Robert John Macarthur, MD
Orthopaedic Surgery Physician · Orange, CA
Robert John Macarthur, MD is an orthopaedic surgery physician with a practice address in Orange, California, and NPI 1508949470, issued on Oct 23, 2006. Check the license (California G76912, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert John Macarthur
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- G76912 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1010 W LA Veta Ave, Orange, CA 92868
- Phone
- (714) 550-0070
- Enumerated
- Oct 23, 2006
- Record last updated
- Oct 17, 2023
- Fax
- (714) 550-0035
- Medicare enrollment
- Enrolled (PECOS I20090622000069); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1991
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 1010 W LA Veta Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel ChiuGerontology Nurse Practitioner1427419530
Verify Robert John Macarthur in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G76912Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
12 Medicare Part D claims, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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 2 group practices
- Desert Valley Medical Group IncVictorville, CA
- Premier Orthopaedic Trauma Specialists PmcVictorville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert John Macarthur among 2,276 orthopaedic surgery physician records in California
Robert John Macarthur, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1991 · median 2003 among the 1,347 with a school on file
- Record last updated2023 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X 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 Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Orange → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Steven Barnett, MDOrange, CA 928681750378030
- Lawrence Barnett, MDOrange, CA 928681386631406
- Paul Beck, MDOrange, CA 928681356322879
- Peter Birnbaum, D.O. INC.Orange, CA 928681538267042
- Michael Gillman, M.D.Orange, CA 928681275536633
- Robert Gorab, MDOrange, CA 928681326035601
- William McMaster, M.D.Orange, CA 928681336175058
- Pablo Prietto, MDOrange, CA 928681073500351
Common questions
What is Robert John Macarthur, MD's NPI number?
Robert John Macarthur, MD's National Provider Identifier (NPI) is 1508949470, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert John Macarthur, MD located?
The NPPES record lists a practice address at 1010 W LA Veta Ave, Orange, CA, 92868. Phone: (714) 550-0070. Providers update this record themselves, so call before visiting.
How can I verify Robert John Macarthur, MD's license?
NPPES lists California license number G76912, 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 Robert John Macarthur, MD prescribe under Medicare Part D?
In 2024, Robert John Macarthur, MD had 12 Medicare Part D claims; the average among orthopaedic surgery physician prescribers was 346. 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.