Dr. Nathan D. Grunewald
- Gender: Male
- Experience: 10 years
- Graduated from: Medical College Of Wisconsin
- Graduation year: 2011
- Sole propriator: No
- NPI: 1396044509
Dr. Nathan D. Grunewald
Urologist
He is located at 260 26th Street in Prairie du Sac, WI 53578. Can help patients with the following: Bladder Cancer, Motion Sickness, Trigeminal Neuralgia (TN), Urinary Tract Infection (UTI), Uterine Cancer, Vertigo. His National Provider Identifier (NPI) number is 1396044509. Appointment can be made via the phone number (608) 643-3311. He is affiliated with 1 hospitals.
Conditions treated
Dr. Nathan D. Grunewald, being an urologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Nathan D. Grunewald.
- Alzheimer's Disease
- Amnesia
- Amyotrophic Lateral Sclerosis (ALS)
- Aphasia
- Autism
- Benign Prostatic Hyperplasia (BPH)
- Bladder Cancer
- Bladder Control
- Bladder Spasms
- Blood in Semen
- Blood in Urine
- Brain Aneurysm
- Brain Damage
- Brain Hemorrhage
- Cerebral Palsy (CP)
- Cervical Radiculopathy
- Charcot-Marie-Tooth Disease (CMT)
- Chlamydia
- Claudication
- Cluster Headaches
- Complex Regional Pain Syndrome
- Concussion
- Creutzfeldt-Jakob Disease (CJD)
- Degenerative Disc Disease (DDD)
- Dementia
- Double Vision
- Dyslexia
- Dystonia
- Early Onset Alzheimers
- Encephalitis
- Encephalopathy
- Epididymitis
- Epilepsy
- Erectile Dysfunction (ED)
- Face Blindness
- Fainting
- Febrile Seizure
- Guillain-Barre Syndrome (GBS)
- Head Injury
- Headache
- Heart Disease
- Herniated Disc
- Huntington's Disease (HD)
- Hydrocele
- Hydronephrosis
- Infertility
- Kidney Infection
- Kidney Stones
- Low Back Pain
- Lumbar Spinal Stenosis
- Mad Cow Disease
- Meningitis
- Mens Health
- Meralgia Paresthetica
- Migraine
- Motion Sickness
- Multiple Sclerosis (MS)
- Myasthenia Gravis (MG)
- Myofascial Pain Syndrome (MPS)
- Nerve Damage
- Neuropathic Pain
- Optic Neuritis
- Overactive Bladder (OAB)
- PANDAS
- Painful Bladder Syndrome
- Paralysis
- Parkinson's Disease
- Peripheral Nerve Injuries
- Peripheral Nerve Tumors
- Peripheral Neuropathy
- Pinched Nerve
- Polio
- Premature Ejaculation (PE)
- Priapism
- Progressive Neurological Disorders
- Prostatitis
- Pseudotumor Cerebri
- Sciatica
- Seizures
- Stiff Person Syndrome (SPS)
- Stroke
- Tardive Dyskinesia
- Tension Headache
- Testicular Torsion
- Tics
- Tinnitus
- Tourette Syndrome
- Transient Ischemic Attack (TIA)
- Traumatic Brain Injury
- Tremor
- Trigeminal Neuralgia (TN)
- Undescended Testes
- Urethritis
- Urinary Incontinence (UI)
- Urinary Retention
- Urinary Tract Infection (UTI)
- Uterine Cancer
- Varicocele
- Vertigo
- Vestibular Testing
- Wernicke-Korsakoff Syndrome
Procedures Performed by Dr. Nathan D. Grunewald
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Nathan D. Grunewald as in-network for the following 2026 plans.
Health plans
Anthem Blue Cross and Blue Shield
Network data as of Mar 25, 2026, as reported by the insurer.
Show all 9 plans from Anthem Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad HSA (+ Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 4000 ($0 PCP Visits + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
Aspirus Health Plan
Network data as of Aug 2, 2023, as reported by the insurer.
