Joohyun Song, D.O
Family Medicine Physician · Downey, CA
Joohyun Song, D.O is a family medicine physician with a practice address in Downey, California, and NPI 1407211022, issued on Dec 25, 2015. Check the license (California 20A14298, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joohyun Song
- Credential
- D.O
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A14298 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11500 Brookshire Ave, Downey, CA 90241
- Phone
- (562) 904-5000
- Enumerated
- Dec 25, 2015
- Record last updated
- Jan 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20170926003887); 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 11500 Brookshire Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Payal Bhowmick, PHARMDPharmacotherapy Pharmacist1518783661
- Alexis BoltonFamily Nurse Practitioner1215546197
Verify Joohyun Song in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14298Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average family medicine physician in 2024
3,279 Medicare Part D claims for 355 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. 65 claims were for opioids.
Most prescribed
- Atorvastatin Calcium369 claims
- Amlodipine Besylate162 claims
- Losartan Potassium161 claims
- Lisinopril111 claims
- Fluticasone Propionate89 claims
- Pantoprazole Sodium89 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
- Permanente Medical Group IncFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joohyun Song among 17,133 family medicine physician records in California
Joohyun Song, 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2014 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 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).
65 family medicine physician records list a practice address in Downey
They are 65 of the 3,607 NPPES records with a practice address in Downey, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Downey → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Matthew Blazon Yee, DODowney, CA 902411710043328
- Sherie Carnegie, D ODowney, CA 902411821013772
- Simon Chang, M.D.Downey, CA 902411760594097
- Andrew Chao, D.O.Downey, CA 902411780621755
- Thilan Fernando, M.D.Downey, CA 902411316146632
- Ole Heggeness, D.O.Downey, CA 902411518911908
- Ragaa Iskarous, M.D.Downey, CA 902411215035274
- Antonio Morquecho, PADowney, CA 902411417173220
Common questions
What is Joohyun Song, D.O's NPI number?
Joohyun Song, D.O's National Provider Identifier (NPI) is 1407211022, issued on Dec 25, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joohyun Song, D.O located?
The NPPES record lists a practice address at 11500 Brookshire Ave, Downey, CA, 90241. Phone: (562) 904-5000. Providers update this record themselves, so call before visiting.
How can I verify Joohyun Song, D.O's license?
NPPES lists California license number 20A14298, 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 Joohyun Song, D.O prescribe under Medicare Part D?
In 2024, Joohyun Song, D.O had 3,279 Medicare Part D claims for 355 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.