Leslie Hsu Fung, MD
Obstetrics & Gynecology Physician · Yorba Linda, CA
Leslie Hsu Fung, MD is an obstetrics & gynecology physician with a practice address in Yorba Linda, California, and NPI 1811137052, issued on Feb 28, 2009. Check the license (California A107849, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leslie Hsu Fung
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A107849 CA
Self-reported in NPPES; status is on the state search - Practice location
- 22550 Savi Ranch Pkwy, Yorba Linda, CA 92887
- Phone
- (562) 331-5685
- Enumerated
- Feb 28, 2009
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111102000230); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 22550 Savi Ranch Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cecilia Chang, M.D.Pediatrics Physician1780708164
- Sherry GomezRegistered Nurse1205592771
- Zainab Hasan, M.D.Family Medicine Physician1528407814
- Anne HookPharmacist1720526684
- Yoonjung Jang, D.O.Family Medicine Physician1447544614
Verify Leslie Hsu Fung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A107849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
151 Medicare Part D claims for 71 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Estradiol58 claims
- Estring21 claims
- Clobetasol Propionate17 claims
- Climara11 claims
- Triamcinolone Acetonide11 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupPanorama City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leslie Hsu Fung among 5,088 obstetrics & gynecology physician records in California
Leslie Hsu Fung, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.
- NPI issued2009 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2007 · median 2004 among the 2,700 with a school on file
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Yorba Linda → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Vivian Lin, MDYorba Linda, CA 928861477750479
- Gamage Nanayakkara, MDCorona, CA 928831497836464
- Katrina Stinson, M.D.Temescal Valley, CA 928831881957686
- Kimberly Tustison, MDCorona, CA 928831063731297
- Jennifer Vong, DOCorona, CA 928831952669715
- Thomas Cachur, D.O.Corona, CA 928821225037047
- Choon Koo, MDCorena, CA 928821457345894
- Mohamedali Ismailjee, M.D.Eastvale, CA 928801952594715
Common questions
What is Leslie Hsu Fung, MD's NPI number?
Leslie Hsu Fung, MD's National Provider Identifier (NPI) is 1811137052, issued on Feb 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Leslie Hsu Fung, MD located?
The NPPES record lists a practice address at 22550 Savi Ranch Pkwy, Yorba Linda, CA, 92887. Phone: (562) 331-5685. Providers update this record themselves, so call before visiting.
How can I verify Leslie Hsu Fung, MD's license?
NPPES lists California license number A107849, 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 Leslie Hsu Fung, MD prescribe under Medicare Part D?
In 2024, Leslie Hsu Fung, MD had 151 Medicare Part D claims for 71 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.