Paul Hsu, PHD
Rheumatology Physician · San Diego, CA
Paul Hsu, PHD is a rheumatology physician with a practice address in San Diego, California, and NPI 1457858631, issued on Apr 12, 2018. Check the license (California A164984, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul Hsu
- Credential
- PHD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A164984 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Apr 12, 2018
- Record last updated
- Jun 21, 2023
- Fax
- (888) 539-8781
- Medicare enrollment
- Enrolled (PECOS I20230706003649); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison A'Court, MDAnesthesiology Physician1912218199
- Benjamin Abbadessa, M.D.Colon & Rectal Surgery Physician1255593612
- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
- Joseph Abdelmalek, M.DNephrology Physician1740485531
- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Paul Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164984Check 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
18 Medicare Part D claims, 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.
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Paul Hsu among 926 rheumatology physician records in California
Paul Hsu, PHD 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 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2016 · median 2003 among the 641 with a school on file
- Record last updated2023 · 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 San Diego → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Jeannie Chao, M.DSan Diego, CA 921031962600015
- Soo Choi, M.D.San Diego, CA 921031396997946
- Mary Corr, MDSan Diego, CA 921031255389417
- John Daly, M.D.San Diego, CA 921031831124502
- Mark Ginsberg, M.D.San Diego, CA 921031659396778
- Bonnie Hepburn, M.D.San Diego, CA 921031104972850
- Doquyen Huynh, MDSan Diego, CA 921031619135241
- Kenneth Kalunian, MDSan Diego, CA 921031346269990
Common questions
What is Paul Hsu, PHD's NPI number?
Paul Hsu, PHD's National Provider Identifier (NPI) is 1457858631, issued on Apr 12, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Paul Hsu, PHD located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Paul Hsu, PHD's license?
NPPES lists California license number A164984, 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 Paul Hsu, PHD prescribe under Medicare Part D?
In 2024, Paul Hsu, PHD had 18 Medicare Part D claims; 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.