Robert Ray Redfield, MD
Transplant Surgery Physician · Orange, CA
Robert Ray Redfield, MD is a transplant surgery physician with a practice address in Orange, California, and NPI 1326195082, issued on Jan 4, 2007. Check the license (California C184403, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert Ray Redfield
- Credential
- MD
- Primary taxonomy
- Transplant Surgery Physician 204F00000X
- License numbers
- C184403 CA
MD436835 PA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 880-7812
- Enumerated
- Jan 4, 2007
- Record last updated
- Jun 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20230328002791); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest transplant surgery physician records → All 71 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Robert Ray Redfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license C184403Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average transplant surgery physician in 2024
41 Medicare Part D claims for 16 beneficiaries, against an average of 260 among the 541 providers of this specialty who prescribed in Part D.
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): 85.5 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: $1,733.75
10 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 524 providers of this specialty with any payment received $3,913.05 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
- University Surgeons OF Orange A Medical GroupOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Ray Redfield among 71 transplant surgery physician records in California
Robert Ray Redfield, MD is one of 71 transplant surgery physician records with a practice address in California. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 41% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2006 · median 2000 among the 55 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 204F00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Transplant Surgery Physician providers in California
There are 71 transplant surgery physician records in California.
All 71 in California → Every provider in Orange → Transplant Surgery Physician nationwide →
The 8 transplant surgery physician records with the nearest ZIP codes
- Hirohito Ichii, MD, PHDOrange, CA 928681457679656
- Christina Papageorge, M.D.Orange, CA 928681851658710
- Ervin Ruzics, MDOrange, CA 928681285789149
- Caroline TranOrange, CA 928681861192114
- Aloke Mandal, M.D., PH.D.Santa Ana, CA 927041417078882
- Aaron Ahearn, MD-PHDNewport Beach, CA 926631588839997
- Yaniv Fenig, M.D.San Bernardino, CA 924081083029839
- Arputharaj Kore, MDSan Bernardino, CA 924081639286495
Common questions
What is Robert Ray Redfield, MD's NPI number?
Robert Ray Redfield, MD's National Provider Identifier (NPI) is 1326195082, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert Ray Redfield, MD located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 880-7812. Providers update this record themselves, so call before visiting.
How can I verify Robert Ray Redfield, MD's license?
NPPES lists California license number C184403, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Robert Ray Redfield, MD prescribe under Medicare Part D?
In 2024, Robert Ray Redfield, MD had 41 Medicare Part D claims for 16 beneficiaries; the average among transplant surgery physician prescribers was 260. Part D covers Medicare prescriptions only.
What is Robert Ray Redfield, MD's MIPS final score?
The 2023 MIPS final score is 85.5 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.