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Edit this profileAt a glance
- 1199 Bush Street, #560, San Francisco, CA 94109
About Dr. Lam
Diana Lam, MD practices cardiovascular disease in San Francisco, CA. Diana is a 1980 graduate of University of California, San Diego School of Medicine. Diana is also listed as specializing in internal medicine. Medicare claims data shows Diana provided 201 services to 180 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, ultrasound of heart with color-depicted blood flow, rate, direction and valve function, and exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician. The provider's National Provider Identifier (NPI) is 1659455251.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (415) 664-9183
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1199 BUSH STREET #560
San Francisco, CA 94109
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Specialized cardiovascular care
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Advanced imaging
- Cardiac computed tomography
- Coronary artery calcium scan
- Transesophageal echocardiogram
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Catheter-based diagnosis and treatment
Heart & circulation
Life Support
Office and noninvasive testing
- Cardiology consultation
- Exercise stress test
- Pharmacologic cardiac stress test
- Stress echocardiogram
- Transthoracic echocardiogram
- Ambulatory blood-pressure monitoring
Structural heart
Most searched procedures
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
201 services · 180 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
45 | Less often than most peers in Cardiovascular Disease |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
32 | Less often than most peers in Cardiovascular Disease |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
32 | Less often than most peers in Cardiovascular Disease |
| Ultrasound of heart during rest, exercise and/or drug-induced stress with report | Treatment | 93350 |
13 | Less often than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
12 | Less often than most peers in Cardiovascular Disease |
| Electrocardiogram (ecg) 1 to 3 leads with review by physician | Treatment | 93040 |
11 | Less often than most peers in Cardiovascular Disease |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
56 | Less often than most peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiologists in San Francisco 8
Same specialty, same city.
Trained at University of California, San Diego School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1980 at University of California, San Diego School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Lam specialize in?
Dr. Lam is a cardiologist in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
Where is Dr. Lam located?
Dr. Lam is listed at 1199 Bush Street #560, San Francisco, CA 94109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lam's phone number?
The number on file is (415) 664-9183. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Lam?
Dr. Lam's National Provider Identifier is 1659455251. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Lam go to medical school?
Dr. Lam attended University of California, San Diego School of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lam have?
Dr. Lam has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lam do most often?
According to Medicare billing data, Dr. Lam provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and exercise or drug-induced heart stress test with electrocardiogram with review by physician, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Lam's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lam. If this is you, claiming it is free.
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