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Edit this profileAt a glance
- 1010 W la Veta Ave, Suite 510, Orange, CA 92868
About Dr. Macarthur
Based in Orange, CA, Robert J. Macarthur, MD is listed in the NPI registry under orthopedic surgery. Robert graduated from Columbia University College of Physicians and Surgeons in 1991. Robert is also listed as specializing in orthopaedic surgery. According to Medicare claims data, Robert cared for 60 Medicare patients across 83 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and aspiration and/or injection of fluid from large joint. NPI 1508949470 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 550-0070
- Email not available
Practice Locations
1010 W LA VETA AVE SUITE 510
Orange, CA 92868
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Spine
Procedures & services
Most searched procedures
Evaluation and nonsurgical
Arthroscopy
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and upper extremity
Injections & Non-Surgical
Injections & pain relief
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
Shoulder surgery
Trauma & Fractures
Trauma and fixation
Procedures Most Often Billed to Medicare
83 services · 60 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
18 | Less often than most peers in Orthopedic Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
43 | Less often than most peers in Orthopedic Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
22 | Less often than most peers in Orthopedic Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopedic surgeons in Orange 8
Same specialty, same city.
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1991 at Columbia University College of Physicians and Surgeons 7
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Macarthur?
Dr. Macarthur is an orthopedic surgeon in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopedic Surgery”.
NPI registry
What is Dr. Macarthur's address?
Dr. Macarthur is listed at 1010 W la Veta Ave Suite 510, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Macarthur?
The number on file is (714) 550-0070. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Macarthur's NPI number?
Dr. Macarthur's National Provider Identifier is 1508949470. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Macarthur train?
Dr. Macarthur attended Columbia University College of Physicians and Surgeons, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Macarthur been practicing?
Dr. Macarthur has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Macarthur perform?
According to Medicare billing data, Dr. Macarthur performs procedures including aspiration and/or injection of fluid from large joint, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Macarthur confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Macarthur. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.