Robert T Kwak, MD
Emergency Medicine · Modesto
- 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 · Permanente Medical Group Inc · 10,928 clinicians in this group
Hospitals listed: Kaiser Foundation Hospital Manteca. 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. Kwak’s office at (209) 735-5000 to ask if they take your plan before you enroll.
California Medical Board record
Licence A127352 · Current
Licensed to practise in California · since 2013 · expires 2027-02-28 · University of Miami School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
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 MantecaManteca, 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 3 of 5 · 73% would definitely recommend itOverall rating: 4 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.172, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.303, Oct 2024 – Sep 2025
See every measure and the patient survey for Kaiser Foundation Hospital Manteca
Behind the star rating — Deaths: 0 better, 1 the same, 0 worse of 1 measures. Safety: 2 better, 4 the same, 0 worse of 6 measures. Readmissions: 0 better, 1 the same, 0 worse of 1 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 | 0.172 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.303 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.3 (0.23 to 2.38) · 148 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.93 (0.47 to 1.39) | No different | Jul 2022 – Jun 2024 |
| Death rate for stroke patientsComplications and deaths | 14 · 128 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 4.6 · 2,759 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.27 (0.04 to 0.51) · 723 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.27 (0.05 to 0.48) · 771 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.74 (1.19 to 6.29) · 143 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.66 (0 to 3.38) · 28 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.25 (0.55 to 3.95) · 130 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 8.31 (0 to 17.9) · 33 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.1 (0.81 to 9.38) · 33 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.74 (0.22 to 3.26) · 42 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.43 (0 to 1.53) · 576 cases | No different | Jul 2022 – Jun 2024 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.56 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.616 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.53 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 13.7 · 205 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.3 · 662 cases | None | Jul 2023 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19.3 · 472 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 22.2 · 277 cases | None | Jul 2023 – Jun 2025 |
What patients said (1,942 patients answered, 18% of those asked)
| Cleanliness | 4 |
| Nurse communication | 3 |
| Doctor communication | 3 |
| Communication about medicines | 2 |
| Discharge information | 4 |
| Overall hospital rating | 3 |
| Quietness | 3 |
| Recommend hospital | 4 |
| Room was "always" clean | 73% |
| Nurses "always" communicated well | 75% |
| Doctors "always" communicated well | 77% |
| Staff "always" explained | 59% |
| Yes, staff "did" give patients this information | 87% |
| Yes, staff "did" give patients information about help after discharge | 89% |
| Doctors "always" explained things so they could understand | 73% |
| Doctors "always" listened carefully | 75% |
| Doctors "always" treated them with courtesy and respect | 83% |
| Patients who gave a rating of "9" or "10" (high) | 71% |
| Staff "always" explained new medications | 73% |
| Nurses "always" explained things so they could understand | 70% |
| Nurses "always" listened carefully | 73% |
| Nurses "always" treated them with courtesy and respect | 83% |
| "Always" quiet at night | 52% |
| "YES", patients would definitely recommend the hospital | 73% |
| Staff "always" explained possible side effects | 45% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$991
Medicare paid this office $991 for 12 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Emergency department visit with moderate level of medical decision making | 11 | $959 | $87 |
Who their Medicare patients are
12 Original Medicare patients in 2024. Average age 66 · Health risk score 2.52. Above the middle of the specialty; the typical emergency medicine clinician is at 2.01.
