Dr. Mark H. Gregory
- Gender: Male
- Experience: 35 years
- Graduated from: University Of Vermont College Of Medicine
- Graduation year: 1986
- Sole propriator: No
- NPI: 1104843663
Dr. Mark H. Gregory MD
Internist
He is located at 555 North New Ballas Road Suite 110 in Saint Louis, MO 63141. Can help patients with the following: Asthma, Atherosclerosis, Edema, Hiatal Hernia, Hot Flashes, Migraine. His National Provider Identifier (NPI) number is 1104843663. Appointment can be made via the phone number (314) 872-8470. He also has a website where you can get more information. The website can be found at https://www.mdvip.com/doctors/markgregorymd?st-t=caredash_paid_. He is affiliated with 3 practices and 3 hospitals.
Conditions treated
Dr. Mark H. Gregory, 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 H. Gregory.
- 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. Mark H. Gregory
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Mark H. Gregory as in-network for the following 2026 plans.
Health plans
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 $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | EPO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard+ (Dental + Vision, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard+ (Dental + Vision, No Referrals) | EPO · 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. Mark H. Gregory 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 H. Gregory is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - General Practice) .
Bills through: Mark H Gregory Md 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.
Payments received
Drug payment
| Boston Scientific | $2568 |
| AstraZeneca | $1684 |
| Janssen | $793 |
Other
| Food and Beverage | $8277 |
| Travel and Lodging | $1870 |
Studies
UNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated in 1986Other ways to reach out
- Website: https://www.mdvip.com/doctors/markgregorymd?st-t=caredash_paid_
- Facebook: http://www.facebook.com/MarkGregoryMD
Additional Specialities
- Preventive Medicine Specialist
Affiliated hospitals
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- Address: 621 South New Ballas Road Suite 6017B Saint Louis, 63141, MO
- Gender: Female
- Address: 12647 Olive Boulevard Suite 600 Saint Louis, 63141, MO
- Gender: Male
- Address: Suite 240 522 North New Ballas Road Saint Louis, 63141, MO
Questions & Answers
Where can you meet with Dr. Mark H. Gregory?
Dr. Mark H. Gregory's office is located at 555 North New Ballas Road Suite 110 in Saint Louis, MO 63141.
Has Dr. Mark H. Gregory affiliation with hospitals?
Dr. Mark H. Gregory is affiliated with CENTRAL DUPAGE HOSPITAL. For the full list of hospitals see this list.
What conditions does Dr. Mark H. Gregory treat?
Dr. Mark H. Gregory provides treatment for Asthma, Atherosclerosis, Edema, Hiatal Hernia, Hot Flashes, Migraine. For the full list see this list.
Does Dr. Mark H. Gregory have affiliation with practices?
Dr. Mark H. Gregory is affiliated with MDVIP. For the full list of practices see this list.
Does Dr. Mark H. Gregory accept patients with UnitedHealthcare?
Yes, Dr. Mark H. Gregory is listed in-network for UnitedHealthcare through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.