Dr. Gerald T. Riess, MD
- Medicare services, 2024
- 802
- Medicare patients, 2024
- 372
- Part D claims, 2024
- 6,361
- Hospital affiliations
- 3
- Industry payments
- $2,337
- Practice address
- 1001 Bellefontaine Avenue, Lima, OH 45804
- Practice phone
- Call (419) 998-4731
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Riess' professional email, personal email and mobile number
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Dr. Gerald T. Riess is a neurologist in Lima, Ohio
Dr. Riess practices at Lima Memorial Health System in Lima, Ohio, part of Lima Memorial Health System.
Dr. Riess' NPI, 1861589558, was assigned on October 6, 2006. Dr. Riess graduated from Wayne State University School of Medicine in 1987. Dr. Riess holds Ohio license 35123873.
- NPI
- 1861589558NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991795023
- NPI enumeration date
- October 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (419) 998-4731
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gerald T. Riess practices at Lima Memorial Health System in Lima, Ohio
Dr. Riess' primary practice is Lima Memorial Health System, at 1001 Bellefontaine Avenue, Lima, OH 45804 in Allen County. The practice phone is (419) 998-4731.
- Lima Memorial Health System1001 Bellefontaine Avenue, Lima, OH 45804 · Allen CountyPhone(419) 998-4731
Source: Dmand AI Affiliation Data
Dr. Gerald T. Riess is affiliated with 4 sites of care and 1 medical group
Dr. Riess' primary practice is Lima Memorial Health System in Lima, Ohio, part of Lima Memorial Health System. Dr. Riess is also affiliated with Mercy Health - St. Rita's Medical Center. The medical group on file is Lima Memorial Health System. Dmand AI also links Dr. Riess to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gerald T. Riess' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riess practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lima Memorial Health System | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lima Memorial Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gerald T. Riess is one of 738 neurologists in Ohio
Neurology is Dr. Riess' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Riess' licenses on file in 2 states: Ohio and Michigan.
Specialties and state licenses
- Neurology, OhioPrimary
- Michigan license
Neurologists near Dr. Riess
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gerald T. Riess billed Medicare for 802 services in 2024
CMS data shows 802 Medicare services from Dr. Riess across 7 procedure codes in 2024, for 372 Medicare patients. Medicare paid $44,751 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Riess' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7182024: 60316%
- Tests and treatments
- 2023: 1712024: 1784%
- Imaging
- 2023: 02024: 21
Dr. Riess compared with the Ohio median for neurologists, 2024
- Dr. Riess
- Ohio median
- Medicare services
- 802vs 3152.5 times
- Medicare patients
- 372vs 19690% above
- Part D claims
- 6,112vs 40914.9 times
Medians across 700 neurologists in Ohio with Dmand AI profiles that report each measure.
Dr. Riess' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Riess?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Riess and other neurologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gerald T. Riess treated 372 Medicare patients in 2024, average age 71
CMS counts 372 Medicare patients who saw Dr. Riess in 2024. The largest group is 75 to 84, with 129 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.58, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Riess' median patient age at 60, with 61% women.
Dr. Riess' Medicare patients by age, 2024
Dr. Riess' Medicare patients by sex, 2024
- Women19552%
- Men17748%
Chronic conditions among Dr. Riess' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Ischemic heart disease42%
- Mood disorders37%
- Anxiety36%
- Diabetes34%
- Depression33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Riess' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gerald T. Riess wrote 6,361 Medicare Part D claims in 2024
In 2024, Dr. Riess wrote 6,361 Medicare Part D claims for 583 patients. 93% of them were for generic drugs. CMS names the drug for 6,112 of them, across 76 drugs with 11 or more claims each, at $829,901 in total drug cost. In 2023, CMS named 5,776 claims across 76 drugs.
Dr. Riess' Part D claims by kind of drug, 2024
- Generic5,931 claims93%
- Brand-name400 claims6%
- Other30 claims0%
Dr. Riess' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Riess' Part D claims, 2024
- Opioids4%234 of 6,361 claims
- Antipsychotics, patients 65 and over0%29 of 6,361 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,7762024: 6,1126%
Drugs named by CMS: 76 in 2024, 76 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gerald T. Riess takes part in Medicare
Dr. Riess accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gerald T. Riess received $2,337 in industry payments from 2017 to 2025
CMS Open Payments shows 210 general payments to Dr. Riess from 17 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $802.
General payments to Dr. Riess by program year, 2017 to 2025
General payments to Dr. Riess by kind, 2017 to 2025
- Food and beverage$2,27998%
- Education$582%
Companies that paid Dr. Riess the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gerald T. Riess graduated from Wayne State University School of Medicine
Dr. Riess graduated from Wayne State University School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gerald T. Riess's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gerald T. Riess
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gerald T. Riess' NPI number?
Dr. Gerald T. Riess' NPI number is 1861589558. It was assigned on October 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerald T. Riess?
Dr. Gerald T. Riess is a neurologist in Lima, Ohio. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Gerald T. Riess practice?
Dr. Riess practices at 1001 Bellefontaine Avenue, Lima, OH 45804. Dr. Riess' primary practice is Lima Memorial Health System in Lima, Ohio, part of Lima Memorial Health System. Dmand AI also links Dr. Riess to 1 hospital and 1 group practice or clinic.
What is Dr. Gerald T. Riess' office phone number?
The practice phone on file for Dr. Riess is (419) 998-4731.
What is Dr. Gerald T. Riess' medical license number?
Dr. Riess holds Ohio license 35123873, one of the licenses on file in 2 states.
Which states has Dr. Gerald T. Riess been licensed in?
Dmand AI has state licenses on file for Dr. Riess in Ohio and Michigan.
Which hospitals is Dr. Gerald T. Riess affiliated with?
Dr. Riess practices at Lima Memorial Health System in Lima, Ohio. Dr. Riess is also affiliated with Mercy Health - St. Rita's Medical Center. Dmand AI links Dr. Riess to 1 more hospital.
What medical group is Dr. Gerald T. Riess part of?
Dr. Riess is linked to Lima Memorial Health System.
Does Dr. Gerald T. Riess accept Medicare?
Yes. CMS data shows Dr. Riess billed Medicare for 802 services in 2024, and Dr. Riess accepts Medicare assignment.
How many Medicare patients does Dr. Gerald T. Riess see?
CMS counts 372 Medicare patients who saw Dr. Riess in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Gerald T. Riess bill to Medicare?
In 2024, Dr. Riess' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and nerve and brain test (95816).
Where did Dr. Gerald T. Riess go to medical school?
Dr. Riess graduated from Wayne State University School of Medicine in 1987.
What drugs does Dr. Gerald T. Riess prescribe most?
In 2024 Medicare Part D data, Dr. Riess' most prescribed drugs by claims were Levetiracetam, Donepezil HCl and Gabapentin.
Has Dr. Gerald T. Riess received payments from drug or device companies?
CMS Open Payments shows $2,337 in general payments to Dr. Riess from 17 companies from 2017 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Gerald T. Riess been practicing?
Dr. Riess graduated from medical school in 1987, 39 years ago.
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