Doctor profile · Federal record
Dr. Diana Lam, MD
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · San Francisco, CA
- NPI 1659455251
- Accepts Medicare
- MIPS 94.0 / 100 · 2023
- 46 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1199 Bush Street, #560
San Francisco, CA 94109
(415) 664-9183
fax (415) 929-8138
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 9, 2010
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- California #G45411
- Medicaid
- CA #00G454111
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659455251. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
546
Distinct HCPCS
10
Medicare allowed
$47,205
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 125 | 76 | $151 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 84 | 84 | $77 | |
93016 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 58 | 57 | $24 | |
93018 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 58 | 57 | $16 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 56 | 50 | $17 | |
93040 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician | 46 | 42 | $15 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 30 | 28 | $211 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 29 | 22 | $107 | |
93350 |
Ultrasound of heart during rest, exercise and/or drug-induced stress with report | 25 | 24 | $77 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 22 | 22 | $255 |
In context: peer comparison
Among 37 peers in San Francisco Cardiovascular Disease Physician, average services per provider: 79. This provider delivers 6.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
958
Patients
288
Total drug cost
$288,416
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 223 | 66 | $5,706 |
| Atorvastatin Calcium | Generic | 122 | 34 | $1,400 |
| Losartan Potassium | Generic | 62 | 20 | $1,128 |
| Eliquis (Apixaban) | Brand | 61 | 18 | $81,714 |
| Famotidine | Generic | 59 | 17 | $842 |
| Jardiance (Empagliflozin) | Brand | 58 | 17 | $77,282 |
| Amlodipine Besylate | Generic | 57 | 19 | $782 |
| Xarelto (Rivaroxaban) | Brand | 50 | 14 | $75,576 |
| Lisinopril | Generic | 47 | 13 | $576 |
| Furosemide | Generic | 46 | 16 | $333 |
Frequently asked questions
What is Dr. Diana Lam's medical specialty?
Dr. Diana Lam practices Cardiovascular Disease Physician in San Francisco, CA.
Where does Dr. Diana Lam practice?
Dr. Diana Lam practices at 1199 Bush Street, San Francisco, CA 94109. Office phone: 4156649183.
What is Dr. Diana Lam's NPI?
Dr. Diana Lam's National Provider Identifier (NPI) is 1659455251, issued by NPPES.
Does Dr. Diana Lam accept Medicare assignment?
Yes. Dr. Diana Lam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Lam commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (HCPCS 93016). Source: CMS Medicare Physician & Other Practitioners file.