Michael Sun, M.D.
Orthopaedic Surgery Physician · San Diego, CA
Michael Sun, M.D. is an orthopaedic surgery physician with a practice address in San Diego, California, and NPI 1437635406, issued on Jul 12, 2018. Check the license (California A155136, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Sun
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A155136 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7485 Mission Valley RD Ste 104A, San Diego, CA 92108
- Phone
- (619) 291-8930
- Enumerated
- Jul 12, 2018
- Record last updated
- Aug 16, 2023
- Fax
- (619) 291-8491
- Medicare enrollment
- Enrolled (PECOS I20230920002171); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 7485 Mission Valley RD Ste 104A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jirael Hipol, DPTOrthopedic Physical Therapist1053024489
- Devanshu Kansara, M.D.Orthopaedic Surgery Physician1316940109
- Kevin Toliver, M.D.Pain Medicine (Anesthesiology) Physician1346202850
Verify Michael Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A155136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
47 Medicare Part D claims for 31 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen15 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): 68.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $280.30
6 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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 one group practice
- California Orthopaedic Institute Medical Associates IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Sun among 2,276 orthopaedic surgery physician records in California
Michael Sun, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · median 2003 among the 1,347 with a school on file
- Record last updated2023 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in San Diego → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- William Adsit, MDSan Diego, CA 921081922068311
- Mark Austerlitz, M.D.San Diego, CA 921081912057381
- Devanshu Kansara, M.D.San Diego, CA 921081316940109
- Lester Mohler, MDSan Diego, CA 921081548220080
- Drew Peterson, MDSan Diego, CA 921081063473023
- Jeffrey Schultz, MDSan Diego, CA 921081518927011
- Michael Sirota, MDSan Diego, CA 921081558542423
- David Sosnoski, DOSan Diego, CA 921081114542776
Common questions
What is Michael Sun, M.D.'s NPI number?
Michael Sun, M.D.'s National Provider Identifier (NPI) is 1437635406, issued on Jul 12, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Michael Sun, M.D. located?
The NPPES record lists a practice address at 7485 Mission Valley RD Ste 104A, San Diego, CA, 92108. Phone: (619) 291-8930. Providers update this record themselves, so call before visiting.
How can I verify Michael Sun, M.D.'s license?
NPPES lists California license number A155136, 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 Michael Sun, M.D. prescribe under Medicare Part D?
In 2024, Michael Sun, M.D. had 47 Medicare Part D claims for 31 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Michael Sun, M.D.'s MIPS final score?
The 2023 MIPS final score is 68.6 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.