NPPES file of Aug 9, 2026

Steve Ming-Cheng Sun, M.D.

Emergency Medicine Physician · San Jose, CA

Steve Ming-Cheng Sun, M.D. is an emergency medicine physician with a practice address in San Jose, California, and NPI 1952530537, issued on Jul 5, 2009. Check the license (California A108825, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952530537
Name
Steve Ming-Cheng Sun
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A108825 CA
Self-reported in NPPES; status is on the state search
Practice location
352 LA Strada Dr, San Jose, CA 95123
Phone
(408) 365-1602
Enumerated
Jul 5, 2009
Record last updated
Jun 27, 2025
Medicare enrollment
Enrolled (PECOS I20090725000039); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Steve Ming-Cheng Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A108825
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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60% fewer Medicare Part D claims than the average emergency medicine physician in 2024

90 Medicare Part D claims for 68 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Steve Sun90
  2. Specialty average226

Most prescribed

  1. Cephalexin11 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): 94.6 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.

  1. Qualityout of 100 · 30% of the final score76.7
  2. Costout of 100 · 30%97.1
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupSan Diego, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Steve Ming-Cheng Sun among 7,751 emergency medicine physician records in California

Steve Ming-Cheng Sun, M.D. is one of 7,751 emergency 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 2009, is newer than 54% of them.

  • NPI issued2009 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2005 · median 2011 among the 4,560 with a school on file
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Joseph Bistrain, M.D.San Jose, CA 951241235177502
  2. Miles Congress, M.DSan Jose, CA 951241144268418
  3. Rhys Dapar, M.DSan Jose, CA 951241053359323
  4. David FeldmanSan Jose, CA 951241821109190
  5. Gary Gechlik, M.DSan Jose, CA 951241578501763
  6. Carol Hsu, M.DSan Jose, CA 951241487692679
  7. Gary Li, M.DSan Jose, CA 951241295773489
  8. Helmut Meisl, M.DSan Jose, CA 951241760420038

Common questions

What is Steve Ming-Cheng Sun, M.D.'s NPI number?

Steve Ming-Cheng Sun, M.D.'s National Provider Identifier (NPI) is 1952530537, issued on Jul 5, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Steve Ming-Cheng Sun, M.D. located?

The NPPES record lists a practice address at 352 LA Strada Dr, San Jose, CA, 95123. Phone: (408) 365-1602. Providers update this record themselves, so call before visiting.

How can I verify Steve Ming-Cheng Sun, M.D.'s license?

NPPES lists California license number A108825, 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 Steve Ming-Cheng Sun, M.D. prescribe under Medicare Part D?

In 2024, Steve Ming-Cheng Sun, M.D. had 90 Medicare Part D claims for 68 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Steve Ming-Cheng Sun, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.6 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.