Dr. Brian O'Connor, MD



Internal Medicine     -  Maryland,  Frederick

 Overview

Dr. Brian O'Connor, MD works in Frederick, Maryland is a specialist in Internal Medicine, Hematology, Oncology and graduated Deaconess Hospital in 1984. Dr. O'Connor is affiliated with Frederick Memorial Hospital and practicing for 41 years

 Specialties

  • Internal Medicine
  • Hematology
  • Oncology

 Conditions

• Actinic Cheilitis
• Allergic Reactions to Insect Stings
• Aphasia
• Arterial Dissections With Lentiginosis
• Arterial Revascularization
• Autosomal Dominant Polycystic Kidney Disease
• Bilateral Cataracts
• Bile Duct Procedure
• Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
• Broken Nose
  ...
• Carcinoma
• Cardiomyopathy, Dilated 1P
• Cataract, Congenital, Cerulean, Type 3
• Cervical Spine Reconstruction
• Chronic Headache
• Chronic Pain Management
• Colon Disorders
• Congenital Mitral Stenosis
• Correction of Protruding Ears
• Demyelinating Disorders
• Diseases Contagious from Safe Sex
• Diverticulum of Esophagus
• Endovascular Aneurysm Repair
• Excision or Destruction of Tongue Lesion
• External Ear Disorders
• Facet Joint Nerve Ablation
• Food Allergy - Codfish
• Food Allergy - Fruit
• Food Allergy - Tree Nuts
• FotoFinder® Melanoma Detection
• Functional Movement Screening
• Gastrointestinal Surgery, Laproscopic
• Hand Neuropathy
• Herbal Agent Adverse Reaction - Echinacea
• Hypertensive Encephalopathy
• Hypnosis (Medical Hypnotherapy)
• Hyposmolality and Hyponatremia
• Imperforate Anus
• Implanon® Placement
• Infantile Psoriasis
• Infectious Arthritis
• Joint Implant
• Juvenile Macular Degeneration
• Knee Pain
• Lumbar Decompression Therapy
• Marijuana Amotivational Syndrome
• Memory Disorders
• Mental Retardation, X-Linked Recessive - Macrocephaly - Ciliary Dysfunction
• Metabolic Rate Testing
• Microscopic Ulcerative Colitis
• Minimally Invasive Resection of Mediastinal Tumor
• Mitochondrial Diseases
• Muscle Hypotonia
• Muscular Dystrophy, Congenital, Type 1C
• Neurofibromatosis, Type 2
• Non-Melanoma Skin Cancer
• Ocular Myasthenia Gravis
• Optic Ataxia
• Outpatient and inpatient dialysis supervision and management [More]
• Parathyroid Carcinoma
• Photosensitivity
• Plasmapheresis
• Pleural Friction Rub
• Pneumonia Due to Pseudomonas
• Popliteal Entrapment
• Post-Dysenteric Arthropathy
• Primary Progressive Multiple Sclerosis
• Prolactinoma
• Retinoschisis, Autosomal Dominant
• Salivary Gland Stones
• Severe Chronic Pain
• Sexual Disorders
• Shoulder Fractures
• Sigmoid Diverticulitis
• Skin Allergy
• Skin Lesion
• Sleep-Related Rhythmic Movement Disorder
• Spinal Dislocation
• Spleen Neoplasm
• Stitches
• Systemic Lupus Erythematosus (SLE)
• The provision of follow-up treatment for patients who have undergone kidney transplants
• The provision of nutritional information for patients with kidney disease
• Thoracoscopic Segmentectomy
• Tube Feeding
• Venous Thromboembolic Disease
• Vulvovaginitis
• Warts
• Wound Infection
• Wrinkles
 more details

