Ian Stewart Harris, M.D.
Adult Congenital Heart Disease
Ian Stewart Harris is an Adult Congenital Heart Disease specialist based in San Francisco, CA with over 27 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
Ian Stewart Harris, M.D. has been part of the San Francisco medical community since 2007 in group practice. Trained at University of California, San Francisco School of Medicine (class of 1999), he has been practicing for over 27 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and afib.
At a glance
- Uses generic medications more than 62% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 2650dNPPES updated 2019-02-22 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
505 Parnassus Ave Ucsf-Campus Box 0124, San Francisco, CA 94143-0124
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
MIPS Score
202374.47/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-9.1 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better89.5%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+6.7 pts)
Typical range among reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
122
Unique beneficiaries
Standard volumePrescription Recipients
47
Patients prescribed
Prescriptions Written
191
Total claims
Total Medicare drug cost: $33k
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 Hypertension, High Cholesterol, and Atrial Fibrillation.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-5%) — less common here
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-17%) — less common here
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ 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 (-20%) — less common here
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+6%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-8%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-7%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-8%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$29 received from industry
1 transaction reported in 2018 ·Low 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 2018, attributed to Ian Stewart Harris's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1999
University of California, San Francisco School of Medicine
27 years in practice
Experienced
A physician who specializes in the care and treatment of adults with congenital heart disease. Adult congenital heart disease (ACHD) physicians are trained to understand the complexities of congenital heart disease, anatomy, physiology, surgical repairs, and long-term complications and use that to manage ACHD with acquired heart disease, including heart failure, arrhythmias, and pulmonary hypertension.
Taxonomy: 207RA0002X
Education & Training
University of California, San Francisco School of Medicine (Class of 1999)
Mailing address
2001 Mcallister St Apartment B-323, San Francisco, CA 94118-4436
Differs from practice location
Primary hospital affiliation: Critical Access Hospitals
CMS Certification Number: 191322
View hospital on Medicare Care CompareVirtual Adult Congenital Heart Disease Care With Ian Stewart Harris
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Ian Stewart Harris for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to San Francisco 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 Ian Stewart Harris
NPI records show Dr. Harris as active with telehealth listed in San Francisco, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (415) 476-1326.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact Ian Stewart Harris
Practice Location
505 Parnassus Ave Ucsf-Campus Box 0124, San Francisco, CA 94143-0124
Mailing Address
2001 Mcallister St Apartment B-323, San Francisco, CA 94118-4436
This is a provider directory. Contact the office directly to schedule appointments.
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