Dr. Brian J. McGuinness
- Gender: Male
- Experience: 26 years
- Graduated from: Tulane University School Of Medicine
- Graduation year: 1995
- Sole propriator: No
- NPI: 1891870770
Dr. Brian J. McGuinness M.D.
Colorectal Surgeon
He is located at 365 Lennon Lane Ste. 290 in Walnut Creek, CA 94598. Can help patients with the following: Diverticulosis, Edema, Gastroesophageal Reflux Disease (GERD), Hyponatremia, Pancreatitis, Prescription Refill. His National Provider Identifier (NPI) number is 1891870770. Appointment can be made via the phone number (925) 274-9000. He is affiliated with 4 practices and 2 hospitals.
Conditions treated
Dr. Brian Joseph Mcguinness, being an colorectal surgeon, 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. Brian J. McGuinness.
- Abdominal Pain
- Achalasia
- Acute Pain
- Anal Fissure
- Anemia
- Appendicitis
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Boils
- Cancer
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Colon Cancer
- Common Cold
- Constipation
- Crohn's Disease
- Cyst
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Enlarged Spleen
- Esophageal Cancer
- Fever
- Gallstones
- Gangrene
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hemorrhoids
- Hernia
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Lymphedema
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreatitis
- Peptic Ulcer
- Pilonidal Cyst
- Prescription Refill
- Sebaceous Cyst
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Brian J. McGuinness
Medicare Enrollment
Dr. Brian J. McGuinness is enrolled to bill Medicare as a Practitioner - Colorectal Surgery (proctology) (also registered under: Practitioner - Critical Care (intensivists)) .
Bills through: John Muir Trauma Physicians Billing Service
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Ethicon Us | $1103 |
| Intuitive Surgical | $376 |
| Olympus | $242 |
Other
| Food and Beverage | $1321 |
| Consulting | $500 |
| Travel and Lodging | $283 |
Studies
TULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1995Additional Specialities
- Internist
- Surgeon
Affiliated practices
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Questions & Answers
Does Dr. Brian Joseph Mcguinness have affiliation with practices?
Dr. Brian Joseph Mcguinness is affiliated with John Muir Medical Center. For the full list of practices see this list.
What conditions does Dr. Brian Joseph Mcguinness treat?
Dr. Brian Joseph Mcguinness provides treatment for Diverticulosis, Edema, Gastroesophageal Reflux Disease (GERD), Hyponatremia, Pancreatitis, Prescription Refill. For the full list see this list.
Has Dr. Brian Joseph Mcguinness affiliation with hospitals?
Dr. Brian Joseph Mcguinness is affiliated with JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS. For the full list of hospitals see this list.
Where can you meet with Dr. Brian Joseph Mcguinness?
Dr. Brian Joseph Mcguinness's office is located at 365 Lennon Lane Ste. 290 in Walnut Creek, CA 94598.