Joan Soon Chung, M.D.
Internal Medicine Physician · San Diego, CA
Joan Soon Chung, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1649702200, issued on Mar 31, 2017. Check the license (California A161205, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joan Soon Chung
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A161205 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10990 San Diego Mission RD, San Diego, CA 92108
- Phone
- (619) 641-4044
- Enumerated
- Mar 31, 2017
- Record last updated
- Oct 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20200615000841); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 10990 San Diego Mission RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennigrace Bautista, PHARM. D.Pharmacist1972663631
Verify Joan Soon Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A161205Check 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 internal medicine physician in 2024
29 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 21 claims were for opioids.
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 GroupSan Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joan Soon Chung among 17,696 internal medicine physician records in California
Joan Soon Chung, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Bittleman, MDSan Diego, CA 921081700858479
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- Tuan Dang, MDSan Diego, CA 921081821050345
- Mark Hendricks, M.D.San Diego, CA 921081164409983
- Kurt Henry, M.D.San Diego, CA 921081073574380
- Hong Huynh, M.D.San Diego, CA 921081770514192
- Diego Jarrin, M.D.San Diego, CA 921081003926833
- Tri Lac, MDSan Diego, CA 921081194796664
Common questions
What is Joan Soon Chung, M.D.'s NPI number?
Joan Soon Chung, M.D.'s National Provider Identifier (NPI) is 1649702200, issued on Mar 31, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Joan Soon Chung, M.D. located?
The NPPES record lists a practice address at 10990 San Diego Mission RD, San Diego, CA, 92108. Phone: (619) 641-4044. Providers update this record themselves, so call before visiting.
How can I verify Joan Soon Chung, M.D.'s license?
NPPES lists California license number A161205, 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 Joan Soon Chung, M.D. prescribe under Medicare Part D?
In 2024, Joan Soon Chung, M.D. had 29 Medicare Part D claims for 19 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.