Lily Hsin-Chun Sung, MD
Rheumatology Physician · Stanford, CA
Lily Hsin-Chun Sung, MD is a rheumatology physician with a practice address in Stanford, California, and NPI 1144780370, issued on Mar 22, 2019. Check the license (California A194353, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lily Hsin-Chun Sung
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- A194353 CA
4301506343 MI
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Mar 22, 2019
- Record last updated
- Jul 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20260609004077); may accept Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 2019
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
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Verify Lily Hsin-Chun Sung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A194353Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average rheumatology physician in 2024
15 Medicare Part D claims for 11 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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.
Lily Hsin-Chun Sung among 926 rheumatology physician records in California
Lily Hsin-Chun Sung, MD is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 93% of them.
- NPI issued2019 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2019 · median 2003 among the 641 with a school on file
- Record last updated2026 · 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 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Stanford → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Matthew Baker, MDStanford, CA 943051518252204
- Yashaar Chaichian, MDStanford, CA 943051174788103
- Mark Genovese, M.D.Stanford, CA 943051487711875
- Jorg Goronzy, M.D.Stanford, CA 943051720097124
- Jison Hong, MDStanford, CA 943051740441823
- Tamiko Katsumoto, M.D.Stanford, CA 943051952571317
- Victoria Kelly, M.D.Stanford, CA 943051366622193
- Janice Lin, M.D.Stanford, CA 943051427217223
Common questions
What is Lily Hsin-Chun Sung, MD's NPI number?
Lily Hsin-Chun Sung, MD's National Provider Identifier (NPI) is 1144780370, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Lily Hsin-Chun Sung, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Lily Hsin-Chun Sung, MD's license?
NPPES lists California license number A194353, 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 Lily Hsin-Chun Sung, MD prescribe under Medicare Part D?
In 2024, Lily Hsin-Chun Sung, MD had 15 Medicare Part D claims for 11 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.