Gregory Eric Mumm, M.D.
Rheumatology Internal Medicine
Gregory Eric Mumm is a Rheumatology Internal Medicine specialist based in Sioux Falls, SD with over 22 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
With over 22 years in internal medicine, Gregory Eric Mumm, M.D. is a long-established rheumatologist in Sioux Falls. A University of North Dakota School of Medicine graduate since 2004, he brings 22+ years of experience. CMS Medicare data shows his patients commonly have arthritis, hypertension, and high cholesterol.
At a glance
- Prescribes opioids less than 37% of reporting doctors in South Dakota
- Uses generic medications more than 31% of reporting doctors in South Dakota
- Virtual visits available — no app or travel required
Older · 2397dNPPES updated 2019-10-31 · verify NPI on CMS · Verify license at South Dakota Board of Medical & Osteopathic Examiners
Contact & Location
Practice Location
6100 S Louise Ave Ste 1130, Sioux Falls, SD 57108-6021
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better1.92%
South Dakota avg: 6.6 · US avg: 5.1
✓ Higher than most doctors nationally(-3.2 pts)
1.92% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better82.7%
South Dakota avg: 80.6 · US avg: 82.8
⚠ Lower than most doctors nationally(-0.1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
490
Unique beneficiaries
Standard volumePrescription Recipients
498
Patients prescribed
Prescriptions Written
3,590
Total claims
Total Medicare drug cost: $2.42M
Percentile rankings compared against 117 reporting peers in South Dakota.
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 Arthritis, Hypertension, and High Cholesterol.
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+26%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+1%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-10%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+13%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-11%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-10%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$133 received from industry
6 transactions reported in 2024 ·Low 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 Gregory Eric Mumm's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2004
University of North Dakota School of Medicine
22 years in practice
Experienced
Rheumatologists treat autoimmune and inflammatory conditions including rheumatoid arthritis, lupus, psoriatic arthritis, gout, osteoarthritis, and vasculitis. They manage biologic therapies and joint-preserving treatments.
Taxonomy: 207RR0500X
Education & Training
University of North Dakota School of Medicine (Class of 2004)
Mailing address
Po Box 86370, Sioux Falls, SD 57118-6370
Differs from practice location
Virtual Internal Medicine Care With Gregory Eric Mumm
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Gregory Eric Mumm for arthritis follow-ups, blood pressure monitoring, cholesterol management — no travel to Sioux Falls 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 Gregory Eric Mumm
NPI records show Dr. Mumm as active with telehealth listed in Sioux Falls, SD. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (605) 504-1600.
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 Gregory Eric Mumm
Practice Location
6100 S Louise Ave Ste 1130, Sioux Falls, SD 57108-6021
Mailing Address
Po Box 86370, Sioux Falls, SD 57118-6370
This is a provider directory. Contact the office directly to schedule appointments.
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