Quynh-Lan Dao, MD
Internal Medicine Physician · San Francisco, CA
Quynh-Lan Dao, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1841813029, issued on May 22, 2020. Check the license (California A202413, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Quynh-Lan Dao
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A202413 CA
MD19220 RI
Self-reported in NPPES; status is on the state search - Practice location
- 45 Castro St, San Francisco, CA 94114
- Phone
- (415) 600-6000
- Enumerated
- May 22, 2020
- Record last updated
- Jul 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20230808000929); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 45 Castro St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Quynh-Lan Dao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A202413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
100 Medicare Part D claims for 52 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 2 group practices
- Lifespan Physician Group IncProvidence, RI
- Pacific Inpatient Medical GroupSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Quynh-Lan Dao among 17,696 internal medicine physician records in California
Quynh-Lan Dao, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
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Common questions
What is Quynh-Lan Dao, MD's NPI number?
Quynh-Lan Dao, MD's National Provider Identifier (NPI) is 1841813029, issued on May 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Quynh-Lan Dao, MD located?
The NPPES record lists a practice address at 45 Castro St, San Francisco, CA, 94114. Phone: (415) 600-6000. Providers update this record themselves, so call before visiting.
How can I verify Quynh-Lan Dao, MD's license?
NPPES lists California license number A202413, 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 Quynh-Lan Dao, MD prescribe under Medicare Part D?
In 2024, Quynh-Lan Dao, MD had 100 Medicare Part D claims for 52 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.