Chen-Yu Conrad Guo
Hospitalist Physician · Torrance, CA
Chen-Yu Conrad Guo is a hospitalist physician with a practice address in Torrance, California, and NPI 1861020554, issued on Mar 30, 2020. Check the license (California A185040, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chen-Yu Conrad Guo
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A185040 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 W Carson St, Torrance, CA 90502
- Phone
- (310) 222-2345
- Enumerated
- Mar 30, 2020
- Record last updated
- Jul 16, 2024
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 1000 W Carson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arjan AbarStudent in an Organized Health Care Education/Training Program1982309290
- Brenda Abarca, MDPsychiatry Physician1407485527
- Maleeha AbbasStudent in an Organized Health Care Education/Training Program1275203499
- Saamirah Abdul-MuminCommunity Health Worker1144683947
- Maria Elena AbedesAmbulatory Care Registered Nurse1184360992
- Hoda Abou-Ziab, PSYDClinical Psychologist1649618125
Verify Chen-Yu Conrad Guo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185040Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average hospitalist physician in 2024
13 Medicare Part D claims, against an average of 521 among the 21,613 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.
Chen-Yu Conrad Guo among 3,099 hospitalist physician records in California
Chen-Yu Conrad Guo is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 85% of them.
- NPI issued2020 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2024 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Torrance → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Brian HoTorrance, CA 905021376170969
- Colette McFadden, MDTorrance, CA 905021093771768
- Jonathan Wu, DOTorrance, CA 905021982233649
- Aashini Shah, M.D.Torrance, CA 905031013448331
- Tracy Bercu, MDTorrance, CA 905051992927230
- Tasneem Bholat, M.D.Torrance, CA 905051114151271
- Ryan Brevig, M.D.Torrance, CA 905051255399143
- Michael Kammerman, M.D.Torrance, CA 905051922061308
Common questions
What is Chen-Yu Conrad Guo's NPI number?
Chen-Yu Conrad Guo's National Provider Identifier (NPI) is 1861020554, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Chen-Yu Conrad Guo located?
The NPPES record lists a practice address at 1000 W Carson St, Torrance, CA, 90502. Phone: (310) 222-2345. Providers update this record themselves, so call before visiting.
How can I verify Chen-Yu Conrad Guo's license?
NPPES lists California license number A185040, 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 Chen-Yu Conrad Guo prescribe under Medicare Part D?
In 2024, Chen-Yu Conrad Guo had 13 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.