Dr. Cathy S. Hennies
- Gender: Female
- Experience: 25 years
- Graduated from: Sanford School Of Medicine Of University Of South Dakota
- Graduation year: 1996
- Sole propriator: No
- NPI: 1396749768
Dr. Cathy S. Hennies M.D.
Family Physician
She is located at 640 Flormann Street in Rapid City, SD 57701. Can help patients with the following: Anxiety, Common Cold, General Care, Heart Disease, Hyperlipidemia, Thyroid Disease. Her National Provider Identifier (NPI) number is 1396749768. Appointment can be made via the phone number (605) 755-3300. She also has a website where you can get more information. The website can be found at https://directory.monument.health/provider/sd/rapid-city/cathy-hennies-md. She is affiliated with 5 practices and 1 hospitals.
Conditions treated
Dr. Cathy S. Hennies, 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. Cathy S. Hennies.
- Abdominal Pain
- Aging In Place
- Anxiety
- Arthritis
- Asthma
- Autism
- Birth Control Counseling
- Breastfeeding and Lactation
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Diabetes
- Fever
- General Care
- Headache
- Heart Disease
- High Blood Pressure
- Hyperlipidemia
- Hypothyroidism
- Infant Care
- Influenza
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Pregnancy
- Prenatal Care
- Prescription Refill
- Thyroid Disease
- Women's Health
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Cathy S. Hennies as in-network for the following 2026 plans.
Health plans
Sanford Health Plan
Network data as of Aug 9, 2018, as reported by the insurer.
Show all 8 plans from Sanford Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Sanford Individual Simplicity $1,750 | PPO · Gold | Simplicity | Accepting new patients |
| Sanford Individual Simplicity $3,500 | PPO · Silver | Simplicity | Accepting new patients |
| Sanford Individual Simplicity $4,750 | PPO · Silver | Simplicity | Accepting new patients |
| Sanford Individual Simplicity $6,500 | PPO · Expanded Bronze | Simplicity | Accepting new patients |
| Sanford Individual Simplicity $7,200 HSA Qualified | PPO · Expanded Bronze | Simplicity | Accepting new patients |
| Sanford Individual Simplicity Standardized $2,000 | PPO · Gold | Simplicity | Accepting new patients |
| Sanford Individual Simplicity Standardized $6,000 | PPO · Silver | Simplicity | Accepting new patients |
| Sanford Individual Simplicity Standardized $7,500 | PPO · Expanded Bronze | Simplicity | Accepting new patients |
Wellmark of South Dakota, Inc.
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 7 plans from Wellmark of South Dakota, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Wellmark Bronze HDHP EPO HSA Qualified (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Bronze Traditional EPO (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Gold Traditional EPO (2 plan variants) | EPO · Gold | Bluerx Essentials | Accepting new patients |
| Wellmark Silver Traditional EPO (2 plan variants) | EPO · Silver | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Bronze EPO (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Gold EPO (2 plan variants) | EPO · Gold | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Silver EPO (2 plan variants) | EPO · Silver | Bluerx Essentials | 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. Cathy S. Hennies 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. Cathy S. Hennies is enrolled to bill Medicare as a Practitioner - Family Practice .
Bills through: Monument Health Rapid City Hospital 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
| Sanofi | $50 |
| Novo Nordisk | $38 |
| Amgen | $25 |
Other
| Food and Beverage | $189 |
Studies
SANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated in 1996Other ways to reach out
- Website: https://directory.monument.health/provider/sd/rapid-city/cathy-hennies-md
Affiliated practices
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Questions & Answers
Where can you meet with Dr. Cathy S. Hennies?
Dr. Cathy S. Hennies's office is located at 640 Flormann Street in Rapid City, SD 57701.
What conditions does Dr. Cathy S. Hennies treat?
Dr. Cathy S. Hennies provides treatment for Anxiety, Common Cold, General Care, Heart Disease, Hyperlipidemia, Thyroid Disease. For the full list see this list.
Has Dr. Cathy S. Hennies affiliation with hospitals?
Dr. Cathy S. Hennies is affiliated with REGIONAL HEALTH RAPID CITY HOSPITAL.
Does Dr. Cathy S. Hennies have affiliation with practices?
Dr. Cathy S. Hennies is affiliated with Sanford Cardiovascular Institute. For the full list of practices see this list.
Does Dr. Cathy S. Hennies accept insurance?
Dr. Cathy S. Hennies is listed in-network for 15 ACA Marketplace (Obamacare/HealthCare.gov) plans from Sanford Health Plan, Wellmark of South Dakota, Inc.. See the Marketplace plans section for details.