NPPES file of Aug 9, 2026

Chi-Yuan Hsu, MD

Nephrology Physician · San Francisco, CA

Chi-Yuan Hsu, MD is a nephrology physician with a practice address in San Francisco, California, and NPI 1578528295, issued on Apr 18, 2006. Check the license (California G85235, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578528295
Name
Chi-Yuan Hsu
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
G85235 CA
Self-reported in NPPES; status is on the state search
Practice location
513 Parnassus Avenue, Hse 672, Box 0532, Ucsf Nephrolog, San Francisco, CA 94143
Phone
(415) 476-2172
Enumerated
Apr 18, 2006
Record last updated
Sep 17, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(415) 476-3381
Medicaid ID
0G8523500 CA
Medicare enrollment
Enrolled (PECOS I20080510000126); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 1993
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Chi-Yuan Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G85235
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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72% fewer Medicare Part D claims than the average nephrology physician in 2024

412 Medicare Part D claims for 41 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Chi-Yuan Hsu412
  2. Specialty average1,465

Most prescribed

  1. Chlorthalidone31 claims
  2. Farxiga25 claims
  3. Amlodipine Besylate24 claims
  4. Atorvastatin Calcium21 claims
  5. Jardiance21 claims
  6. Valsartan21 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): 74.5 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.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. Regents OF The University OF CaliforniaSan Francisco, CA
  2. Ucsf Medical Group Business ServicesSan Francisco, CA
  3. University OF California San FranciscoSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Chi-Yuan Hsu among 1,468 nephrology physician records in California

Chi-Yuan Hsu, MD is one of 1,468 nephrology physician records with a practice address in California. 88% 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, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1993 · median 2001 among the 1,128 with a school on file
  • Record last updated2019 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Amarpali Brar, M.DSan Francisco, CA 941431104001718
  2. Teresa Chen, M.D.San Francisco, CA 941431336352558
  3. Kerry Cho, M.D.San Francisco, CA 941431861434318
  4. Cynthia Delgado, M.D.San Francisco, CA 941431821289323
  5. Denis Glenn, MDSan Francisco, CA 941431053492199
  6. Raymond Hsu, M.D.San Francisco, CA 941431124139167
  7. Steven Kim, MDSan Francisco, CA 941431962677294
  8. Brian Lee, M.D.San Francisco, CA 941431518056571

Common questions

What is Chi-Yuan Hsu, MD's NPI number?

Chi-Yuan Hsu, MD's National Provider Identifier (NPI) is 1578528295, issued on Apr 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chi-Yuan Hsu, MD located?

The NPPES record lists a practice address at 513 Parnassus Avenue, Hse 672, Box 0532, Ucsf Nephrolog, San Francisco, CA, 94143. Phone: (415) 476-2172. Providers update this record themselves, so call before visiting.

How can I verify Chi-Yuan Hsu, MD's license?

NPPES lists California license number G85235, 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 Chi-Yuan Hsu, MD prescribe under Medicare Part D?

In 2024, Chi-Yuan Hsu, MD had 412 Medicare Part D claims for 41 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Chi-Yuan Hsu, MD's MIPS final score?

The 2023 MIPS final score is 74.5 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.