Nang Lok Ellick Tsang, M.D.
Nang Lok Ellick Tsang is an Internal Medicine specialist based in San Francisco, CA with over 42 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Nang Lok Ellick Tsang, M.D. has been part of the San Francisco medical community since 2006 in independent practice. With 42+ years of experience, he has been practicing in the San Francisco area. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and diabetes.
At a glance
- Prescribes opioids less than 36% of reporting doctors in California
- Uses generic medications more than 28% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 6894dNPPES updated 2007-07-08 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
3085 24th St Ste 203, San Francisco, CA 94110-4153
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better2.28%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-2.8 pts)
2.28% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better81.8%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
213
Unique beneficiaries
Standard volumePrescription Recipients
392
Patients prescribed
Prescriptions Written
6,109
Total claims
Total Medicare drug cost: $538k
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 Diabetes.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — 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 (+28%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+30%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+25%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+24%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-12%) — less common here
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+14%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.0k received from industry
38 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 Nang Lok Ellick Tsang's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
42 years in practice
Senior practitioner
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy: 207R00000X
Mailing address
3055 26th Ave, San Francisco, CA 94132-1545
Differs from practice location
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194025
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Nang Lok Ellick Tsang
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Nang Lok Ellick Tsang for blood pressure monitoring, cholesterol management, diabetes check-ins — 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 Nang Lok Ellick Tsang
Dr. Tsang 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) 648-5900.
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 Nang Lok Ellick Tsang
Practice Location
3085 24th St Ste 203, San Francisco, CA 94110-4153
Mailing Address
3055 26th Ave, San Francisco, CA 94132-1545
This is a provider directory. Contact the office directly to schedule appointments.
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