Edward Chih-Yu Sun, MD
Orthopaedic Surgery of the Spine Physician · San Mateo, CA
Edward Chih-Yu Sun, MD is an orthopaedic surgery of the spine physician with a practice address in San Mateo, California, and NPI 1831161645, issued on Feb 6, 2006. Check the license (California A64612, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Edward Chih-Yu Sun
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery of the Spine Physician 207XS0117X
- License number
- A64612 CA
Self-reported in NPPES; status is on the state search - Practice location
- 359 N San Mateo Dr, San Mateo, CA 94401
- Phone
- (650) 685-7100
- Enumerated
- Feb 6, 2006
- Record last updated
- Sep 13, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (650) 685-7109
- Medicare enrollment
- Enrolled (PECOS I20040903000609); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery of the spine physician records → All 314 in California → Look up another NPI →
Also registered at 359 N San Mateo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kurosch Hatami, D.D.S.General Practice Dentistry1245370287
Verify Edward Chih-Yu Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64612Check 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 orthopaedic surgery of the spine physician in 2024
275 Medicare Part D claims for 96 beneficiaries, against an average of 381 among the 1,714 providers of this specialty who prescribed in Part D. 159 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen64 claims
- Tramadol Hcl42 claims
- Gabapentin28 claims
- Oxycodone-Acetaminophen21 claims
- Oxycodone Hcl20 claims
- Methylprednisolone19 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $117.45
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,726 providers of this specialty with any payment received $34,071.55 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.
Edward Chih-Yu Sun among 314 orthopaedic surgery of the spine physician records in California
Edward Chih-Yu Sun, MD is one of 314 orthopaedic surgery of the spine physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 53% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1996 · median 2003 among the 226 with a school on file
- Record last updated2011 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0117X 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 of the Spine Physician providers in California
There are 314 orthopaedic surgery of the spine physician records in California.
All 314 in California → Every provider in San Mateo → Orthopaedic Surgery of the Spine Physician nationwide →
The 8 orthopaedic surgery of the spine physician records with the nearest ZIP codes
- Todd Alamin, MDStanford, CA 943051720134299
- Serena Hu, MDStanford, CA 943051144274747
- John Kleimeyer, MDStanford, CA 943051376986232
- James Mok, MDStanford, CA 943051831271436
- Kirkham Wood, MDStanford, CA 943051053388702
- Eugene Carragee, M.D.Palo Alto, CA 943041881740355
- Brian KaramianPalo Alto, CA 943041629465182
- Kevin Rolfe, M.D.Palo Alto, CA 943041588787014
Common questions
What is Edward Chih-Yu Sun, MD's NPI number?
Edward Chih-Yu Sun, MD's National Provider Identifier (NPI) is 1831161645, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Edward Chih-Yu Sun, MD located?
The NPPES record lists a practice address at 359 N San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 685-7100. Providers update this record themselves, so call before visiting.
How can I verify Edward Chih-Yu Sun, MD's license?
NPPES lists California license number A64612, 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 Edward Chih-Yu Sun, MD prescribe under Medicare Part D?
In 2024, Edward Chih-Yu Sun, MD had 275 Medicare Part D claims for 96 beneficiaries; the average among orthopaedic surgery of the spine physician prescribers was 381. Part D covers Medicare prescriptions only.
What is Edward Chih-Yu Sun, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.