Jey Kaelun Chung, M.D.
Internal Medicine Physician · San Francisco, CA
Jey Kaelun Chung, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1306071626, issued on May 18, 2009. Check the license (California A107612, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jey Kaelun Chung
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A107612 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2351 Clay St, San Francisco, CA 94115
- Phone
- (415) 923-3421
- Enumerated
- May 18, 2009
- Record last updated
- Nov 2, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (415) 600-1414
- Medicare enrollment
- Enrolled (PECOS I20101102000533); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2351 Clay St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Au, M.D.Student in an Organized Health Care Education/Training Program1902148091
- Geoffrey Bailey-Gates, M.D.Student in an Organized Health Care Education/Training Program1306137708
- Christopher Brown, MDPulmonary Disease Physician1104900901
- Tze-Ming Chen, M.D.Pulmonary Disease Physician1215092705
- Ivan Cheng, MDCritical Care Medicine (Internal Medicine) Physician1639253438
- Lisa Chui, M.D.Student in an Organized Health Care Education/Training Program1689992927
Verify Jey Kaelun Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A107612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
223 Medicare Part D claims for 62 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 78% of claims.
Most prescribed
- Trelegy Ellipta82 claims
- Albuterol Sulfate Hfa28 claims
- Advair Hfa11 claims
- Spiriva Respimat11 claims
- Ventolin Hfa11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $755.31
8 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- San Francisco Critical Care Med Group IncSan Francisco, CA
- Sutter Bay Medical FoundationSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jey Kaelun Chung among 17,696 internal medicine physician records in California
Jey Kaelun 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 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2004 among the 11,065 with a school on file
- Record last updated2015 · 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).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gary Arsham, M.D.San Francisco, CA 941151487646758
- Richard Caplin, M.D.San Francisco, CA 941151568443455
- C Cooney, M.D.San Francisco, CA 941151255332094
- Sarita Dubey, MDSan Francisco, CA 941151316905466
- Meredith Heller, M.D.San Francisco, CA 941151073562096
- Alan Leung, MDSan Francisco, CA 941151245222330
- Susan Nguyen, MDSan Francisco, CA 941151164470696
- Daniel Null, MDSan Francisco, CA 941151689638744
Common questions
What is Jey Kaelun Chung, M.D.'s NPI number?
Jey Kaelun Chung, M.D.'s National Provider Identifier (NPI) is 1306071626, issued on May 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jey Kaelun Chung, M.D. located?
The NPPES record lists a practice address at 2351 Clay St, San Francisco, CA, 94115. Phone: (415) 923-3421. Providers update this record themselves, so call before visiting.
How can I verify Jey Kaelun Chung, M.D.'s license?
NPPES lists California license number A107612, 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 Jey Kaelun Chung, M.D. prescribe under Medicare Part D?
In 2024, Jey Kaelun Chung, M.D. had 223 Medicare Part D claims for 62 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jey Kaelun Chung, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.