Dr. Michael M. Johnson
- Gender: Male
- Experience: 19 years
- Graduation year: 2002
- Sole propriator: No
- NPI: 1386653236
Dr. Michael M. Johnson M.D.
Internist
He is located at 1308 South Highway 16 in Fredericksburg, TX 78624. Can help patients with the following: Bladder Control, Cholecystitis, Constipation, Heart Disease, Migraine, Prescription Refill. His National Provider Identifier (NPI) number is 1386653236. Appointment can be made via the phone number (830) 997-2181. He is affiliated with 1 practices and 4 hospitals.
Conditions treated
Dr. Michael Matlock Johnson, being an internist, 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. Michael M. Johnson.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Michael M. Johnson
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Michael M. Johnson as in-network for the following 2026 plans.
Health plans
Ambetter from Superior HealthPlan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 12 plans from Ambetter from Superior HealthPlan
| 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 |
| Enhanced Diabetes Care Silver with $0 Drug Options | EPO · Silver | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | 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 |
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. Michael M. Johnson 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. Michael M. Johnson is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Bills through: Fredericksburg Clinic Pllc
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Janssen | $258 |
| Merck | $121 |
| Covidien | $100 |
Other
| Food and Beverage | $578 |
Studies
Graduated in 2002
Affiliated hospitals
Looking for more Internists?
Out of the 16 internists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: Suite 130 205 West Windcrest Street Fredericksburg, 78624, TX
- Gender: Female
- Address: 1331 Bandera Highway Suite 4 Kerrville, 78028, TX
- Gender: Male
- Address: 1020 South State Highway 16 Fredericksburg, 78624, TX
- Gender: Male
- Address: Suite 100 140 Industrial Loop Fredericksburg, 78624, TX
- Gender: Male
- Address: 1308 South State Highway 16 Fredericksburg, 78624, TX
- Gender: Male
- Address: 205 North Bowie Street Fredericksburg, 78624, TX
- Gender: Female
- Address: 1308 South State Highway 16 Fredericksburg, 78624, TX
- Gender: Male
- Address: 1308 South State Highway 16 Fredericksburg, 78624, TX
- Gender: Female
- Address: Suite 310 205 West Windcrest Street Fredericksburg, 78624, TX
Questions & Answers
Does Dr. Michael Matlock Johnson have affiliation with practices?
Dr. Michael Matlock Johnson is affiliated with Fredericksburg Clinic.
Does Dr. Michael Matlock Johnson accept patients with Ambetter from Superior HealthPlan?
Yes, Dr. Michael Matlock Johnson is listed in-network for Ambetter from Superior HealthPlan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. Michael Matlock Johnson treat?
Dr. Michael Matlock Johnson provides treatment for Bladder Control, Cholecystitis, Constipation, Heart Disease, Migraine, Prescription Refill. For the full list see this list.
Where can you meet with Dr. Michael Matlock Johnson?
Dr. Michael Matlock Johnson's office is located at 1308 South Highway 16 in Fredericksburg, TX 78624.
Has Dr. Michael Matlock Johnson affiliation with hospitals?
Dr. Michael Matlock Johnson is affiliated with PETERSON REGIONAL MEDICAL CENTER. For the full list of hospitals see this list.