Xing J. Ren, M.D.
Internal Medicine Physician · San Diego, CA
Xing J. Ren, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1184658973, issued on Jul 10, 2006. Check the license (California A54295, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Xing J. Ren
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A54295 CA
153935 MA
Self-reported in NPPES; status is on the state search - Practice location
- 7565 Mission Valley RD, San Diego, CA 92108
- Phone
- (619) 245-2350
- Enumerated
- Jul 10, 2006
- Record last updated
- Nov 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (619) 245-2893
- Medicare enrollment
- Enrolled (PECOS I20100503000396); accepts Medicare assignment
- 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 7565 Mission Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Xing J. Ren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A54295Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,369 Medicare Part D claims for 220 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium127 claims
- Amlodipine Besylate105 claims
- Levothyroxine Sodium89 claims
- Losartan Potassium63 claims
- Lisinopril54 claims
- Tamsulosin Hcl48 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.
Bills Medicare through one group practice
- Scripps HealthSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Xing J. Ren among 17,696 internal medicine physician records in California
Xing J. Ren, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1984 · median 2004 among the 11,065 with a school on file
- Record last updated2018 · 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).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
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- Kurt Henry, M.D.San Diego, CA 921081073574380
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- Tri Lac, MDSan Diego, CA 921081194796664
Common questions
What is Xing J. Ren, M.D.'s NPI number?
Xing J. Ren, M.D.'s National Provider Identifier (NPI) is 1184658973, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Xing J. Ren, M.D. located?
The NPPES record lists a practice address at 7565 Mission Valley RD, San Diego, CA, 92108. Phone: (619) 245-2350. Providers update this record themselves, so call before visiting.
How can I verify Xing J. Ren, M.D.'s license?
NPPES lists California license number A54295, 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 Xing J. Ren, M.D. prescribe under Medicare Part D?
In 2024, Xing J. Ren, M.D. had 1,369 Medicare Part D claims for 220 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.