Randall John Riemer, OD
- Medicare patients, 2024
- 98
- Part D claims, 2024
- 325
- Industry payments
- $46
- Affiliated sites
- 2
- State license
- 1
- Practice address
- 3400 E. Jolly Road, Lansing, MI 48910
- Practice phone
- Call (517) 272-1063
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Genesis Surgery Center - Lansing
Surgery Center - Medicare-Certified · Lansing, Michigan
Find Randall Riemer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Randall John Riemer is an optometrist in Lansing, Michigan
Randall Riemer practices at Genesis Surgery Center - Lansing in Lansing, Michigan.
Randall Riemer's NPI, 1194714071, was assigned on October 13, 2005. Randall Riemer graduated from Ferris State College - College of Optometry in 1984. Randall Riemer holds Michigan license 4901002984.
- NPI
- 1194714071NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810013836
- NPI enumeration date
- October 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (517) 272-1063
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Randall John Riemer practices at Genesis Surgery Center - Lansing in Lansing, Michigan
Randall Riemer's primary practice is Genesis Surgery Center - Lansing, at 3400 E. Jolly Road, Lansing, MI 48910. The practice phone is (517) 272-1063.
- Genesis Surgery Center - Lansing3400 E. Jolly Road, Lansing, MI 48910Phone(517) 272-1063
Source: Dmand AI Affiliation Data
Randall John Riemer is affiliated with 2 sites of care
Randall Riemer's primary practice is Genesis Surgery Center - Lansing in Lansing, Michigan. Dmand AI also links Randall Riemer to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Randall John Riemer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Randall Riemer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Genesis Surgery Center - Lansing | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Randall John Riemer is one of 1,416 optometrists in Michigan
Optometrist is Randall Riemer's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Randall Riemer is licensed in Michigan.
Specialties and state licenses
- Optometrist, MichiganPrimary
Optometrists near Randall Riemer
Counts of optometrists 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
Randall John Riemer treated 98 Medicare patients in 2024, average age 75
CMS counts 98 Medicare patients who saw Randall Riemer in 2024. The largest group is 65 to 74, with 40 patients. 75% of them have high blood pressure, and 71% have high cholesterol. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Randall Riemer's median patient age at 71, with 52% women.
Randall Riemer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Randall Riemer's Medicare patients by sex, 2024
- Women6566%
- Men3334%
Chronic conditions among Randall Riemer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis43%
- Chronic kidney disease34%
- Diabetes33%
- Anxiety32%
- Depression27%
- Mood disorders27%
Share of Medicare patients with each condition. A patient can have several.
Randall Riemer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Randall John Riemer wrote 325 Medicare Part D claims in 2024
In 2024, Randall Riemer wrote 325 Medicare Part D claims for 83 patients. 76% of them were for generic drugs.
Randall Riemer's Part D claims by kind of drug, 2024
- Generic248 claims76%
- Brand-name77 claims24%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Randall John Riemer ranks in the 62nd percentile for cataract surgery in Medicare
Randall Riemer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 47 procedures of cataract surgery by Randall Riemer, more than 62% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Randall Riemer ranks in Medicare procedure volume
- Cataract surgery
- 62nd percentile47 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Randall John Riemer received $46 in industry payments in 2025
CMS Open Payments shows 1 general payment to Randall Riemer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Apellis Pharmaceuticals, Inc. paid the most, $46.
Companies that paid Randall Riemer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Randall John Riemer graduated from Ferris State College - College of Optometry
Randall Riemer graduated from Ferris State College - College of Optometry in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Randall John Riemer'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 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 (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)Doctors and Clinicians Utilization Data (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 Randall John Riemer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Randall John Riemer's NPI number?
Randall John Riemer's NPI number is 1194714071. It was assigned on October 13, 2005, and it is active in the NPI Registry.
What does Randall John Riemer specialize in?
Randall John Riemer is an optometrist in Lansing, Michigan. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Randall John Riemer practice?
Randall Riemer practices at 3400 E. Jolly Road, Lansing, MI 48910. Randall Riemer's primary practice is Genesis Surgery Center - Lansing in Lansing, Michigan. Dmand AI also links Randall Riemer to 1 physician office.
What is Randall John Riemer's office phone number?
The practice phone on file for Randall Riemer is (517) 272-1063.
What is Randall John Riemer's medical license number?
Randall Riemer holds Michigan license 4901002984.
Does Randall John Riemer accept Medicare?
Yes. CMS lists Randall Riemer as accepting Medicare assignment.
How many Medicare patients does Randall John Riemer see?
CMS counts 98 Medicare patients who saw Randall Riemer in 2024, with an average age of 75.
Where did Randall John Riemer go to medical school?
Randall Riemer graduated from Ferris State College - College of Optometry in 1984.
Has Randall John Riemer received payments from drug or device companies?
CMS Open Payments shows $46 in general payments to Randall Riemer from 1 company from 2025 to 2025. The largest total came from Apellis Pharmaceuticals, Inc.
How long has Randall John Riemer been practicing?
Randall Riemer graduated from medical school in 1984, 42 years ago.
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