Diana Lam, MD
Cardiovascular Disease Physician · San Francisco, CA
Diana Lam, MD is a cardiovascular disease physician with a practice address in San Francisco, California, and NPI 1659455251, issued on Oct 24, 2006. Check the license (California G45411, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diana Lam
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G45411 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1199 Bush Street, San Francisco, CA 94109
- Phone
- (415) 664-9183
- Enumerated
- Oct 24, 2006
- Record last updated
- Feb 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (415) 929-8138
- Medicaid ID
- 00G454111 CA
- Medicare enrollment
- Enrolled (PECOS I20081106000159); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 1199 Bush Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Diana Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G45411Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
913 Medicare Part D claims for 138 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Succinate155 claims
- Atorvastatin Calcium77 claims
- Jardiance75 claims
- Entresto49 claims
- Losartan Potassium45 claims
- Amlodipine Besylate40 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 99 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Chinese Hospital AssociationSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Lam among 2,574 cardiovascular disease physician records in California
Diana Lam, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1980 · median 1999 among the 1,742 with a school on file
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in San Francisco → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Michel Accad, M.D.San Francisco, CA 941091649389768
- Steven Blumlein, MDSan Francisco, CA 941091568473361
- Russell Ching, M.D.San Francisco, CA 941091477504330
- Mi Young ChoSan Francisco, CA 941091831953983
- Sung Choi, M.D.San Francisco, CA 941091013917046
- Allison Kratka, MDSan Francisco, CA 941091386134591
- Chun Yu Lee, M.D.San Francisco, CA 941091972860104
- Kevin Li, MDSan Francisco, CA 941091912427063
Common questions
What is Diana Lam, MD's NPI number?
Diana Lam, MD's National Provider Identifier (NPI) is 1659455251, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diana Lam, MD located?
The NPPES record lists a practice address at 1199 Bush Street, San Francisco, CA, 94109. Phone: (415) 664-9183. Providers update this record themselves, so call before visiting.
How can I verify Diana Lam, MD's license?
NPPES lists California license number G45411, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diana Lam, MD prescribe under Medicare Part D?
In 2024, Diana Lam, MD had 913 Medicare Part D claims for 138 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Diana Lam, MD's MIPS final score?
The 2023 MIPS final score is 99 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.