Dr. Johnathon T. Markus
- Gender: Male
- Experience: 9 years
- Graduated from: Wayne State University School Of Medicine
- Graduation year: 2012
- Sole propriator: No
- NPI: 1548521461
Dr. Johnathon T. Markus M.D.
Hospitalist
He is located at 37399 Garfield Road Suite 104 in Clinton Twp, MI 48036. Can help patients with the following: Chronic Obstructive Pulmonary Disease (COPD), Edema, Food Allergies, Gallbladder Pain, Hyponatremia, Inguinal Hernia. His National Provider Identifier (NPI) number is 1548521461. Appointment can be made via the phone number (586) 569-3379. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Johnathon Toma Markus, being an hospitalist, 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. Johnathon T. Markus.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Botulism
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Johnathon T. Markus as in-network for the following 2026 plans.
Health plans
Blue Care Network of Michigan
Network data as of Jun 24, 2026, as reported by the insurer.
Show all 16 plans from Blue Care Network of Michigan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Cross® Preferred HMO Bronze Extra | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Preferred HMO Bronze Saver HSA | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Preferred HMO Bronze Secure | HMO · Bronze | Null | Accepting new patients |
| Blue Cross® Preferred HMO Gold | HMO · Gold | Null | Accepting new patients |
| Blue Cross® Preferred HMO Gold Extra | HMO · Gold | Null | Accepting new patients |
| Blue Cross® Preferred HMO Silver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Preferred HMO Silver Extra | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Preferred HMO Silver Saver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Preferred HMO Value | HMO · Catastrophic | Null | Accepting new patients |
| Blue Cross® Select HMO Bronze Extra | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Select HMO Bronze Saver HSA | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Select HMO Bronze Secure | HMO · Bronze | Null | Accepting new patients |
| Blue Cross® Select HMO Silver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Select HMO Silver Extra | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Select HMO Silver Saver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Select HMO Value | HMO · Catastrophic | Null | Accepting new patients |
Blue Cross Blue Shield of Michigan Mutual Insurance Company
Network data as of Jun 24, 2026, as reported by the insurer.
Show all 9 plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Cross® Premier PPO Bronze Extra | PPO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Premier PPO Bronze Saver HSA | PPO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Premier PPO Bronze Secure | PPO · Bronze | Null | Accepting new patients |
| Blue Cross® Premier PPO Gold | PPO · Gold | Null | Accepting new patients |
| Blue Cross® Premier PPO Gold Extra | PPO · Gold | Null | Accepting new patients |
| Blue Cross® Premier PPO Silver | PPO · Silver | Null | Accepting new patients |
| Blue Cross® Premier PPO Silver Extra | PPO · Silver | Null | Accepting new patients |
| Blue Cross® Premier PPO Silver Saver HSA | PPO · Silver | Null | Accepting new patients |
| Blue Cross® Premier PPO Value | PPO · Catastrophic | Null | Accepting new patients |
McLaren Health Plan Community
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 27 plans from McLaren Health Plan Community
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| MHP Bronze | HMO · Bronze | In Network | Accepting new patients |
| MHP Bronze | HMO · Bronze | Out of Network | Accepting new patients |
| MHP Bronze | HMO · Bronze | Rewards | Accepting new patients |
| MHP Bronze Saver (Expanded) | HMO · Expanded Bronze | In Network | Accepting new patients |
| MHP Bronze Saver (Expanded) | HMO · Expanded Bronze | Out of Network | Accepting new patients |
| MHP Bronze Saver (Expanded) | HMO · Expanded Bronze | Rewards | Accepting new patients |
| MHP Expanded Bronze Standard | HMO · Expanded Bronze | In Network | Accepting new patients |
| MHP Expanded Bronze Standard | HMO · Expanded Bronze | Out of Network | Accepting new patients |
| MHP Expanded Bronze Standard | HMO · Expanded Bronze | Rewards | Accepting new patients |
| MHP Gold | HMO · Gold | In Network | Accepting new patients |
| MHP Gold | HMO · Gold | Out of Network | Accepting new patients |
| MHP Gold | HMO · Gold | Rewards | Accepting new patients |
| MHP Gold Standard | HMO · Gold | In Network | Accepting new patients |
| MHP Gold Standard | HMO · Gold | Out of Network | Accepting new patients |
| MHP Gold Standard | HMO · Gold | Rewards | Accepting new patients |
| MHP Silver Exchange | HMO · Silver | In Network | Accepting new patients |
| MHP Silver Exchange | HMO · Silver | Out of Network | Accepting new patients |
| MHP Silver Exchange | HMO · Silver | Rewards | Accepting new patients |
| MHP Silver Exchange Rewards | HMO · Silver | In Network | Accepting new patients |
| MHP Silver Exchange Rewards | HMO · Silver | Out of Network | Accepting new patients |
| MHP Silver Exchange Rewards | HMO · Silver | Rewards | Accepting new patients |
| MHP Silver Standard | HMO · Silver | In Network | Accepting new patients |
| MHP Silver Standard | HMO · Silver | Out of Network | Accepting new patients |
| MHP Silver Standard | HMO · Silver | Rewards | Accepting new patients |
| MHP Young Adult/Catastrophic | HMO · Catastrophic | In Network | Accepting new patients |
| MHP Young Adult/Catastrophic | HMO · Catastrophic | Out of Network | Accepting new patients |
| MHP Young Adult/Catastrophic | HMO · Catastrophic | Rewards | Accepting new patients |
Priority Health
Network data as of Aug 26, 2026, as reported by the insurer.
Show all 9 plans from Priority Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| MyPriority Balanced Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Premier Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Standard Bronze | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Standard Bronze - Travel | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Standard Gold | HMO · Gold | Mypriority HMO | Accepting new patients |
| MyPriority Standard Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Standard Silver - Travel | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze HSA | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus (No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | HMO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential+ (Dental + Vision, No Referrals) | HMO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ (Dental + Vision, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ (Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value+ (Dental + Vision, No Referrals) | HMO · Silver | Non 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. Johnathon T. Markus 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. Johnathon T. Markus is enrolled to bill Medicare as a Practitioner - Gastroenterology (also registered under: Practitioner - Internal Medicine) .
Bills through: Tri-county Gastroenterology, Pc
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.
Studies
WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated in 2012Additional Specialities
- Gastroenterologist
- Internist
- Resident
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Questions & Answers
Has Dr. Johnathon Toma Markus affiliation with hospitals?
Dr. Johnathon Toma Markus is affiliated with MCLAREN MACOMB.
Does Dr. Johnathon Toma Markus accept patients with Blue Cross Blue Shield of Michigan Mutual Insurance Company?
Yes, Dr. Johnathon Toma Markus is listed in-network for Blue Cross Blue Shield of Michigan Mutual Insurance Company through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Does Dr. Johnathon Toma Markus have affiliation with practices?
Dr. Johnathon Toma Markus is affiliated with Tri-County Gastroenterology.
What conditions does Dr. Johnathon Toma Markus treat?
Dr. Johnathon Toma Markus provides treatment for Chronic Obstructive Pulmonary Disease (COPD), Edema, Food Allergies, Gallbladder Pain, Hyponatremia, Inguinal Hernia. For the full list see this list.
Where can you meet with Dr. Johnathon Toma Markus?
Dr. Johnathon Toma Markus's office is located at 37399 Garfield Road Suite 104 in Clinton Twp, MI 48036.