 Procedures

• Acute Leukemia
• Adrenal Gland Cancer
• Anal and Rectal Cancer
• Anemia
• Antiphospholipid Syndrome (APS)
• Basal Cell Carcinoma
• Bile Duct Cancer
• Bladder Cancer
• Bone Marrow Biopsy
• Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
  ...
• Brain Cancer
• Breast Cancer
• Carcinoma in Situ
• Cervical Cancer
• Chronic Myeloid Leukemia (CML)
• Coagulation Disorders (incl. Hemophilia)
• Colorectal Cancer
• Deep Vein Thrombosis (DVT)
• ENT Cancer
• Esophageal Cancer
• Fallopian Tube Cancer
• Gallbladder and Biliary Tract Cancer
• Gallbladder Cancer
• Graft vs Host Disease
• Heart Tumors, Malignant
• Hematologic Abnormalities Associated With Pregnancy
• Hemophilia
• Hodgkin's Disease
• Hypercoagulable State
• Immune Thrombocytopenic Purpura (ITP)
• Lambert-Eaton Syndrome
• Laryngeal Cancer
• Leukocytosis
• Liver Cancer
• Lung Cancer
• Lymphocytosis
• Lymphoma
• Lymphoma, Large-Cell
• Lymphosarcoma
• Macroglobulinemia (incl. Waldenstrom's )
• Malignant Histiocytosis
• Mantle Cell Lymphoma
• Marginal Zone Lymphoma
• Mediastinal Tumors, Malignant
• Melanoma
• Meningiomas
• Merkel Cell Carcinoma
• Mycosis Fungoides
• Myelodysplastic Syndromes
• Myeloma
• Myeloproliferative Disorders
• Neuroendocrine Tumors
• Neutropenia
• Nodular Lymphoma
• Non-Hodgkin's Lymphoma
• Oral Cancer
• Osteosarcoma
• Ovarian Cancer
• Pancreatic Cancer
• Pancytopenia
• Paroxysmal Nocturnal Hemoglobinuria
• Peripheral T-Cell Lymphoma
• Plasmapheresis
• Pleura Cancer
• Pleural Neoplasm, Malignant
• Polycythemia Rubra Vera
• Prostate Cancer
• Qualitative Platelet Defects (incl. Glanzmann's Thrombasthenia)
• Renal (Kidney) Cancer
• Reticulosarcoma
• Salivary Gland Cancer
• Secondary Malignancies
• Sickle Cell Disease
• Skin Cancer
• Small Intestine Cancer
• Soft Tissue Sarcoma
• Squamous Cell Carcinoma
• Stomach and Small Intestine Cancer
• Stomach Cancer
• Testicular Cancer
• Thalassemia
• Thoracentesis
• Throat Cancer (Hypopharyngeal)
• Throat Cancer (Oropharyngeal)
• Thrombocytosis
• Thyroid Cancer
• Tongue Cancer
• Tonsil Cancer
• Uterine Cancer
• Vaginal Cancer
• Venous Embolism and Thrombosis
• von Willebrand Disease
• Vulvar Cancer
 more details

 Board Certifications

  • Board Certified by the American Board of Internal Medicine

 Years Since Graduation

  • 41

 State License

  • Maryland

 Education & Training

Residency Hospitals

Deaconess Hospital

Year completed: 1984 Suny Affil Hosps Buffalo, NY, USAYear completed: 1987

Fellowship Hospital

Suny Affil Hospital

Buffalo, NY, USA

Year completed: 1990

Medical School

Universidad De Santiago De Chile, Facultad De Medicina

Santiago, Chile
Graduated: 1982

 Awards

1   ACP
2   ASCO
3   ASH
4   Coll Med Chile

 Dr. O'Connor Reviews

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 Office Locations


Primary location

 Oncology Care Consultants
501 West 7th Street Suite 1A
Maryland (MD)
Frederick
21701
 Phone:(301) 662-8477

Accepting New Patients

  • Yes
* Please verify this information when scheduling an appointment.

 Map & Directions



Oncology Care Consultants, 501 West 7th Street Suite 1A, Frederick, Maryland (MD), 21701




 Insurances Accepted (check insurance plans)

  • Aetna
  • Aetna HMO
  • Amerihealth
  • Blue Card PPO
  • Blue Choice Advantage
  • Blue Choice Network POS
  • Blue Cross Blue Shield
  • Blue Preferred PPO
  • CareFirst Blue Cross Blue Shield
  • CareFirst Maryland POS
  • Choice Care PPO
  • Choice Plus POS
  • Choice Plus POS II
  • Cigna
  • Cigna HMO
  • Cigna PPO
  • Commercial Insurance Company
  • CoreSource
  • Coventry Health Care
  • Emblem Health
  • EmblemHealth
  • First Health (Coventry Health Care)
  • First Health (Coventry Health Care) PPO
  • Golden Rule
  • Great West Healthcare-Cigna PPO
  • Humana
  • Mail Handlers Benefit Plan (MHBP)
  • Maryland Physicians Care
  • MedHealthInsurance
  • Medicaid
  • Medicare
  • Medicare MCR
  • Meritain Health
  • MultiPlan
  • MVP Health Care
  • Navigate HMO
  • Navigate POS
  • One Net
  • One Net PPO
  • Open Access Plus
  • Options PPO
  • POMCO Group
  • Select
  • Southern Health PPO
  • Tricare
  • United Healthcare
  • UnitedHealthCare
  • Universal American
  • Wells Fargo Insurance

* Please verify this information when scheduling an appointment.

 Blog Posts

Blog Posts for Dr. Brian O'Connor, MD are not present.

 Patients Questions

Patients questions for Dr. Brian O'Connor, MD are not present.

 Affiliated Hospitals


Frederick Memorial Hospital photo


Frederick Memorial Hospital

400 West 7th Street Maryland MD, Frederick, 21701

Frederick Memorial Hospital is a hospital located in Frederick, MD. Procedures/Diagnosis costs are above the state average in 3 of 13 procedures. Length of Stay is at the state average in 9 of 13 procedures.



  •  Latest reviews for Internal Medicine specialists

  • Dr. C. is a pleasant, professional caring and fun doctor. Answered all my questions on a keep it simple level and explained everything. He took his time. I will refer them when needed. What a great group!
    07 February 2024
    (6)
  • He is the best if you need help with panic attacks. He fixed up my medication and I feel better.
    31 January 2024
    (40)
  • Dr. Jungblut and staff are all professional, fun, conscientious. Been going here for a long time. My children and grandchildren now see Dr. Jungblut too.
    24 January 2024
    (7)
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