Ryan S. Hsi, M.D.
Urology Physician · Orange, CA
Ryan S. Hsi, M.D. is a urology physician with a practice address in Orange, California, and NPI 1043451073, issued on Mar 22, 2009. Check the license (California A134875, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan S. Hsi
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- A134875 CA
54165 TN
Self-reported in NPPES; status is on the state search - Practice location
- PO Box 14091, Orange, CA 92863
- Phone
- (714) 456-8888
- Enumerated
- Mar 22, 2009
- Record last updated
- Oct 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20150709001211); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,524 in California → Look up another NPI →
Verify Ryan S. Hsi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134875Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average urology physician in 2024
577 Medicare Part D claims for 188 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Potassium Citrate Er80 claims
- Amoxicillin-Clavulanate Potass62 claims
- Tamsulosin Hcl58 claims
- Indapamide39 claims
- Potassium Chloride28 claims
- Trospium Chloride24 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 MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $151.60
1 payment: food and beverage; the largest payer was C. R. Bard, Inc. & Subsidiaries. The 9,340 providers of this specialty with any payment received $3,800.04 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.
2 hospitals and group practices
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospitals5 of 5 stars
- Uci Department OF UrologyOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Ryan S. Hsi among 1,524 urology physician records in California
Ryan S. Hsi, M.D. is one of 1,524 urology physician records with a practice address in California. 82% 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 64% of them.
- NPI issued2009 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2003 among the 1,049 with a school on file
- Record last updated2025 · 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 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in California
There are 1,524 urology physician records in California.
All 1,524 in California → Every provider in Orange → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Thomas Ahlering, M.D.Orange, CA 928681013983386
- David Chamberlin, MDOrange, CA 928681205861994
- Akhil Das, MDOrange, CA 928681053310821
- Bela Denes, M.D.Orange, CA 928681811943129
- Gamal M. Ghoniem, M.D.Orange, CA 928681467415919
- Feraidoun Khonsari, M.D.Orange, CA 928681487612560
- Luis Kobashi, M.D.Orange, CA 928681710963095
- David Lee, MDOrange, CA 928681730128232
Common questions
What is Ryan S. Hsi, M.D.'s NPI number?
Ryan S. Hsi, M.D.'s National Provider Identifier (NPI) is 1043451073, issued on Mar 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ryan S. Hsi, M.D. located?
The NPPES record lists a practice address at PO Box 14091, Orange, CA, 92863. Phone: (714) 456-8888. Providers update this record themselves, so call before visiting.
How can I verify Ryan S. Hsi, M.D.'s license?
NPPES lists California license number A134875, 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 Ryan S. Hsi, M.D. prescribe under Medicare Part D?
In 2024, Ryan S. Hsi, M.D. had 577 Medicare Part D claims for 188 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Ryan S. Hsi, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.1 of 100. 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.