Robert E Caton, MD
Orthopedic Surgery · Modesto
- Medicare standing
- 2 flags on the record
- Listed below.
- Plans that list them
- 9
- 1 carrier
- Office
- 1
- Since medical school
- 46 years
- University of South Alabama College of Medicine, 1980
On the public record
- California licence: Probation Completed
- 2 Medical Board actions on record
Offices
1 location · Golden Valley Health Centers · 114 clinicians in this group
Looking this up.
Plans that list them
9 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Caton’s office at (209) 722-4842 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
California Medical Board record
Licence G48633 · Current
Licensed to practise in California · since 1982 · expires 2027-10-31 · University of South Alabama College of Medicine. Board flags: Probation Completed, Misdemeanor Conviction.
Public record actions
| 2025-12-04 | Board disciplineDiscipline | Probation completed. · 8002017032139 |
| 2018-09-27 | Misdemeanor convictionDiscipline | Pled NO contest to violating penal code section 549 (false and fraudulent claim). · Superior court of california, county of orange · 17CF0796 · Three years' informal probation with terms and conditions which include paying restitution. on 01/26/2021, the court granted an order for dismissal pursuant to penal code section 1203.4. |
Surgery centers they own
- Physicians Surgery Center of Modesto, Inc, River Surgical InstituteAmbulatory Surgery Center · Modesto, CA18.8% owner since 2004 · accredited by AAAHCAccreditation Renewed4 inspections, 3 with deficiencies · last 2026-02-24: Requirements Met
Original Medicare doctor bills
$25,621
Medicare paid this office $25,621 for 88 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Short return visit (20+ min) | 62 | $6,356 | $62 |
| Aspiration and/or injection of fluid from large joint | 22 | $2,080 | $47 |
| New patient visit (30+ min) | 22 | $1,730 | $79 |
Procedures Medicare counted
| Knee replacement | 1-10 | None |
| Lower limb (leg) arthroscopy (minimally invasive joint repair) | 1-10 | None |
Procedures year by year
| Procedure | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | 94 | 75 | 102 | 48 | – | 44 |
| Removal of knee cartilage using an endoscope | 13 | 12 | – | – | – | – |
| Replacement of knee joint, both sides of knee | 11 | – | – | 12 | – | – |
Times billed to Original Medicare each year. A blank year means fewer than 11 people had it, or none: Medicare does not publish smaller counts. Medicare Advantage patients are not included.
Who their Medicare patients are
88 Original Medicare patients in 2024. Average age 68 · Under 65 24% · Women 63% · Also on Medicaid 84% · Health risk score 1.04. At or below the middle of the specialty; the typical orthopedic surgery clinician is at 1.13.
Conditions among them: High blood pressure 67% · Diabetes 44% · Depression 17% · Chronic kidney disease 16%.
The office billed $85,975, Medicare allowed $34,616 and paid $25,621; for 246 services of 27 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Year by year
| 2024 | 88 | 246 | 68 | 1.04 | $85,975 | $25,621 |
| 2023 | 94 | 240 | 67 | 1.26 | $93,294 | $33,652 |
| 2022 | 114 | 393 | 67 | 1.05 | $118,663 | $43,631 |
| 2021 | 114 | 455 | 66 | 1.14 | $151,862 | $47,703 |
| 2020 | 138 | 437 | 67 | 1.23 | $135,110 | $48,211 |
| 2019 | 149 | 529 | 65 | 1.23 | $197,003 | $60,693 |
| 2018 | 157 | 531 | 66 | 1.41 | $169,077 | $50,782 |
| 2017 | 175 | 656 | 67 | 1.50 | $186,465 | $60,898 |
| 2016 | 194 | 588 | 69 | 1.48 | $265,751 | $93,775 |
| 2015 | 190 | 669 | 69 | 1.54 | $321,064 | $107,226 |
| 2014 | 177 | 686 | 67 | 1.48 | $228,659 | $76,354 |
| 2013 | 136 | 423 | 66 | 1.29 | $188,388 | $63,858 |
Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.
