Yoonjung Jang, D.O.
Family Medicine Physician · Yorba Linda, CA
Yoonjung Jang, D.O. is a family medicine physician with a practice address in Yorba Linda, California, and NPI 1447544614, issued on Jun 6, 2011. Check the license (California 20A11292, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yoonjung Jang
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A11292 CA
Self-reported in NPPES; status is on the state search - Practice location
- 22550 Savi Ranch Pkwy, Yorba Linda, CA 92887
- Phone
- (714) 685-3520
- Enumerated
- Jun 6, 2011
- Record last updated
- Nov 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120123000188); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 22550 Savi Ranch Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Behzad Alimohammadi, MDNephrology Physician1629156534
- Cecilia Chang, M.D.Pediatrics Physician1780708164
- Leslie Fung, MDObstetrics & Gynecology Physician1811137052
- Sherry GomezRegistered Nurse1205592771
- Zainab Hasan, M.D.Family Medicine Physician1528407814
- Anne HookPharmacist1720526684
Verify Yoonjung Jang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average family medicine physician in 2024
4,154 Medicare Part D claims for 551 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium627 claims
- Amlodipine Besylate228 claims
- Lisinopril216 claims
- Levothyroxine Sodium161 claims
- Losartan Potassium134 claims
- Metformin Hcl Er103 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 GroupYorba Linda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yoonjung Jang among 17,133 family medicine physician records in California
Yoonjung Jang, D.O. is one of 17,133 family medicine 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 2011, is newer than 63% of them.
- NPI issued2011 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 family medicine physician records list a practice address in Yorba Linda
They are 48 of the 748 NPPES records with a practice address in Yorba Linda, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Yorba Linda → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Donna Hammel-Davis, M.D.Yorba Linda, CA 928871023166683
- Rania HannaYorba Linda, CA 928871124534904
- Zainab Hasan, M.D.Yorba Linda, CA 928871528407814
- Silvester Lim, M.D.Yorba Linda, CA 928871376681973
- Melanie Mohleji, MDYorba Linda, CA 928871396007571
- Arianne Sharma, DOYorba Linda, CA 928871356928048
- Jason Shen, MDYorba Linda, CA 928871346515921
- Tyler Syndergaard, MDYorba Linda, CA 928871710374293
Common questions
What is Yoonjung Jang, D.O.'s NPI number?
Yoonjung Jang, D.O.'s National Provider Identifier (NPI) is 1447544614, issued on Jun 6, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Yoonjung Jang, D.O. located?
The NPPES record lists a practice address at 22550 Savi Ranch Pkwy, Yorba Linda, CA, 92887. Phone: (714) 685-3520. Providers update this record themselves, so call before visiting.
How can I verify Yoonjung Jang, D.O.'s license?
NPPES lists California license number 20A11292, 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 Yoonjung Jang, D.O. prescribe under Medicare Part D?
In 2024, Yoonjung Jang, D.O. had 4,154 Medicare Part D claims for 551 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.