Dr. Jon W. Mares
- Gender: Male
- Experience: 9 years
- Sole propriator: No
- NPI: 1023375300
Dr. Jon W. Mares D.O.
Nephrologist
He is located at 1970 North Highway 190 in Covington, LA 70433. Can help patients with the following: Encephalopathy, Guillain-Barre Syndrome (GBS), Hyponatremia, Inguinal Hernia, Peripheral Nerve Tumors, Sciatica. His National Provider Identifier (NPI) number is 1023375300. Appointment can be made via the phone number (985) 867-8585. He is affiliated with 4 practices.
Conditions treated
Dr. Jon William Mares, being an nephrologist, 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. Jon W. Mares.
- Abdominal Pain
- Acute Pain
- Alzheimer's Disease
- Amnesia
- Amyotrophic Lateral Sclerosis (ALS)
- Anemia
- Aphasia
- Arthritis
- Asthma
- Atherosclerosis
- Autism
- Bladder Control
- Blood in Urine
- Brain Aneurysm
- Brain Damage
- Brain Hemorrhage
- Cerebral Palsy (CP)
- Cervical Radiculopathy
- Charcot-Marie-Tooth Disease (CMT)
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Claudication
- Cluster Headaches
- Common Cold
- Complex Regional Pain Syndrome
- Concussion
- Constipation
- Creutzfeldt-Jakob Disease (CJD)
- Cystitis
- Degenerative Disc Disease (DDD)
- Dementia
- Diarrhea
- Double Vision
- Dyslexia
- Dystonia
- Early Onset Alzheimers
- Edema
- Encephalitis
- Encephalopathy
- Epilepsy
- Face Blindness
- Fainting
- Febrile Seizure
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Gout
- Guillain-Barre Syndrome (GBS)
- Head Injury
- Headache
- Heart Disease
- Hemolytic Uremic Syndrome (HUS)
- Herniated Disc
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Huntington's Disease (HD)
- Hydronephrosis
- Hypercalcemia
- Hyperkalemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Kidney Failure
- Kidney Infection
- Kidney Stones
- Low Back Pain
- Low Blood Pressure
- Low Potassium
- Lumbar Spinal Stenosis
- Mad Cow Disease
- Meningitis
- Meralgia Paresthetica
- Migraine
- Motion Sickness
- Multiple Sclerosis (MS)
- Myasthenia Gravis (MG)
- Myofascial Pain Syndrome (MPS)
- Nausea and Vomiting
- Nerve Damage
- Neuropathic Pain
- Obesity
- Optic Neuritis
- Osteoporosis
- PANDAS
- Paralysis
- Parkinson's Disease
- Peptic Ulcer
- Peripheral Nerve Injuries
- Peripheral Nerve Tumors
- Peripheral Neuropathy
- Pinched Nerve
- Polio
- Polycystic Kidney Disease (PKD)
- Prescription Refill
- Progressive Neurological Disorders
- Pseudotumor Cerebri
- Rhabdomyolysis
- Sciatica
- Seizures
- Stiff Person Syndrome (SPS)
- Stroke
- Tardive Dyskinesia
- Tension Headache
- Tics
- Tinnitus
- Tourette Syndrome
- Transient Ischemic Attack (TIA)
- Traumatic Brain Injury
- Tremor
- Trigeminal Neuralgia (TN)
- Urethritis
- Urinary Tract Infection (UTI)
- Vertigo
- Vestibular Testing
- Vitamin D Deficiency
- Wernicke-Korsakoff Syndrome
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Jon W. Mares as in-network for the following 2026 plans.
Health plans
Ambetter from Louisiana Healthcare Connections
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Ambetter from Louisiana Healthcare Connections
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Elite Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Gold | EPO · Gold | Preferred | Accepting new patients |
| Elite Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
HMO Louisiana
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 12 plans from HMO Louisiana
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue POS 60/40 $6500 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Blue POS 80/60 $3200 with 2 $0 PCP Virtual Visits | POS · Silver | Not Applicable | Accepting new patients |
| Blue POS 90/70 $9900 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 50/50 $7500 Standardized HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 60/40 $6000 Standardized | POS · Silver | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 75/55 $2000 Standardized | POS · Gold | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 80/60 $1000 with 2 $0 PCP Virtual Visits | POS · Gold | Not Applicable | Accepting new patients |
| Signature Blue 80/60 $3200 with 2 $0 PCP Virtual Visits | POS · Silver | Not Applicable | Accepting new patients |
| Signature Blue 90/70 $9900 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Signature Blue Copay (PCP) 50/50 $7500 Standardized HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Signature Blue Copay (PCP) 60/40 $6000 Standardized | POS · Silver | Not Applicable | Accepting new patients |
| Signature Blue Copay (PCP) 75/55 $2000 Standardized | POS · Gold | Not Applicable | 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. Jon W. Mares 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. Jon W. Mares is enrolled to bill Medicare as a Practitioner - Nephrology .
Bills through: Nni Covington Llc
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
| Mallinckrodt | $33 |
| Boston Scientific | $18 |
| Relypsa | $17 |
Other
| Food and Beverage | $80 |
Additional Specialities
- Internist
- Neurologist
- Resident
Affiliated practices
Looking for more Nephrologists?
There are 7 other nephrologists in this region.
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- Address: 217 Cherokee Rose Lane Covington, 70433, LA
- Gender: Male
- Address: 146 Cherryfield Lane Savannah, 31419, GA
- Gender: Male
- Address: 1514 Jefferson Highway New Orleans, 70121, LA
- Gender: Male
- Address: 2651 Bolton Boone Drive DeSoto, 75115, TX
- Gender: Male
- Address: 1970 North Highway 190 Covington, 70433, LA
- Gender: Female
- Address: 1970 North Highway 190 Covington, 70433, LA
- Gender: Male
- Address: 1970 North Highway 190 Covington, 70433, LA
Questions & Answers
Does Dr. Jon William Mares accept insurance?
Dr. Jon William Mares is listed in-network for 28 ACA Marketplace (Obamacare/HealthCare.gov) plans from Ambetter from Louisiana Healthcare Connections, HMO Louisiana. See the Marketplace plans section for details.
Does Dr. Jon William Mares have affiliation with practices?
Dr. Jon William Mares is affiliated with Millennium Physicians - Respiratory & Sleep Disorders Specialists. For the full list of practices see this list.
What conditions does Dr. Jon William Mares treat?
Dr. Jon William Mares provides treatment for Encephalopathy, Guillain-Barre Syndrome (GBS), Hyponatremia, Inguinal Hernia, Peripheral Nerve Tumors, Sciatica. For the full list see this list.
Where can you meet with Dr. Jon William Mares?
Dr. Jon William Mares's office is located at 1970 North Highway 190 in Covington, LA 70433.