Barbara J Maccollum, M.D.
Gastroenterology Internal Medicine
Barbara J Maccollum is a Gastroenterology Internal Medicine specialist based in Phoenix, AZ with over 42 years of clinical experience. Offers virtual telehealth visits.
With over 42 years in internal medicine, Barbara J Maccollum, M.D. is a long-established gastroenterologist in Phoenix. She graduated from University of Arizona College of Medicine in 1984 and has 42+ years of clinical experience. She regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
Older · 3383dNPPES updated 2017-02-17 · verify NPI on CMS · Verify license at Arizona Medical Board
Contact & Location
Practice Location
1300 N 12th St Suite 613, Phoenix, AZ 85006-2848
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-12%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+5%) — a focus area for this doctor
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+6%) — a focus area for this doctor
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-11%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-11%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
Patient Reviews
No patient reviews yet. If you've seen Barbara J Maccollum, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1984
University of Arizona College of Medicine
42 years in practice
Senior practitioner
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
University of Arizona College of Medicine (Class of 1984)
Mailing address
3020 E Camelback Rd Suite 301, Phoenix, AZ 85016-5059
Differs from practice location
Virtual Internal Medicine Care With Barbara J Maccollum
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Barbara J Maccollum for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Phoenix required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Barbara J Maccollum
Dr. Maccollum is listed as active in the NPI registry with telehealth listed in Phoenix, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (602) 254-5321.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Barbara J Maccollum
Practice Location
1300 N 12th St Suite 613, Phoenix, AZ 85006-2848
Mailing Address
3020 E Camelback Rd Suite 301, Phoenix, AZ 85016-5059
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers
Gastroenterology Internal Medicine in AZ
See allAlan J. Sheinbaum, MD
Phoenix, AZ
Laurence J Miller, M.D.
Scottsdale, AZ
Jay Robert Mellen, M.D.
Scottsdale, AZ