Show all 12 plans from Aspirus Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HMO Bronze $0 Medical Deductible | HMO · Expanded Bronze | Aspirussign | Accepting new patients |
| HMO Bronze 10000 | HMO · Bronze | Aspirussign | Accepting new patients |
| HMO Bronze 7500 | HMO · Expanded Bronze | Aspirussign | Accepting new patients |
| HMO Catastrophic 10600 with 3 free PCP visits | HMO · Catastrophic | Aspirussign | Accepting new patients |
| HMO Gold 2000 | HMO · Gold | Aspirussign | Accepting new patients |
| HMO Gold 2700 | HMO · Gold | Aspirussign | Accepting new patients |
| HMO HDHP Silver 5900 | HMO · Silver | Aspirussign | Accepting new patients |
| HMO Silver 6000 | HMO · Silver | Aspirussign | Accepting new patients |
| HMO Silver 6600 | HMO · Silver | Aspirussign | Accepting new patients |
| POS Bronze 7500 | POS · Expanded Bronze | Aspirussign | Accepting new patients |
| POS Bronze 8500 | POS · Bronze | Aspirussign | Accepting new patients |
| POS Silver 6000 | POS · Silver | Aspirussign | Accepting new patients |
Group Health Cooperative-SCW
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 9 plans from Group Health Cooperative-SCW
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Partners HMO Bronze 10600 Ded/10600 MOOP HSA | HMO · Bronze | Partners HMO | Accepting new patients |
| Partners HMO Bronze 6000 Ded/10600 MOOP HSA | HMO · Bronze | Partners HMO | Accepting new patients |
| Partners HMO Bronze 7500 Ded/10000 MOOP HSA | HMO · Expanded Bronze | Partners HMO | Accepting new patients |
| Partners HMO Gold 1500 Ded/8000 MOOP with Vision | HMO · Gold | Partners HMO | Accepting new patients |
| Partners HMO Gold 2000 Ded/8200 MOOP | HMO · Gold | Partners HMO | Accepting new patients |
| Partners HMO Gold 4000 Ded/4000 MOOP HSA | HMO · Gold | Partners HMO | Accepting new patients |
| Partners HMO Silver 5500 Ded/8500 MOOP with Vision | HMO · Silver | Partners HMO | Accepting new patients |
| Partners HMO Silver 5975 Ded/5975 MOOP HSA | HMO · Silver | Partners HMO | Accepting new patients |
| Partners HMO Silver 6000 Ded/8900 MOOP | HMO · Silver | Partners HMO | Accepting new patients |
Quartz
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 57 plans from Quartz
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| QUARTZ GUNDERSEN PERFORMANCE BRONZE $0 MEDICAL DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE BRONZE $10,150 DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE BRONZE (DENTAL & VISION) $0 MEDICAL DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE BRONZE (DENTAL & VISION) $10,150 DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE BRONZE (DENTAL & VISION) STANDARD EASY PRICING | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE BRONZE STANDARD EASY PRICING | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE CATASTROPHIC $10,600 DED | HMO · Catastrophic | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE GOLD $4,000 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE GOLD (DENTAL & VISION) $4,000 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE GOLD (DENTAL & VISION) STANDARD EASY PRICING | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE GOLD MAINTENANCE $700 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE GOLD MAINTENANCE (DENTAL & VISION) $700 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE GOLD STANDARD EASY PRICING | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE SILVER $8,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE SILVER $9,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE SILVER (DENTAL & VISION) $8,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE SILVER (DENTAL & VISION) $9,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE SILVER (DENTAL & VISION) STANDARD EASY PRICING | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ GUNDERSEN PERFORMANCE SILVER STANDARD EASY PRICING | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN BRONZE $0 MEDICAL DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN BRONZE $10,150 DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN BRONZE (DENTAL & VISION) $0 MEDICAL DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN BRONZE (DENTAL & VISION) $10,150 DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN BRONZE (DENTAL & VISION) STANDARD EASY PRICING | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN BRONZE STANDARD EASY PRICING | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN CATASTROPHIC $10,600 DED | HMO · Catastrophic | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN GOLD $4,000 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN GOLD (DENTAL & VISION) $4,000 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN GOLD (DENTAL & VISION) STANDARD EASY PRICING | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN GOLD MAINTENANCE $700 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN GOLD MAINTENANCE (DENTAL & VISION) $700 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN GOLD STANDARD EASY PRICING | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN SILVER $8,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN SILVER $9,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN SILVER (DENTAL & VISION) $8,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN SILVER (DENTAL & VISION) $9,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN SILVER (DENTAL & VISION) STANDARD EASY PRICING | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/GUNDERSEN SILVER STANDARD EASY PRICING | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH BRONZE $0 MEDICAL DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH BRONZE $10,150 DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH BRONZE (DENTAL & VISION) $0 MEDICAL DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH BRONZE (DENTAL & VISION) $10,150 DED | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH BRONZE (DENTAL & VISION) STANDARD EASY PRICING | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH BRONZE STANDARD EASY PRICING | HMO · Expanded Bronze | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH CATASTROPHIC $10,600 DED | HMO · Catastrophic | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH GOLD $4,000 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH GOLD (DENTAL & VISION) $4,000 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH GOLD (DENTAL & VISION) STANDARD EASY PRICING | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH GOLD MAINTENANCE $700 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH GOLD MAINTENANCE (DENTAL & VISION) $700 DED | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH GOLD STANDARD EASY PRICING | HMO · Gold | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH SILVER $8,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH SILVER $9,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH SILVER (DENTAL & VISION) $8,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH SILVER (DENTAL & VISION) $9,000 DED | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH SILVER (DENTAL & VISION) STANDARD EASY PRICING | HMO · Silver | Preferred | Accepting new patients |
| QUARTZ ONE ACHIEVE W/UW HEALTH SILVER STANDARD EASY PRICING | HMO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Nathan D. Grunewald is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Nathan D. Grunewald is enrolled to bill Medicare as a Practitioner - Urology .
Bills through: Sauk Prairie Healthcare Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Astellas Pharma | $113 |
| Cook Medical | $98 |
| AbbVie | $96 |
Other
| Food and Beverage | $607 |
Studies
MEDICAL COLLEGE OF WISCONSIN
Graduated in 2011Additional Specialities
- Neurologist
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Questions & Answers
Where can you meet with Dr. Nathan D. Grunewald?
Dr. Nathan D. Grunewald's office is located at 260 26th Street in Prairie du Sac, WI 53578.
Has Dr. Nathan D. Grunewald affiliation with hospitals?
Dr. Nathan D. Grunewald is affiliated with SAUK PRAIRIE HOSPITAL.
Does Dr. Nathan D. Grunewald accept patients with Anthem Blue Cross and Blue Shield?
Yes, Dr. Nathan D. Grunewald is listed in-network for Anthem Blue Cross and Blue Shield through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. Nathan D. Grunewald treat?
Dr. Nathan D. Grunewald provides treatment for Bladder Cancer, Motion Sickness, Trigeminal Neuralgia (TN), Urinary Tract Infection (UTI), Uterine Cancer, Vertigo. For the full list see this list.