Joanna Yen-Jung-Woo Quinn, D.O.
Obstetrics & Gynecology Physician · Riverside, CA
Joanna Yen-Jung-Woo Quinn, D.O. is an obstetrics & gynecology physician with a practice address in Riverside, California, and NPI 1205190675, issued on Jun 29, 2012. Check the license (California 20A14172, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joanna Yen-Jung-Woo Quinn
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 20A14172 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10800 Magnolia Ave, Riverside, CA 92505
- Phone
- (915) 353-3314
- Enumerated
- Jun 29, 2012
- Record last updated
- Feb 23, 2024
- Fax
- (951) 353-5628
- Medicare enrollment
- Enrolled (PECOS I20160727002968); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2012
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 10800 Magnolia Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abapo, MDPediatrics Physician1841348786
- Hussein Abdulrassoul, MDOrthopaedic Surgery Physician1972123891
- Kimberly Adams, PA-CMedical Physician Assistant1053522870
- Alfredo Aguiar, PAPhysician Assistant1043368970
- Michael Aguinaldo, M.D.Pediatrics Physician1851531487
- Maria Aguirre, MDPediatrics Physician1295806255
Verify Joanna Yen-Jung-Woo Quinn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14172Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
39 Medicare Part D claims for 17 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Clobetasol Propionate14 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joanna Yen-Jung-Woo Quinn among 5,088 obstetrics & gynecology physician records in California
Joanna Yen-Jung-Woo Quinn, D.O. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2012 · median 2004 among the 2,700 with a school on file
- Record last updated2024 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Riverside → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Richard Chen, MDRiverside, CA 925051053350652
- Jennifer Chou-Kim, MDRiverside, CA 925051457428377
- Diane Connelly, M.D.Riverside, CA 925051013967892
- Gladys Frias Andaya, MDRiverside, CA 925051265457170
- Helen Goo, MDRiverside, CA 925051629017728
- Kathryn Hayes, MDRiverside, CA 925051962579870
- Karin Jones, MDRiverside, CA 925051821165796
- Frank Lombano, MDRiverside, CA 925051962579730
Common questions
What is Joanna Yen-Jung-Woo Quinn, D.O.'s NPI number?
Joanna Yen-Jung-Woo Quinn, D.O.'s National Provider Identifier (NPI) is 1205190675, issued on Jun 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Joanna Yen-Jung-Woo Quinn, D.O. located?
The NPPES record lists a practice address at 10800 Magnolia Ave, Riverside, CA, 92505. Phone: (915) 353-3314. Providers update this record themselves, so call before visiting.
How can I verify Joanna Yen-Jung-Woo Quinn, D.O.'s license?
NPPES lists California license number 20A14172, 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 Joanna Yen-Jung-Woo Quinn, D.O. prescribe under Medicare Part D?
In 2024, Joanna Yen-Jung-Woo Quinn, D.O. had 39 Medicare Part D claims for 17 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.