Charles Yen Chiu, M.D., PH.D.
Infectious Disease Physician · San Francisco, CA
Charles Yen Chiu, M.D., PH.D. is an infectious disease physician with a practice address in San Francisco, California, and NPI 1598797268, issued on Jul 6, 2006. Check the license (California A81538, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Yen Chiu
- Credential
- M.D., PH.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- A81538 CA
A81358 CA
Self-reported in NPPES; status is on the state search - Practice location
- 185 Berry St Ste 180A, San Francisco, CA 94107
- Phone
- (415) 514-8219
- Enumerated
- Jul 6, 2006
- Record last updated
- Mar 23, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (415) 889-6441
- Medicare enrollment
- Enrolled (PECOS I20040720000512); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Verify Charles Yen Chiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A81538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $53.66
1 payment: food and beverage; the largest payer was Abbott Laboratories. 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 one group practice
- 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).
Charles Yen Chiu among 1,119 infectious disease physician records in California
Charles Yen Chiu, M.D., PH.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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2003 among the 735 with a school on file
- Record last updated2017 · 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
- Helen Gunthorpe, M.D.San Francisco, CA 941091588760565
- Layli Jamali, M.D.San Francisco, CA 941091598059644
- Saman Kannangara, MDSan Francisco, CA 941091508893421
- Gifford Leoung, M.D.San Francisco, CA 941091295782225
- Jennifer Ling, M.D.San Francisco, CA 941091558685826
- Jack McGregor, MDSan Francisco, CA 941091053949974
- Henry Chambers III, MDSan Francisco, CA 941101184715773
- Moupali Das, MDSan Francisco, CA 941101801914270
Common questions
What is Charles Yen Chiu, M.D., PH.D.'s NPI number?
Charles Yen Chiu, M.D., PH.D.'s National Provider Identifier (NPI) is 1598797268, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles Yen Chiu, M.D., PH.D. located?
The NPPES record lists a practice address at 185 Berry St Ste 180A, San Francisco, CA, 94107. Phone: (415) 514-8219. Providers update this record themselves, so call before visiting.
How can I verify Charles Yen Chiu, M.D., PH.D.'s license?
NPPES lists California license number A81538, 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.
What is Charles Yen Chiu, M.D., PH.D.'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.