Qi Quan Leong, M.D.
Infectious Disease Physician · San Francisco, CA
Qi Quan Leong, M.D. is an infectious disease physician with a practice address in San Francisco, California, and NPI 1457761082, issued on May 5, 2014. Check the license (California A184705, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Qi Quan Leong
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- A184705 CA
MD466499 PA
Self-reported in NPPES; status is on the state search - Practice location
- 2250 Hayes St Ste 302, San Francisco, CA 94117
- Phone
- (415) 379-2900
- Enumerated
- May 5, 2014
- Record last updated
- Sep 8, 2023
- Fax
- (415) 666-3144
- Medicare enrollment
- Enrolled (PECOS I20230404002726); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 2250 Hayes St Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Qi Quan Leong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A184705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average infectious disease physician in 2024
165 Medicare Part D claims for 31 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Biktarvy27 claims
- Dovato22 claims
- Odefsey13 claims
- Sulfamethoxazole-Trimethoprim13 claims
- Doxycycline Hyclate12 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.
Industry payments in 2024: $197.69
4 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- Ucsf Medical Group Business ServicesSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Qi Quan Leong among 1,119 infectious disease physician records in California
Qi Quan Leong, M.D. is one of 1,119 infectious disease 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 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2003 among the 735 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in San Francisco → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Donna Defreitas, M.D.San Francisco, CA 941171457331498
- Jose Eguia, MDSan Francisco, CA 941171972565307
- Shereen Katrak, MDSan Francisco, CA 941171821315243
- Vanessa Wormser, DOSan Francisco, CA 941171023514700
- Stephen Cohen, MDSan Francisco, CA 941161003241878
- David Busch, M.D.San Francisco, CA 941151942343975
- Andrew FaulkSan Francisco, CA 941151598224222
- Shelley Gordon, M.D.San Francisco, CA 941151841334521
Common questions
What is Qi Quan Leong, M.D.'s NPI number?
Qi Quan Leong, M.D.'s National Provider Identifier (NPI) is 1457761082, issued on May 5, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Qi Quan Leong, M.D. located?
The NPPES record lists a practice address at 2250 Hayes St Ste 302, San Francisco, CA, 94117. Phone: (415) 379-2900. Providers update this record themselves, so call before visiting.
How can I verify Qi Quan Leong, M.D.'s license?
NPPES lists California license number A184705, 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 Qi Quan Leong, M.D. prescribe under Medicare Part D?
In 2024, Qi Quan Leong, M.D. had 165 Medicare Part D claims for 31 beneficiaries; the average among infectious disease physician prescribers was 689. 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.