See the services billed each year
2023: 4 services
| Short return visit (20+ min) | 62 | $7,976 | $69 |
| New patient visit (30+ min) | 20 | $1,815 | $91 |
| X-ray of knee, 3 views | 15 | $1,009 | $32 |
| New patient visit (15+ min) | 14 | $724 | $52 |
2022: 6 services
| Replacement of knee joint, both sides of knee | 11 | $12,391 | $1,033 |
| Short return visit (20+ min) | 87 | $11,458 | $67 |
| Aspiration and/or injection of fluid from large joint | 22 | $2,430 | $51 |
| X-ray of knee, 3 views | 18 | $1,194 | $33 |
| New patient visit (15+ min) | 26 | $1,164 | $45 |
| New patient visit (30+ min) | 11 | $915 | $83 |
2021: 4 services
| Short return visit (20+ min) | 76 | $9,706 | $67 |
| Aspiration and/or injection of fluid from large joint | 31 | $5,149 | $50 |
| New patient visit (15+ min) | 34 | $1,623 | $48 |
| New patient visit (30+ min) | 16 | $1,294 | $81 |
2020: 7 services
| Short return visit (20+ min) | 86 | $7,827 | $56 |
| Removal of knee cartilage using an endoscope | 11 | $5,404 | $450 |
| Aspiration and/or injection of fluid from large joint | 30 | $3,713 | $50 |
| New patient visit (30+ min) | 19 | $1,697 | $89 |
| New patient visit (10+ min) | 39 | $1,205 | $31 |
| X-ray of knee, 3 views | 11 | $393 | $26 |
| Short return visit | 13 | $380 | $29 |
2019: 7 services
| Replacement of knee joint, both sides of knee | 11 | $11,650 | $1,059 |
| Short return visit (20+ min) | 90 | $9,367 | $56 |
| Removal of knee cartilage using an endoscope | 13 | $5,420 | $417 |
| Aspiration and/or injection of fluid from large joint | 35 | $4,253 | $45 |
| New patient visit (30+ min) | 25 | $2,121 | $85 |
| Short return visit | 29 | $954 | $27 |
| New patient visit (10+ min) | 25 | $716 | $29 |
2018: 6 services
| Short return visit (20+ min) | 79 | $8,273 | $56 |
| Aspiration and/or injection of fluid from large joint | 34 | $5,099 | $44 |
| Removal of knee cartilage using an endoscope | 11 | $4,471 | $406 |
| New patient visit (30+ min) | 31 | $2,464 | $79 |
| Short return visit | 33 | $1,130 | $28 |
| New patient visit (10+ min) | 29 | $919 | $32 |
2017: 5 services
| Short return visit (20+ min) | 96 | $10,462 | $57 |
| Aspiration and/or injection of fluid from large joint | 32 | $5,322 | $43 |
| New patient visit (30+ min) | 53 | $4,401 | $83 |
| Short return visit | 32 | $1,209 | $29 |
| New patient visit (10+ min) | 34 | $995 | $29 |
2016: 6 services
| Treatment of broken neck of thigh bone with plate/screw implant | 12 | $11,350 | $946 |
| Short return visit (20+ min) | 81 | $9,137 | $57 |
| New patient visit (30+ min) | 47 | $3,653 | $78 |
| Aspiration and/or injection of fluid from large joint | 26 | $3,074 | $43 |
| Short return visit | 35 | $1,432 | $30 |
| New patient visit (10+ min) | 21 | $612 | $29 |
2015: 6 services
| Treatment of broken neck of thigh bone with plate/screw implant | 13 | $12,986 | $999 |
| Short return visit (20+ min) | 91 | $9,445 | $57 |
| Aspiration and/or injection of fluid from large joint | 27 | $4,577 | $45 |
| New patient visit (30+ min) | 48 | $4,211 | $88 |
| Short return visit | 19 | $681 | $30 |
| New patient visit (10+ min) | 23 | $635 | $28 |
2014: 5 services
| Short return visit (20+ min) | 104 | $12,883 | $57 |
| Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose | 14 | $7,299 | None |
| Aspiration and/or injection of fluid from large joint | 36 | $6,263 | $44 |
| New patient visit (30+ min) | 39 | $3,284 | $84 |
| New patient visit (10+ min) | 27 | $888 | $33 |
2013: 4 services
| Fusion of sacroiliac joint between spine and pelvis with bone graft, open procedure | 11 | $9,162 | $833 |
| Short return visit (20+ min) | 86 | $9,115 | $54 |
| New patient visit (30+ min) | 51 | $4,276 | $84 |
| Aspiration and/or injection of fluid from large joint | 20 | $2,439 | $44 |
Medicaid work
$74,587 in 2024
Medicaid paid $74,587 for 1,803 billed services this clinician did in 2024, up to 108 people in a month for one service.
Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.
| Short return visit (20+ min) | 967 | $31,601 |
| New patient visit (30+ min) | 420 | $26,534 |
| OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES | 109 | $6,898 |
| OFF/OP EST MAY X REQ PHY/QHP | 223 | $5,575 |
| Arthrocentesis and injection of knee joint | 71 | $3,576 |
| Radiologic examination, knee; 3 views | 13 | $403 |
| 2024 | 1,803 | 6 | 108 | $74,587 |
| 2023 | 1,825 | 11 | 58 | $68,819 |
| 2022 | 1,460 | 6 | 58 | $49,974 |
| 2021 | 1,439 | 10 | 54 | $43,620 |
| 2020 | 1,363 | 12 | 52 | $37,738 |
| 2019 | 1,340 | 9 | 69 | $35,143 |
| 2018 | 2,371 | 22 | 44 | $58,249 |
See the largest Medicaid services in earlier years
2023
| Short return visit (20+ min) | 796 | $26,817 |
| New patient visit (30+ min) | 252 | $15,793 |
| OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES | 249 | $13,962 |
| OFF/OP EST MAY X REQ PHY/QHP | 435 | $10,875 |
| X-RAY EXAM OF ANKLE | 15 | $484 |
| Service | 13 | $282 |
| Basic metabolic panel (Calcium, total) This panel must include the following: Calcium, total (82310) Carbon dioxide (bicarbonate) (82374) Chloride (82435) Creatinine (82565) Glucose (82947) Potassium (84132) Sodium (84295) Urea nitrogen (BUN) (84520) | 14 | $178 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 13 | $168 |
| Ringers lactate infusion, up to 1000 cc | 12 | $99 |
| Injection, propofol, 10 mg | 13 | $93 |
| Fentanyl citrate injection | 13 | $68 |
2022
| Short return visit (20+ min) | 651 | $22,125 |
| OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES | 240 | $13,215 |
| OFF/OP EST MAY X REQ PHY/QHP | 512 | $12,800 |
| New patient visit (30+ min) | 12 | $744 |
| Service | 29 | $593 |
| X-RAY EXAM OF ANKLE | 16 | $497 |
2021
| Short return visit (20+ min) | 592 | $17,690 |
| OFF/OP EST MAY X REQ PHY/QHP | 528 | $13,200 |
| OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES | 171 | $8,582 |
| Service | 17 | $2,492 |
| Cefazolin sodium injection | 24 | $390 |
| Service | 12 | $346 |
| Service | 16 | $320 |
| Ringers lactate infusion, up to 1000 cc | 28 | $305 |
| Injection, midazolam hydrochloride, per 1 mg | 24 | $150 |
| Fentanyl citrate injection | 27 | $145 |
2020
| Short return visit (20+ min) | 555 | $17,397 |
| OFF/OP EST MAY X REQ PHY/QHP | 506 | $12,641 |
| OFFICE/OUTPATIENT VISIT NEW | 146 | $4,730 |
| New patient visit (30+ min) | 14 | $921 |
| Service | 31 | $616 |
| Arthrocentesis and injection of knee joint | 15 | $604 |
| Service | 14 | $235 |
| Ringers lactate infusion, up to 1000 cc | 22 | $172 |
| Basic metabolic panel (Calcium, total) This panel must include the following: Calcium, total (82310) Carbon dioxide (bicarbonate) (82374) Chloride (82435) Creatinine (82565) Glucose (82947) Potassium (84132) Sodium (84295) Urea nitrogen (BUN) (84520) | 24 | $152 |
| Cefazolin sodium injection | 12 | $108 |
| Injection, propofol, 10 mg | 12 | $89 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 12 | $72 |
