Ruoying Feng, MD
Critical Care Medicine (Internal Medicine) Physician · Loma Linda, CA
Ruoying Feng, MD is a critical care medicine (internal medicine) physician with a practice address in Loma Linda, California, and NPI 1457848996, issued on Apr 19, 2018. Check the license (California 175010, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruoying Feng
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 175010 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11201 Benton St, Loma Linda, CA 92357
- Phone
- (858) 353-6887
- Enumerated
- Apr 19, 2018
- Record last updated
- Nov 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20260216001151); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 11201 Benton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arlene AbarcaCritical Care Medicine Registered Nurse1437073467
- Antonio Abiog, M.D.Surgery Physician1952492522
- Hesham AbugufaDentist1538875794
- Matthew Adams, DPTPhysical Therapist1184786071
- Susann Adams, LCSWClinical Social Worker1295849362
- Raychelle Addo, LCSWClinical Social Worker1033307251
Verify Ruoying Feng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 175010Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
50 Medicare Part D claims for 15 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.
Most prescribed
- Montelukast Sodium11 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
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruoying Feng among 723 critical care medicine (internal medicine) physician records in California
Ruoying Feng, MD is one of 723 critical care medicine (internal medicine) 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 2018, is newer than 91% of them.
- NPI issued2018 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2018 · median 2005 among the 559 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Loma Linda → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Prajan SubediLoma Linda, CA 923571124250022
- Alexander Sy, MD, MBA, MSLLoma Linda, CA 923571144297748
- Unknown Abdul Hameed Zaid, M.B,B.SLoma Linda, CA 923541679908800
- Moosa Azadian, M.D.Loma Linda, CA 923541013443746
- Khazenay Bakhsh, DOLoma Linda, CA 923541184940033
- David Bland, M.D.Loma Linda, CA 923541649290750
- Gregory Cheek, M.D.Loma Linda, CA 923541982624003
- Naureen Farook, MDLoma Linda, CA 923541255861852
Common questions
What is Ruoying Feng, MD's NPI number?
Ruoying Feng, MD's National Provider Identifier (NPI) is 1457848996, issued on Apr 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ruoying Feng, MD located?
The NPPES record lists a practice address at 11201 Benton St, Loma Linda, CA, 92357. Phone: (858) 353-6887. Providers update this record themselves, so call before visiting.
How can I verify Ruoying Feng, MD's license?
NPPES lists California license number 175010, 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 Ruoying Feng, MD prescribe under Medicare Part D?
In 2024, Ruoying Feng, MD had 50 Medicare Part D claims for 15 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.