Dr. Gregory A. Masters
- Gender: Male
- Experience: 31 years
- Graduated from: Northwestern University Feinberg Medical School
- Graduation year: 1990
- Sole propriator: No
- NPI: 1508834680
Dr. Gregory A. Masters MD
Oncologist
He is located at 4701 Ogletown Stanton Road Suite 2200 in Newark, DE 19713. Can help patients with the following: Edema, Esophageal Cancer, Liver Cancer, Neuroblastoma, Retinoblastoma, Thyroid Cancer. His National Provider Identifier (NPI) number is 1508834680. Appointment can be made via the phone number (302) 366-1200. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Gregory A. Masters, being an oncologist, 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. Gregory A. Masters.
- Abdominal Pain
- Acute Pain
- Anal Cancer
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Basal Cell Carcinoma
- Bile Duct Cancer
- Bladder Cancer
- Bladder Control
- Bone Cancer
- Brain Cancer
- Breast Cancer
- Cancer
- Carcinoid Tumor
- Carcinoma
- Cervical Cancer
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Colon Cancer
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Esophageal Cancer
- Fever
- Gallbladder Cancer
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Glioma
- Head and Neck Cancer
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hodgkin's Disease
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Larynx Cancer
- Leukemia
- Liver Cancer
- Lung Cancer
- Melanoma
- Mesothelioma
- Migraine
- Nasopharyngeal Cancer
- Nausea and Vomiting
- Neoplasm
- Neuroblastoma
- Non-Hodgkin's Lymphoma (NHL)
- Obesity
- Oral Cancer
- Osteoporosis
- Ovarian Cancer
- Pancreatic Cancer
- Penis Cancer
- Peptic Ulcer
- Pheochromocytoma (PCC)
- Polycythemia
- Prescription Refill
- Prostate Cancer
- Retinoblastoma
- Salivary Gland Cancer
- Sarcoma
- Skin Cancer
- Stomach Cancer
- Testicular Cancer
- Thymoma
- Thyroid Cancer
- Urethral Cancer
- Urethritis
- Urinary Tract Infection (UTI)
- Uterine Cancer
- Vaginal Cancer
Procedures Performed by Dr. Gregory A. Masters
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Gregory A. Masters as in-network for the following 2026 plans.
Health plans
Ambetter Health of Delaware
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 17 plans from Ambetter Health of Delaware
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Clear Gold | EPO · Gold | Preferred | Accepting new patients |
| Clear Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Elite Silver | EPO · Silver | Preferred | Accepting new patients |
| Elite Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Principal Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Principal Bronze HSA + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | 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 |
AmeriHealth Caritas Next
Network data as of Sep 11, 2026, as reported by the insurer.
Show all 8 plans from AmeriHealth Caritas Next
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| AmeriHealth Caritas Next Bronze Essential + No Referrals | HMO · Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Premier + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Signature + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Premier + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Signature + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Essential + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Premier + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Signature + No Referrals | HMO · Silver | Preferred | Accepting new patients |
Highmark Blue Cross Blue Shield Delaware
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 15 plans from Highmark Blue Cross Blue Shield Delaware
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| my Blue Access Major Events Select PPO Catastrophic 10600 - 3 Free PCP Visits | PPO · Catastrophic | In Network | Accepting new patients |
| my Blue Access Select PPO Bronze 3800 | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Bronze 3800 + Adult Dental and Vision | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Bronze 9200 | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Gold 0 | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Gold 0 + Adult Dental and Vision | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Gold 1700 HSA | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Premier Gold 0 + Adult Dental and Vision | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Premier Platinum 0 + Adult Dental and Vision | PPO · Platinum | In Network | Accepting new patients |
| my Blue Access Select PPO Premier Silver 0 + Adult Dental and Vision | PPO · Silver | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Bronze 7500 | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Gold 2000 | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Gold 2000 + Adult Dental and Vision | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Platinum 0 | PPO · Platinum | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Silver 6000 | PPO · Silver | In Network | 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. Gregory A. Masters 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. Gregory A. Masters is enrolled to bill Medicare as a Practitioner - Medical Oncology .
Bills through: Medical Oncology Hematology Consultants 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.
Payments received
Drug payment
| Pfizer | $100 |
| Genzyme | $97 |
| Janssen | $47 |
Other
| Food and Beverage | $231 |
| Promotional Speaking or Service | $100 |
Studies
NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated in 1990Additional Specialities
- Internist
Looking for more Oncologists?
There are 6 other oncologists in this region.
- Gender: Male
- Address: Suite 2200 4701 Ogletown Stanton Road Newark, 19713, DE
- Gender: Male
- Address: Suite 2400 4701 Ogletown Stanton Road Newark, 19713, DE
- Gender: Male
- Address: Suite 2200 4701 Ogletown Stanton Road Newark, 19713, DE
- Gender: Male
- Address: Suite 2400 4701 Ogletown Stanton Road Newark, 19713, DE
- Gender: Female
- Address: 2 Cooper Plaza Camden, 8103, NJ
Questions & Answers
Does Dr. Gregory A. Masters have affiliation with practices?
Dr. Gregory A. Masters is affiliated with Medical Oncology Hematology Consultants PA.
What conditions does Dr. Gregory A. Masters treat?
Dr. Gregory A. Masters provides treatment for Edema, Esophageal Cancer, Liver Cancer, Neuroblastoma, Retinoblastoma, Thyroid Cancer. For the full list see this list.
Where can you meet with Dr. Gregory A. Masters?
Dr. Gregory A. Masters's office is located at 4701 Ogletown Stanton Road Suite 2200 in Newark, DE 19713.
Has Dr. Gregory A. Masters affiliation with hospitals?
Dr. Gregory A. Masters is affiliated with CHRISTIANA HOSPITAL.
Does Dr. Gregory A. Masters accept patients with Highmark Blue Cross Blue Shield Delaware?
Yes, Dr. Gregory A. Masters is listed in-network for Highmark Blue Cross Blue Shield Delaware through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.