John Markus Rieth, MD
Medical Oncology Internal Medicine
John Markus Rieth is a Medical Oncology Internal Medicine specialist based in Iowa City, IA with over 8 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
John Markus Rieth, MD has been part of the Iowa City medical community since 2018 in group practice. Trained at Indiana University School of Medicine (class of 2018), he has been practicing for over 8 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and cancer (per CMS data).
At a glance
- Uses generic medications more than 33% of reporting doctors in Iowa
- Virtual visits available — no app or travel required
Older · 1036dNPPES updated 2023-07-22 · verify NPI on CMS · Verify license at Iowa Board of Medicine
Contact & Location
Practice Location
200 Hawkins Dr, Iowa City, IA 52242-1009
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better85.9%
Iowa avg: 84.9 · US avg: 82.8
✓ Higher than most doctors nationally(+3.1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
74
Unique beneficiaries
Standard volumePrescription Recipients
38
Patients prescribed
Prescriptions Written
149
Total claims
Total Medicare drug cost: $129k
Percentile rankings compared against 75 reporting peers in Iowa.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Cancer.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+4%) — a focus area for this doctor
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+22%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-8%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-2%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+5%) — a focus area for this doctor
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+4%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$8.6k received from industry
19 transactions reported in 2024 ·High tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to John Markus Rieth's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2018
Indiana University School of Medicine
Board certified · Jul 21, 2023
Self-reported via NPPES
8 years in practice
Established
Medical oncologists diagnose and treat cancer using chemotherapy, immunotherapy, targeted therapy, and hormone therapy. They coordinate care with surgical oncologists and radiation oncologists for comprehensive cancer treatment.
Taxonomy: 207RX0202X
Education & Training
Indiana University School of Medicine (Class of 2018)
Virtual Medical Oncology Care With John Markus Rieth
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John Markus Rieth for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Iowa City required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about John Markus Rieth
Dr. Rieth is listed as active in the NPI registry with telehealth listed in Iowa City, IA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (319) 356-3077.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact John Markus Rieth
Practice Location
200 Hawkins Dr, Iowa City, IA 52242-1009
Mailing Address
200 Hawkins Dr, Iowa City, IA 52242-1009
This is a provider directory. Contact the office directly to schedule appointments.
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