercy Health-St Rita's Medical Center.
When was this NPI record last updated?
The NPPES record for Gerald Riess was last updated on January 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Gerald T Riess, MD · NPI 1861589558
Neurology physician in Lima, Ohio. Individual provider, active in the CMS NPPES registry since October 6, 2006.
## Identity
- **NPI:** 1861589558 (Entity type: Individual)
- **Enumerated:** October 6, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 35123873 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 1005 BELLEFONTAINE AVE STE 350, Lima, OH 45804-2885
- **Phone:** (419) 998-8200 · **Fax:** (419) 998-8203
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Lima Memorial Professional Corporation (NPI 1063853414, Lima, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 1987
## Record status
- **NPPES last updated:** January 4, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1861589558) · Data from the CMS NPPES public registry.