Robert A Mecum, M.D.
Gastroenterology Internal Medicine
Robert A Mecum is a Gastroenterology Internal Medicine specialist based in Whittier, CA with over 34 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Patients across CA can see Robert a Mecum, M.D. in person in Whittier or via virtual visit — no travel required. A University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) graduate since 1992, he brings 34+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and diabetes.
Older · 3621dNPPES updated 2016-08-09 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
12291 Washington Blvd Ste 304, Whittier, CA 90606-2551
How Does This Doctor Compare?
Generic Rx
↑ Higher = better65.5%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-17.3 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
196
Unique beneficiaries
Standard volumePrescription Recipients
469
Patients prescribed
Prescriptions Written
736
Total claims
Total Medicare drug cost: $133k
Percentile rankings compared against 9,360 reporting peers in California.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
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 Diabetes.
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%↑ More patients than average (+3%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+10%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-16%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-7%) — 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
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.8k received from industry
52 transactions reported in 2024 ·Moderate tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Robert a Mecum's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1992
University of Illinois College of Medicine
34 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 Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (Class of 1992)
Mailing address
1605 Euston Rd, San Marino, CA 91108-1917
Differs from practice location
Virtual Internal Medicine Care With Robert a Mecum
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Robert a Mecum for cholesterol management, blood pressure monitoring, diabetes check-ins — no travel to Whittier required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Robert a Mecum
NPI records show Dr. Mecum as active with telehealth listed in Whittier, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (562) 789-5577.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Robert a Mecum
Practice Location
12291 Washington Blvd Ste 304, Whittier, CA 90606-2551
Mailing Address
1605 Euston Rd, San Marino, CA 91108-1917
This is a provider directory. Contact the office directly to schedule appointments.
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