2019
| Short return visit (20+ min) | 465 | $12,485 |
| OFF/OP EST MAY X REQ PHY/QHP | 421 | $10,507 |
| OFFICE/OUTPATIENT VISIT NEW | 159 | $5,034 |
| Short return visit | 118 | $2,945 |
| New patient visit (30+ min) | 29 | $1,756 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 39 | $1,331 |
| Arthrocentesis and injection of knee joint | 18 | $699 |
| Service | 38 | $201 |
| Basic metabolic panel (Calcium, total) This panel must include the following: Calcium, total (82310) Carbon dioxide (bicarbonate) (82374) Chloride (82435) Creatinine (82565) Glucose (82947) Potassium (84132) Sodium (84295) Urea nitrogen (BUN) (84520) | 53 | $186 |
2018
| Short return visit (20+ min) | 303 | $10,084 |
| Short return visit | 343 | $9,812 |
| OFF/OP EST MAY X REQ PHY/QHP | 369 | $9,226 |
| New patient visit (30+ min) | 110 | $7,730 |
| OFFICE/OUTPATIENT VISIT NEW | 221 | $7,588 |
| Cefazolin sodium injection | 18 | $2,353 |
| Fentanyl citrate injection | 19 | $2,000 |
| Injection, propofol, 10 mg | 15 | $1,836 |
| Injection, morphine sulfate, up to 10 mg | 23 | $1,484 |
| Service | 130 | $1,296 |
| X-RAY EXAM OF ANKLE | 28 | $1,216 |
| Injection, ondansetron hydrochloride, per 1 mg | 18 | $1,202 |
Drugs they prescribed that Part D paid
$1,249
Pharmacies billed $1,249 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 43% of their Part D prescriptions (52 of 120) in 2024. Above the middle of the specialty; the typical orthopedic surgery clinician is at 31%. Surgeons prescribe little besides pain medicine after an operation, so their opioid share runs high.
120 generic and 0 brand-name prescriptions · $1,249 in drug cost · 24 antibiotic prescriptions to 18 people.
Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.
| Hydrocodone-Acetaminophen | 48 | $403 | $8 |
| Betamethasone Dipropionate | 13 | $261 | $20 |
| Cephalexin | 18 | $79 | $4 |
Year by year
| 2024 | 120 | 45 | 43% (52) | 0% | $1,249 |
| 2023 | 162 | 65 | 48% (78) | None | $2,399 |
| 2022 | 234 | 70 | 42% (98) | None | $3,237 |
| 2021 | 201 | 81 | 37% (75) | 5% | $6,764 |
| 2020 | 173 | 77 | 45% (78) | 0% | $1,927 |
| 2019 | 235 | 103 | 37% (88) | None | $4,142 |
| 2018 | 246 | 107 | 31% (76) | None | $4,788 |
| 2017 | 330 | 134 | 49% (160) | None | $4,183 |
| 2016 | 251 | 111 | 42% (105) | None | $4,491 |
| 2015 | 304 | 102 | 41% (125) | 4% | $5,651 |
| 2014 | 309 | 108 | 38% (116) | 5% | $11,626 |
| 2013 | 401 | 126 | 41% (164) | 3% | $8,434 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 4 drugs
| Hydrocodone-Acetaminophen | 64 | $775 | $12 |
| Cephalexin | 26 | $522 | $20 |
| Diclofenac | 17 | $319 | $19 |
| Cyclobenzaprine | 14 | $125 | $9 |
2022: 5 drugs
| Hydrocodone-Acetaminophen | 77 | $652 | $8 |
| Diclofenac | 39 | $649 | $17 |
| Betamethasone Dipropionate | 20 | $291 | $15 |
| Cephalexin | 35 | $224 | $6 |
| Cyclobenzaprine | 20 | $141 | $7 |
2021: 6 drugs
| Brilinta | 11 | $4,758 | $433 |
