Jennifer Chia June Sun, M.D.
Family Medicine Physician · Claremont, CA
Jennifer Chia June Sun, M.D. is a family medicine physician with a practice address in Claremont, California, and NPI 1558352583, issued on Oct 31, 2005. Check the license (California A85118, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Chia June Sun
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A85118 CA
Self-reported in NPPES; status is on the state search - Practice location
- 689 W Foothill Blvd, Claremont, CA 91711
- Phone
- (909) 482-2058
- Enumerated
- Oct 31, 2005
- Record last updated
- Mar 7, 2023
- Fax
- (909) 482-2082
- Medicare enrollment
- Enrolled (PECOS I20040809000754); may accept Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Jennifer Chia June Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85118Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average family medicine physician in 2024
2,546 Medicare Part D claims for 237 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium189 claims
- Levothyroxine Sodium134 claims
- Metformin Hcl131 claims
- Amlodipine Besylate116 claims
- Lisinopril116 claims
- Losartan Potassium99 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.
Jennifer Chia June Sun among 17,133 family medicine physician records in California
Jennifer Chia June Sun, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2001 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 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).
34 family medicine physician records list a practice address in Claremont
They are 34 of the 800 NPPES records with a practice address in Claremont, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Claremont → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alan Bergen, M.D.Claremont, CA 917111700022118
- Javier Chang, M.D.Claremont, CA 917111558565366
- Jennie Ho, M.D.Claremont, CA 917111013082403
- Lester Holstein, MDClaremont, CA 917111720088792
- Robyn Jacoby, DOClaremont, CA 917111487623575
- Mary Kasem, MDClaremont, CA 917111982639993
- Yen Lai, MDClaremont, CA 917111033110671
- Paul Orr, M.D.Claremont, CA 917111417950221
Common questions
What is Jennifer Chia June Sun, M.D.'s NPI number?
Jennifer Chia June Sun, M.D.'s National Provider Identifier (NPI) is 1558352583, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Chia June Sun, M.D. located?
The NPPES record lists a practice address at 689 W Foothill Blvd, Claremont, CA, 91711. Phone: (909) 482-2058. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Chia June Sun, M.D.'s license?
NPPES lists California license number A85118, 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 Jennifer Chia June Sun, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Chia June Sun, M.D. had 2,546 Medicare Part D claims for 237 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.