Mark M Moasser, M.D.
Medical Oncology Internal Medicine
Mark M Moasser is a Medical Oncology Internal Medicine specialist based in San Francisco, CA with over 38 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: HEMATOLOGY/ONCOLOGY, INTERNAL MEDICINE
Mark M Moasser, M.D. has been part of the San Francisco medical community since 2006 in group practice. A Tufts University School of Medicine graduate since 1988, he brings 38+ years of experience. CMS Medicare data shows his patients commonly have cancer, high cholesterol, and arthritis.
Older · 6510dNPPES updated 2008-07-29 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
1600 Divisadero St 2nd Floor, Box 1710, San Francisco, CA 94115-3010
How Does This Doctor Compare?
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 = better79.9%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-2.9 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
70
Unique beneficiaries
Standard volumePrescription Recipients
63
Patients prescribed
Prescriptions Written
314
Total claims
Total Medicare drug cost: $1.00M
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 Cancer, High Cholesterol, and Arthritis.
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+54%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-17%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-3%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-26%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+5%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1988
Tufts University School of Medicine
38 years in practice
Senior practitioner
Medical oncologists diagnose and treat cancer using chemotherapy, immunotherapy, targeted therapy, and hormone therapy. They coordinate care with surgical oncologists and radiation oncologists for comprehensive cancer treatment.
Taxonomy: 207RX0202X
Education & Training
Tufts University School of Medicine (Class of 1988)
Mailing address
1635 Divisadero St. Ste. 625, Box 1821, San Francisco, CA 94143-0001
Differs from practice location
Primary hospital affiliation: Acute Care - Veterans Administration
CMS Certification Number: 20003F
View hospital on Medicare Care CompareVirtual Medical Oncology Care With Mark M Moasser
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark M Moasser for follow-up consultations, cholesterol management, arthritis follow-ups — 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 Mark M Moasser
Dr. Moasser is listed as active in the NPI registry with telehealth listed in San Francisco, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (415) 353-7070.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Mark M Moasser
Practice Location
1600 Divisadero St 2nd Floor, Box 1710, San Francisco, CA 94115-3010
Mailing Address
1635 Divisadero St. Ste. 625, Box 1821, San Francisco, CA 94143-0001
This is a provider directory. Contact the office directly to schedule appointments.
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