Patrick S Corpuz, MD
Family Practice · Fontana
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location · Southern California Permanente Medical Group · 11,250 clinicians in this group
Looking this up.
Hospitals listed: Kaiser Foundation Hospital Fontana. That is not proof they admit you there this week.
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Corpuz’s office at (909) 427-5000 to ask if they take your plan before you enroll.
Hospitals they work in
1 hospital
These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.
- Kaiser Foundation Hospital Fontana/OntarioFontana, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Kaiser Permanente, which runs 41 hospitals in 3 statesPatients rate it 4 of 5 · 78% would definitely recommend itOverall rating: 3 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.377, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.103, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.234, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.378, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.345, Oct 2024 – Sep 2025
See every measure and the patient survey for Kaiser Foundation Hospital Fontana/Ontario
Behind the star rating — Deaths: 0 better, 2 the same, 0 worse of 2 measures. Safety: 3 better, 3 the same, 1 worse of 7 measures. Readmissions: 0 better, 2 the same, 1 worse of 3 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.377 | Better | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.103 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.234 | Better | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.378 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.345 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.25 (0.2 to 2.31) · 392 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.98 (0.57 to 1.38) | No different | Jul 2022 – Jun 2024 |
| Death rate for pneumonia patientsComplications and deaths | 16 · 31 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 15.8 · 413 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 4.2 · 6,015 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.19 (0 to 0.42) · 1,678 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.38 (0.17 to 0.59) · 1,799 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.49 (1.03 to 5.96) · 334 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.63 (0 to 3.34) · 106 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.39 (0.75 to 4.03) · 310 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 7.73 (0 to 16.98) · 104 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.78 (1.58 to 9.98) · 103 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 2.08 (0.56 to 3.6) · 73 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.56 (0 to 1.42) · 1,439 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.2 · 42 cases | None | Apr 2023 – Mar 2025 |
| SSI - Abdominal HysterectomyInfections | 0.88 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 13.4 · 429 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 21.6 · 915 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | -24.9 · 32 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19.1 · 929 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5 · 51 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 10.4 · 199 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 21.4 · 403 cases | None | Jul 2023 – Jun 2025 |
What patients said (1,560 patients answered, 19% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 4 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 4 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 82% |
| Doctors "always" communicated well | 80% |
| Staff "always" explained | 66% |
| Yes, staff "did" give patients this information | 89% |
| Yes, staff "did" give patients information about help after discharge | 90% |
| Doctors "always" explained things so they could understand | 75% |
| Doctors "always" listened carefully | 78% |
| Doctors "always" treated them with courtesy and respect | 85% |
| Patients who gave a rating of "9" or "10" (high) | 80% |
| Staff "always" explained new medications | 75% |
| Nurses "always" explained things so they could understand | 78% |
| Nurses "always" listened carefully | 80% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 62% |
| "YES", patients would definitely recommend the hospital | 78% |
| Staff "always" explained possible side effects | 56% |
| Yes, staff "did" give patients information about possible symptoms | 89% |
Medicaid work
$0 in 2024
Medicaid paid $0 for 59 billed services this clinician did in 2024, up to 19 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.
| SBSQ NURSING FACILITY CARE MOD MDM 30 MINUTES | 59 | $0 |
| 2024 | 59 | 1 | 19 | $0 |
| 2022 | 16 | 1 | 14 | $0 |
See the largest Medicaid services in earlier years
2022
| SBSQ NURSING FACILITY CARE MOD MDM 30 MINUTES | 16 | $0 |
Drugs they prescribed that Part D paid
$81,761
Pharmacies billed $81,761 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 6% of their Part D prescriptions (71 of 1,256) in 2024. Above the middle of the specialty; the typical family practice clinician is at 2%.
1,051 generic and 189 brand-name prescriptions · $81,761 in drug cost · 29 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.
