Dr. Gregory Mumm, MD

Dr. Gregory Mumm, MD

Rheumatology  |  
Male  |  
Age 39
Insurances AcceptedSave
Dr. Gregory Mumm, MD is a rheumatology doctor who practices in Sioux Falls, SD. He is 39 years old and has been practicing for 13 years. Dr. Mumm is affiliated with Sioux Center Health Avera, Avera Queen of Peace, Avera McKennan Hospital and University Health Center and Madison Community Hospital.

1301 S Cliff Ave Ste 300

Sioux Falls, SD 57105

Contact Information

(605) 322-6625

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Minnesota
  • Cigna
  • First Health (Coventry Health Care)
  • Humana
  • MultiPlan

*Please verify this information when scheduling an appointment.

Learn about Dr. Mumm

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Top Care Areas


See how frequently Dr. Mumm performs your care needs compared to other doctors.

very high
more than 99% of peers
very high
more than 99% of peers
very high
more than 99% of peers

Dr. Mumm's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

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  • Rheumatology

Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
  • Rheumatology
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Adhesive Capsulitis
  • Amyloidosis
  • Ankylosing Spondylitis
  • Ankylosing Vertebral Hyperostosis
  • Antiphospholipid Syndrome (APS)
  • Arthritis
  • Arthropathy Associated With Reiters Disease
  • Autoimmune Diseases
  • Behçet's Disease
  • Bleeding Disorders
  • Bone Disorders
  • Bursitis
  • Carpal Tunnel Syndrome
  • Chondrocalcinosis
  • Chronic Fatigue Syndrome
  • Chronic Neck Pain
  • Chronic Pain
  • Cutaneous Lupus Erythematosus
  • De Quervain's Disease
  • Degenerative Disc Disease
  • Dermatomyositis
  • Difficulty With Walking
  • Dry Eyes
  • Dupuytren's Contracture
  • Elbow Injuries
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Enthesopathy of Knee (incl. Bursitis of Knee)
  • Familial Mediterranean Fever
  • Felty's Syndrome
  • Fever
  • Fibromyalgia
  • Foot Conditions
  • Gout
  • Hand Conditions
  • Immune Thrombocytopenic Purpura (ITP)
  • Intervertebral Disc Disease
  • Joint Pain
  • Knee Disorders
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Limb Cramp
  • Limb Pain
  • Limb Swelling
  • Low Back Pain
  • Lupus
  • Malaise and Fatigue
  • Muscle Weakness
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Patellofemoral Pain Syndrome or Knee Pain
  • Plantar Fasciitis
  • Polymyalgia Rheumatica (PMR)
  • Polymyositis
  • Psoriatic Arthritis
  • Pulmonary Disease
  • Purpura
  • Raynaud's Disease
  • Reiter's Syndrome (Reactive Arthritis)
  • Rheumatoid Arthritis
  • Sarcoidosis
  • Scleroderma
  • Shoulder Disorders
  • Shoulder Impingement Syndrome
  • Sjögren's Syndrome
  • Spine Disorders
  • Spondylitis
  • Still's Disease
  • Systemic Sclerosis
  • Systemic Vasculitis
  • Temporal Arteritis
  • Trigger Finger
  • Vascular Disease
  • Vasculitis
  • Wegener's Granulomatosis


Read More


  • Abscess or Cyst Drainage or Aspiration
  • Joint Drainage
  • Myofascial Trigger Point Injection
  • Puncture Aspiration
  • Steroid Injection
  • Trigger Point Injection
  • Viscosupplementation With Hyaluronate

Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for South Dakota.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Univ Of Nd Sch Of Med and Hlth Sci
    Medical School | Graduated 2004

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Mumm has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Mumm does not have any memberships or affiliations listed. If you are Dr. Mumm and would like to add memberships or affiliations, please update your profile.

