Ruijun Su, MD
Anatomic Pathology & Clinical Pathology Physician · Thousand Oaks, CA
Ruijun Su, MD is an anatomic pathology & clinical pathology physician with a practice address in Thousand Oaks, California, and NPI 1922426451, issued on Apr 2, 2014. Check the license (California A146517, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruijun Su
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- A146517 CA
Self-reported in NPPES; status is on the state search - Practice location
- 351 Rolling Oaks Dr, Thousand Oaks, CA 91361
- Phone
- (805) 373-8582
- Enumerated
- Apr 2, 2014
- Record last updated
- Oct 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191127002554); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 351 Rolling Oaks Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Broxham, M.D.Anatomic Pathology & Clinical Pathology Physician1124262506
- Benica Eyvazzadeh, O.D.Optometrist1225070600
- Edward Henjyoji, MDPlastic and Reconstructive Surgery Physician1790855120
- Cuauhtemoc Magana, MDAnatomic Pathology & Clinical Pathology Physician1982996294
- Joshua Segal, M.D.Anatomic Pathology & Clinical Pathology Physician1144665951
- Brian Slywka, M.D.Plastic Surgery Physician1407903354
Verify Ruijun Su in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A146517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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: $112.61
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,607 providers of this specialty with any payment received $3,565.00 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
- Affiliated Pathologists Medical Group, Inc.Redlands, CA
- Permanente Medical Group IncVallejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruijun Su among 1,554 anatomic pathology & clinical pathology physician records in California
Ruijun Su, MD is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1993 · median 2003 among the 891 with a school on file
- Record last updated2019 · 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 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Thousand Oaks → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Eric Broxham, M.D.Thousand Oaks, CA 913611124262506
- Joel Chan, MDWestlake Village, CA 913611538255617
- Christopher Felten, DOWestlake Village, CA 913611689756967
- Cuauhtemoc Magana, MDThousand Oaks, CA 913611982996294
- Joshua Segal, M.D.Thousand Oaks, CA 913611144665951
- Danielle Westfall, M.D.Thousand Oaks, CA 913611891025896
- Edward Blackman, MDThousand Oaks, CA 913601215903455
- Joel Friedman, DOThousand Oaks, CA 913601487945077
Common questions
What is Ruijun Su, MD's NPI number?
Ruijun Su, MD's National Provider Identifier (NPI) is 1922426451, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ruijun Su, MD located?
The NPPES record lists a practice address at 351 Rolling Oaks Dr, Thousand Oaks, CA, 91361. Phone: (805) 373-8582. Providers update this record themselves, so call before visiting.
How can I verify Ruijun Su, MD's license?
NPPES lists California license number A146517, 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.
What is Ruijun Su, MD'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.