Dr. Frederick S. Isaak
- Gender: Male
- Experience: 35 years
- Graduated from: University Of North Dakota School Of Medicine
- Graduation year: 1986
- Sole propriator: No
- NPI: 1639129281
Dr. Frederick S. Isaak M.D.
Family Physician
He is located at 1000 Langworthy Street in Dubuque, IA 52001. Can help patients with the following: Anxiety, Arthritis, Autism, Broken Bone, Fever, Pregnancy. His National Provider Identifier (NPI) number is 1639129281. Appointment can be made via the phone number (563) 584-3455. He is affiliated with 3 practices and 1 hospitals.
Conditions treated
Dr. Frederick Simon Isaak, being an family physician, 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. Frederick S. Isaak.
- Abdominal Pain
- Acute Pain
- Aging In Place
- Altitude Sickness
- Angina
- Anxiety
- Arthritis
- Asthma
- Autism
- Birth Control Counseling
- Brain Aneurysm
- Brain Hemorrhage
- Breastfeeding and Lactation
- Broken Bone
- Bruises
- Choking
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Coronavirus
- Costochondritis
- Diabetes
- Febrile Seizure
- Fever
- Frostbite
- General Care
- Head Injury
- Headache
- Hearing Conservation
- Heart Disease
- Hematoma
- High Blood Pressure
- Hyperlipidemia
- Hypothyroidism
- Infant Care
- Influenza
- Insect Stings
- Laceration
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Phlebitis and Thrombophlebitis
- Pregnancy
- Prenatal Care
- Prescription Refill
- Spinal Cord Injury
- Thyroid Disease
- Traumatic Brain Injury
- Whiplash
- Women's Health
Procedures Performed by Dr. Frederick S. Isaak
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Frederick S. Isaak as in-network for the following 2026 plans.
Health plans
Medica
Network data as of May 6, 2024, as reported by the insurer.
Show all 9 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Medica Insure Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Standardtier | Accepting new patients |
| Medica Insure Bronze Share | EPO · Expanded Bronze | Standardtier | Accepting new patients |
| Medica Insure Expanded Bronze Standard | EPO · Expanded Bronze | Standardtier | Accepting new patients |
| Medica Insure Gold $0 Copay PCP Visits | EPO · Gold | Standardtier | Accepting new patients |
| Medica Insure Gold Share | EPO · Gold | Standardtier | Accepting new patients |
| Medica Insure Gold Standard | EPO · Gold | Standardtier | Accepting new patients |
| Medica Insure Silver $0 Copay PCP Visits | EPO · Silver | Standardtier | Accepting new patients |
| Medica Insure Silver Share | EPO · Silver | Standardtier | Accepting new patients |
| Medica Insure Silver Standard | EPO · Silver | Standardtier | Accepting new patients |
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | MercyOne | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | MercyOne | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | MercyOne | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | MercyOne | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Chronic Care CKM | MercyOne | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | MercyOne | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | MercyOne | EPO · Gold | Preferred | Accepting new patients |
| Gold Elite | MercyOne | EPO · Gold | Preferred | Accepting new patients |
| Secure | MercyOne | EPO · Catastrophic | Preferred | Accepting new patients |
| Silver Classic Standard | MercyOne | EPO · Silver | Preferred | Accepting new patients |
| Silver Classic | MercyOne | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits | MercyOne | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM | MercyOne | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | MercyOne | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | MercyOne | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | MercyOne | 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. Frederick S. Isaak 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. Frederick S. Isaak is enrolled to bill Medicare as a Practitioner - Family Practice .
Bills through: Medical Associates Clinic P C
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
| Boehringer Ingelheim | $25 |
Other
| Food and Beverage | $25 |
Studies
UNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated in 1986Additional Specialities
- Emergency Physician
- Occupational Medicine Specialist
Affiliated practices
Looking for more Family Physicians?
Out of the 29 family physicians in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 25 North Winfield Road Winfield, 60190, IL
- Gender: Female
- Address: 1000 Langworthy Street Dubuque, 52001, IA
- Gender: Female
- Address: 1000 Langworthy Street Dubuque, 52001, IA
- Gender: Female
- Address: Suite 106 200 Mercy Drive Dubuque, 52001, IA
- Gender: Male
- Address: Suite 4100 1500 Delhi Street Dubuque, 52001, IA
- Gender: Female
- Address: 4025 Westmark Drive Suite D Dubuque, 52002, IA
- Gender: Female
- Address: 1000 Langworthy Street Dubuque, 52001, IA
- Gender: Male
- Address: Suite D 320 North Grandview Avenue Dubuque, 52001, IA
- Gender: Female
- Address: Suite 100 1515 Delhi Street Dubuque, 52001, IA
Questions & Answers
Does Dr. Frederick Simon Isaak accept patients with Oscar Insurance Company?
Yes, Dr. Frederick Simon Isaak is listed in-network for Oscar Insurance Company through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. Frederick Simon Isaak affiliation with hospitals?
Dr. Frederick Simon Isaak is affiliated with MERCY MEDICAL CENTER-DUBUQUE.
What conditions does Dr. Frederick Simon Isaak treat?
Dr. Frederick Simon Isaak provides treatment for Anxiety, Arthritis, Autism, Broken Bone, Fever, Pregnancy. For the full list see this list.
Does Dr. Frederick Simon Isaak have affiliation with practices?
Dr. Frederick Simon Isaak is affiliated with Tri-State Surgery Center. For the full list of practices see this list.
Where can you meet with Dr. Frederick Simon Isaak?
Dr. Frederick Simon Isaak's office is located at 1000 Langworthy Street in Dubuque, IA 52001.