Dr. Mumm's Reviews

Likelihood of recommending Dr. Mumm to family and friends
based on 29 total reviews (10 with comments)
Dr. Mumm's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Comments (10)
Aberdeen |
Dr Mumm is very Arrogant. He didn't take the time to listen to my issues. I had had a recent surgery and he told me I did not need the surgery. Overall he did not seem to have an interest in listening to what was going on with me me at all. He was a referral from my GP and my GP told me he had 5 other patients go to him and none of them were happy. Fibromyalgia was the diagnosis for all 6 of of. us and my doctors know I do not have fibromyalgia. I hope I find someone that can diagnose me.
Eureka |
Our experience with Dr. Mumm has been excellent. He is very thorough, keeps you up to date with any changes, is very caring and explains everything so you can understand. He is an excellent diagnostician and we highly recommend him.
Sioux Falls, SD |
Dr. Mumm is a very caring and personable doctor. I was transferred to him after my rheumatologist left the state. He listens and asks questions and finds the best solution to the problem. I would definitely recommend him.
Sioux Falls, SD |
Dr. Mumm misquoted my medication history many times & corrected him but he was very dismissive of anything I had to say. He based his diagnosis on the misinformation and gave me a prescription for antidepressants and flat out told me my ailments were all in my head despite the fact that I had physical and visual symptoms, lab tests and imaging (MRI and ct scan) results proving otherwise. He was so insensitive and completely dismissive, he didn't listen to anything I had to say.
in Orange City, IA |
I would not choose a diagnosis of RA for myself, but I am thankful for Dr Mumm and his care along my journey. During my initial diagnosis Dr Mumm quietly explained the disease & gave me information to take home and read. This was the perfect approach as I was overwhelmed at first. During following visits he has asked for questions and has been willing to discuss alternative treatments. I appreciate his knowledge of new medicines and techniques!
in Watertown, SD |
Dr. Mumm was extremely fast, uncaring, would not listen to my main complaints, did not check me over physically where I had told him I had pain and swelling, did not have any empathy, and could not get out of the exam room fast enough! Would not recommend this doctor to anyone!! I literally would not trust him with my cat!
Sioux Falls, SD |
Whether you have not been diagnosed, are newly diagnosed or looking for a "continuation of care" and new to Sioux Falls; I would not recommend Dr. Gregory Mumm to anyone. He lacks "bedside" manners, does not "listen" to you and did not respect my Rheumatologists diagnosis and treatments plan from another state that was finally working for me. If you are looking for an excellent rheumatologist, do NOT see Dr. Mumm.
Sioux Falls, SD |
I would never recommend Dr. Mumm. He was short, rude, had no empathy, and wouldn't look my husband and I in the eye. It was obvious he did not care to understand or listen about my already diagnosed disease, let alone come up with a care plan. He had no intention of listening to what many of my other doctors had advised. It was clear he did not know enough about the disease and was unwilling to research or understand. I walked out of that appointment in tears.
Pierre, SD |
He shows no emotion. He had absolutely no empathy, I was tearful over my constant pain with my fibromyalgia and he said I would just have to live with it. He gave me some copied information about a new drug treatment (experimental and not covered by Medicaid) and said he could not help me and to see my primary Doctor. When I tried to find another rheumatologist I found I am blocked from all Avea doctors because they would consider it a second opinion, even though I didn't dispute his diagnosis.
in Sioux Falls, SD |
It has been a few years ago, but I had an excellent experience with Dr. Mumm. His office staff could use a little work, but the Doctor himself was excellent. He took the time to fully explain my condition. He sat and talked with me for at least 30 minutes about treatment options etc... He even took the time to go out to his own lobby and bring back pamphlets and documentation on the condition as well as support groups. I could not have been any happier with him as a doctor.
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Now Accepting New Patients
Dr. Mumm accepts 7 insurance carriers
  • Aetna
    Choice Plus POS II
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of Minnesota
    Blue Cross Accord
  • Cigna
    Cigna PPO
    Open Access Plus
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Humana
    Choice Care PPO
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Mumm has admitting privileges

Avera McKennan Hospital and University Health Center
1325 S Cliff Ave
Sioux Falls, SD 57105
View Hospital Profile
Avera Queen of Peace
525 N Foster St
Mitchell, SD 57301
View Hospital Profile
Madison Community Hospital
323 10th Street Southwest
Madison, SD 57042
View Hospital Profile
Sioux Center Health Avera
1101 9th St SE
Sioux Center, IA 51250
View Hospital Profile

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