| Diclofenac | 34 | $535 | $16 |
| Hydrocodone-Acetaminophen | 53 | $473 | $9 |
| Cephalexin | 22 | $192 | $9 |
| Cyclobenzaprine | 15 | $149 | $10 |
| Acetaminophen-Codeine | 15 | $129 | $9 |
2020: 3 drugs
| Diclofenac | 49 | $965 | $20 |
| Hydrocodone-Acetaminophen | 59 | $439 | $7 |
| Cephalexin | 13 | $83 | $6 |
2019: 5 drugs
| Diclofenac | 81 | $2,355 | $29 |
| Hydrocodone-Acetaminophen | 61 | $612 | $10 |
| Cephalexin | 18 | $228 | $13 |
| Acetaminophen-Codeine | 16 | $121 | $8 |
| Tramadol | 11 | $64 | $6 |
2018: 4 drugs
| Diclofenac | 96 | $1,760 | $18 |
| Hydrocodone-Acetaminophen | 51 | $679 | $13 |
| Acetaminophen-Codeine | 14 | $120 | $9 |
| Tramadol | 11 | $106 | $10 |
2017: 7 drugs
| Diclofenac | 73 | $1,564 | $21 |
| Hydrocodone-Acetaminophen | 125 | $1,203 | $10 |
| Cephalexin | 24 | $143 | $6 |
| Ciprofloxacin | 11 | $135 | $12 |
| Tramadol | 22 | $103 | $5 |
| Acetaminophen-Codeine | 12 | $101 | $8 |
| Diazepam | 15 | $56 | $4 |
2016: 5 drugs
| Diclofenac | 75 | $1,863 | $25 |
| Hydrocodone-Acetaminophen | 68 | $1,059 | $16 |
| Acetaminophen-Codeine | 19 | $235 | $12 |
| Cephalexin | 17 | $150 | $9 |
| Tramadol | 17 | $113 | $7 |
2015: 8 drugs
| Diclofenac | 75 | $1,311 | $17 |
| Hydrocodone-Acetaminophen | 72 | $1,160 | $16 |
| Carisoprodol | 17 | $270 | $16 |
| Tramadol | 43 | $240 | $6 |
| Naproxen | 12 | $172 | $14 |
| Cephalexin | 16 | $135 | $8 |
| Ibuprofen | 12 | $99 | $8 |
| Amoxicillin | 12 | $21 | $2 |
2014: 6 drugs
| Diclofenac | 73 | $1,695 | $23 |
| Hydrocodone-Acetaminophen | 74 | $812 | $11 |
| Carisoprodol | 32 | $550 | $17 |
| Tramadol | 39 | $322 | $8 |
| Naproxen | 25 | $282 | $11 |
| Ibuprofen | 12 | $134 | $11 |
2013: 7 drugs
| Diclofenac | 79 | $2,027 | $26 |
| Hydrocodone-Acetaminophen | 95 | $1,206 | $13 |
| Carisoprodol | 53 | $607 | $11 |
| Tramadol | 56 | $441 | $8 |
| Naproxen | 31 | $270 | $9 |
| Cephalexin | 17 | $175 | $10 |
| Acetaminophen-Codeine | 12 | $115 | $10 |
Money from drug and device companies
$25 in 2024
| 2024 | 1 | 1 | None | $25 |
| 2022 | 1 | 1 | None | $15 |
| 2020 | 1 | 1 | None | $40 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Organogenesis | None | $25 | 1 payment
|
See the published payment
| Organogenesis | Meals · 2024-08-26 | None | $25 |
See earlier years (2022, 2020)
2022: $15
| Stryker | Variax | $15 | 1 payment
|
2020: $40
| Acell | None | $40 | 1 payment
|
Professional record
- NPI
- 1861593196
- Licence
- CA G48633California G48633: Current · expires 2027-10-31
- Trained
- University of South Alabama College of Medicine, 1980 · 46 years ago
- Gender
- Male
More record details
- Sole proprietor
- Yes
- Medicaid ID
- CA GR0021000
- Taxonomy
- Federal specialty code 174400000X (174400000X)
- Mailing address
- 1524 Mchenry Ave, Suite 515, Modesto, CA, 95350
- NPI first listed
- 2006-09-26
- NPI last updated
- 2012-05-29
This is when the NPI record was last certified, not a medical board exam.