| Eliquis | 18 | $12,976 | $721 |
| Spiriva Respimat | 15 | $4,646 | $310 |
| Jardiance | 20 | $3,735 | $187 |
| Pradaxa | 27 | $3,044 | $113 |
| Ursodiol | 14 | $2,817 | $201 |
See all 37 drugs
| Eliquis | 18 | $12,976 | $721 |
| Spiriva Respimat | 15 | $4,646 | $310 |
| Jardiance | 20 | $3,735 | $187 |
| Pradaxa | 27 | $3,044 | $113 |
| Ursodiol | 14 | $2,817 | $201 |
| Bisoprolol | 35 | $2,279 | $65 |
| Atorvastatin | 68 | $1,593 | $23 |
| Levetiracetam | 15 | $1,576 | $105 |
| Hydrocodone-Acetaminophen | 59 | $1,351 | $23 |
| Humulin R | 16 | $1,095 | $68 |
| Potassium Chloride | 46 | $1,017 | $22 |
| Hydralazine | 23 | $927 | $40 |
| Donepezil | 51 | $726 | $14 |
| Mirtazapine | 29 | $697 | $24 |
| Albuterol Sulfate Hfa | 12 | $617 | $51 |
| Baclofen | 12 | $582 | $49 |
| Gabapentin | 28 | $579 | $21 |
| Famotidine | 19 | $556 | $29 |
| Levothyroxine | 31 | $518 | $17 |
| Carvedilol | 23 | $517 | $22 |
| Pantoprazole | 20 | $474 | $24 |
| Furosemide | 44 | $463 | $11 |
| Clopidogrel | 16 | $453 | $28 |
| Omeprazole | 12 | $382 | $32 |
| Mupirocin | 12 | $377 | $31 |
| Nystatin | 15 | $354 | $24 |
| Losartan | 20 | $353 | $18 |
| Finasteride | 12 | $299 | $25 |
| Metformin | 15 | $294 | $20 |
| Tamsulosin | 11 | $262 | $24 |
| Memantine | 20 | $243 | $12 |
| Amlodipine Besylate | 16 | $237 | $15 |
| Lisinopril | 16 | $212 | $13 |
| Sertraline | 14 | $189 | $14 |
| Glipizide | 13 | $188 | $14 |
| Metoprolol | 12 | $124 | $10 |
| Warfarin | 17 | $64 | $4 |
Year by year
| 2024 | 1,256 | 220 | 6% (71) | 15% | $81,761 |
| 2023 | 1,078 | 242 | None | 13% | $52,655 |
| 2022 | 533 | 145 | 4% (20) | None | $33,663 |
| 2021 | 432 | 105 | None | None | $15,602 |
| 2020 | 444 | 90 | 3% (15) | None | $21,256 |
| 2019 | 258 | 52 | 0% (0) | None | $18,681 |
| 2018 | 66 | 26 | None | None | $4,139 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 27 drugs
| Spiriva Respimat | 20 | $8,185 | $409 |
| Eliquis | 25 | $7,126 | $285 |
| Pradaxa | 36 | $4,196 | $117 |
| Ursodiol | 13 | $2,587 | $199 |
| Donepezil | 134 | $1,764 | $13 |
| Levetiracetam | 15 | $1,498 | $100 |
| Bisoprolol | 13 | $1,417 | $109 |
| Memantine | 122 | $1,400 | $11 |
| Atorvastatin | 50 | $1,103 | $22 |
| Gabapentin | 25 | $659 | $26 |
| Mirtazapine | 45 | $609 | $14 |
| Levothyroxine | 25 | $462 | $18 |
| Famotidine | 14 | $436 | $31 |
| Sertraline | 37 | $436 | $12 |
| Omeprazole | 14 | $424 | $30 |
| Duloxetine | 15 | $422 | $28 |
| Carvedilol | 18 | $419 | $23 |
| Furosemide | 31 | $397 | $13 |
| Trazodone | 30 | $370 | $12 |
| Potassium Chloride | 17 | $351 | $21 |
| Quetiapine | 29 | $313 | $11 |
| Buspirone | 32 | $271 | $8 |
| Lansoprazole | 11 | $203 | $18 |
| Lisinopril | 15 | $172 | $11 |
| Fluoxetine | 13 | $159 | $12 |
| Losartan | 11 | $132 | $12 |
| Escitalopram | 11 | $130 | $12 |
2022: 16 drugs
| Spiriva Respimat | 11 | $3,642 | $331 |
| Pradaxa | 12 | $2,417 | $201 |
| Humulin R | 15 | $911 | $61 |
| Donepezil | 51 | $657 | $13 |
| Potassium Chloride | 18 | $551 | $31 |
| Mirtazapine | 21 | $472 | $22 |
| Memantine | 37 | $418 | $11 |
| Atorvastatin | 24 | $393 | $16 |
| Gabapentin | 16 | $335 | $21 |
| Sertraline | 19 | $321 | $17 |
| Furosemide | 24 | $317 | $13 |
| Hydrocodone-Acetaminophen | 18 | $297 | $17 |
| Trazodone | 13 | $165 | $13 |
| Losartan | 15 | $165 | $11 |
| Alendronate | 11 | $126 | $11 |
| Escitalopram | 12 | $101 | $8 |
2021: 8 drugs
| Atorvastatin | 35 | $455 | $13 |
| Gabapentin | 15 | $295 | $20 |
| Losartan | 24 | $279 | $12 |
| Pantoprazole | 13 | $185 | $14 |
| Lisinopril | 14 | $149 | $11 |
| Amlodipine Besylate | 12 | $140 | $12 |
| Omeprazole | 11 | $133 | $12 |
| Simvastatin | 11 | $128 | $12 |
2020: 10 drugs
| Atorvastatin | 29 | $485 | $17 |
| Gabapentin | 17 | $437 | $26 |
| Losartan | 24 | $291 | $12 |
| Baclofen | 11 | $260 | $24 |
| Hydrocodone-Acetaminophen | 14 | $215 | $15 |
| Amlodipine Besylate | 18 | $199 | $11 |
| Lisinopril | 15 | $182 | $12 |
| Atenolol | 11 | $118 | $11 |
| Ibuprofen | 11 | $108 | $10 |
| Famotidine | 11 | $87 | $8 |
2019: 3 drugs
| Lisinopril | 14 | $197 | $14 |
| Furosemide | 12 | $172 | $14 |
| Losartan | 11 | $115 | $10 |
Money from drug and device companies
$97 in 2023
A payment is not proof that care is biased.
| Eisai | None | $97 | 1 payment
|
See the published payment
| Eisai | Meals · 2023-08-10 | None | $97 |
Professional record
- NPI
- 1871097196
- Trained
- University of Wisconsin School of Medicine, 2018
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Student in a training program (390200000X)
- Mailing address
- 276 International Cir Bldg 1, San Jose, CA, 95119
- NPI first listed
- 2018-03-21
- NPI last updated
- 2021-12-13
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.