Dr. Mark E. Hennessy
- Gender: Male
- Experience: 30 years
- Sole propriator: Yes
- NPI: 1194784728
Dr. Mark E. Hennessy M.D.
Internist
He is located at 14215 South Post Oak Road in Houston, TX 77045. Can help patients with the following: Atherosclerosis, Fever, Hiatal Hernia, Hypothyroidism, Infant Care, Obesity. His National Provider Identifier (NPI) number is 1194784728. Appointment can be made via the phone number (832) 541-8360. He also has a website where you can get more information. The website can be found at http://www.dounsizlipocenter.com/. He is affiliated with 4 practices.
Conditions treated
Dr. Mark Edward Hennessy, 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. Mark E. Hennessy.
- Abdominal Pain
- Acute Pain
- Aging In Place
- Anemia
- Anxiety
- Arthritis
- Asthma
- Atherosclerosis
- Autism
- Birth Control Counseling
- Bladder Control
- Breastfeeding and Lactation
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diabetes
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Hypothyroidism
- Infant Care
- Influenza
- Inguinal Hernia
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Peptic Ulcer
- Pregnancy
- Prenatal Care
- Prescription Refill
- Thyroid Disease
- Urethritis
- Urinary Tract Infection (UTI)
- Women's Health
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Mark E. Hennessy as in-network for the following 2026 plans.
Health plans
Blue Cross and Blue Shield of Texas
Network data as of Jun 7, 2026, as reported by the insurer.
Show all 25 plans from Blue Cross and Blue Shield of Texas
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Advantage Bronze HMO℠ 204 (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Bronze HMO℠ 301 (14 plan variants) | HMO · Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Bronze HMO℠ Standard (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Gold HMO℠ 206 (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Gold HMO℠ 603 (14 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Gold HMO℠ Standard (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Bronze℠ 303 (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Bronze℠ 305 (27 plan variants) | POS · Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Bronze℠ Standard (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Gold℠ 203 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Gold℠ 803 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Gold℠ Standard (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Silver℠ 202 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Silver℠ 605 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Silver℠ Standard (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Security HMO℠ 200 (27 plan variants) | HMO · Catastrophic | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Silver HMO℠ 205 (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Silver HMO℠ 801 (14 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Silver HMO℠ Standard (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients |
| MyBlue Health Bronze℠ 402 (13 plan variants) | HMO · Expanded Bronze | Myblue Health | Accepting new patients |
| MyBlue Health Bronze℠ Standard (11 plan variants) | HMO · Expanded Bronze | Myblue Health | Accepting new patients |
| MyBlue Health Gold℠ 403 (13 plan variants) | HMO · Gold | Myblue Health | Accepting new patients |
| MyBlue Health Gold℠ Standard (11 plan variants) | HMO · Gold | Myblue Health | Accepting new patients |
| MyBlue Health Silver℠ 405 (13 plan variants) | HMO · Silver | Myblue Health | Accepting new patients |
| MyBlue Health Silver℠ Standard (11 plan variants) | HMO · Silver | Myblue Health | Accepting new patients |
Harbor Health
Network data as of Sep 14, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Harbor Health G0 $0 Deductible $0 PCP $0 Mental Health Office Visit $0 Express Care | HMO · Gold | Preferred | Accepting new patients |
| Harbor Health G1S $30 PCP $30 Mental Health Office Visit $30 Express Care | HMO · Gold | Preferred | Accepting new patients |
| Harbor Health S1 $0 PCP $0 Mental Health Office Visit $0 Express Care | HMO · Silver | Preferred | Accepting new patients |
| Harbor Health S1S $40 PCP $40 Mental Health Office Visit $40 Express Care | HMO · Silver | Preferred | Accepting new patients |
Imperial Insurance Companies, Inc.
Network data as of Sep 16, 2025, as reported by the insurer.
Show all 7 plans from Imperial Insurance Companies, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Imperial Preferred Bronze | HMO · Bronze | Preferred | Not accepting new patients |
| Imperial Preferred Gold | HMO · Gold | Preferred | Not accepting new patients |
| Imperial Preferred Gold Zero | HMO · Gold | Preferred | Not accepting new patients |
| Imperial Preferred Silver | HMO · Silver | Preferred | Not accepting new patients |
| Imperial Standard Bronze | HMO · Expanded Bronze | Standard | Not accepting new patients |
| Imperial Standard Gold | HMO · Gold | Standard | Not accepting new patients |
| Imperial Standard Silver | HMO · Silver | Standard | Not 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. Mark E. Hennessy 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. Mark E. Hennessy is enrolled to bill Medicare as a Practitioner - Family Practice (also registered under: Practitioner - Internal Medicine) .
Bills through: Doctors Express Of The Beaumont Area Pa
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.
Other ways to reach out
- Website: http://www.dounsizlipocenter.com/
Additional Specialities
- Family Physician
Affiliated practices
Questions & Answers
Does Dr. Mark Edward Hennessy have affiliation with practices?
Dr. Mark Edward Hennessy is affiliated with VOHRA Wound Physicians. For the full list of practices see this list.
Where can you meet with Dr. Mark Edward Hennessy?
Dr. Mark Edward Hennessy's office is located at 14215 South Post Oak Road in Houston, TX 77045.
What conditions does Dr. Mark Edward Hennessy treat?
Dr. Mark Edward Hennessy provides treatment for Atherosclerosis, Fever, Hiatal Hernia, Hypothyroidism, Infant Care, Obesity. For the full list see this list.
Does Dr. Mark Edward Hennessy accept insurance?
Dr. Mark Edward Hennessy is listed in-network for 36 ACA Marketplace (Obamacare/HealthCare.gov) plans from Blue Cross and Blue Shield of Texas, Harbor Health, Imperial Insurance Companies, Inc.. See the Marketplace plans section for details.