The office billed $7,287, Medicare allowed $1,457 and paid $991; for 13 services of 3 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 | 12 | 13 | 66 | 2.52 | $7,287 | $991 |
| 2022 | 12 | 12 | 65 | 2.29 | $4,604 | $697 |
| 2019 | 18 | 19 | 67 | 2.24 | $8,110 | $1,330 |
| 2018 | 159 | 172 | 73 | 2.16 | $87,276 | $18,621 |
| 2017 | 169 | 178 | 75 | 2.11 | $73,132 | $16,961 |
| 2016 | 345 | 387 | 74 | 2.17 | $145,102 | $34,895 |
| 2015 | 316 | 367 | 73 | 1.94 | $141,554 | $36,973 |
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
2019: 1 service
| Emergency department visit with moderate level of medical decision making | 15 | $1,261 | $79 |
2018: 2 services
| Emergency department visit with high level of medical decision making | 82 | $11,750 | $142 |
| Emergency department visit with moderate level of medical decision making | 53 | $4,403 | $80 |
2017: 4 services
| Emergency department visit with high level of medical decision making | 71 | $9,530 | $132 |
| Emergency department visit with moderate level of medical decision making | 74 | $6,195 | $84 |
| Emergency department visit with low level of medical decision making | 14 | $459 | $33 |
| Emergency department visit with straightforward medical decision making | 11 | $266 | $24 |
2016: 4 services
| Emergency department visit with high level of medical decision making | 145 | $19,559 | $131 |
| Emergency department visit with moderate level of medical decision making | 117 | $10,538 | $87 |
| Emergency department visit with low level of medical decision making | 52 | $2,293 | $43 |
| Emergency department visit with straightforward medical decision making | 33 | $954 | $29 |
2015: 4 services
| Emergency department visit with high level of medical decision making | 127 | $18,905 | $143 |
| Emergency department visit with moderate level of medical decision making | 120 | $11,623 | $95 |
| Emergency department visit with low level of medical decision making | 59 | $3,006 | $50 |
| Emergency department visit with straightforward medical decision making | 23 | $727 | $32 |
Medicaid work
$2,186 in 2023
Medicaid paid $2,186 for 98 billed services this clinician did in 2023, 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.
| EMERGENCY DEPARTMENT VISIT STRAIGHTFORWARD MDM | 98 | $2,186 |
| 2023 | 98 | 1 | 19 | $2,186 |
| 2022 | 27 | 1 | 14 | $1,348 |
| 2021 | 17 | 1 | 17 | $663 |
| 2020 | 27 | 2 | 14 | $567 |
| 2019 | 42 | 1 | 15 | $1,626 |
| 2018 | 46 | 2 | 18 | $988 |
See the largest Medicaid services in earlier years
2022
| EMERGENCY DEPT VISIT MOD MDM | 27 | $1,348 |
2021
| EMERGENCY DEPT VISIT MOD MDM | 17 | $663 |
2020
| EMERGENCY DEPT VISIT MOD MDM | 14 | $472 |
| EMERGENCY DEPARTMENT VISIT STRAIGHTFORWARD MDM | 13 | $95 |
2019
| EMERGENCY DEPT VISIT MOD MDM | 42 | $1,626 |
2018
| EMERGENCY DEPT VISIT MOD MDM | 33 | $915 |
| EMERGENCY DEPARTMENT VISIT STRAIGHTFORWARD MDM | 13 | $73 |
Drugs they prescribed that Part D paid
$5,310
Pharmacies billed $5,310 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 14% of their Part D prescriptions (25 of 177) in 2024. Above the middle of the specialty; the typical emergency medicine clinician is at 12%.
148 generic and fewer than 11 brand-name prescriptions · $5,310 in drug cost · 29 antibiotic prescriptions to 23 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.
| Albuterol Sulfate Hfa | 13 | $211 | $16 |
| Fluticasone Propionate | 11 | $175 | $16 |
| Ondansetron Odt | 19 | $114 | $6 |
| Oxycodone | 13 | $79 | $6 |
Year by year
| 2024 | 177 | 89 | 14% (25) | None | $5,310 |
| 2023 | 197 | 112 | 19% (37) | None | $4,018 |
| 2022 | 117 | 77 | 21% (24) | None | $1,991 |
| 2021 | 61 | 47 | 26% (16) | None | $1,037 |
| 2020 | 78 | 46 | 27% (21) | None | $1,061 |
| 2019 | 153 | 109 | 24% (36) | 14% | $4,445 |
| 2018 | 188 | 133 | 21% (39) | 13% | $7,291 |
| 2017 | 152 | 106 | 22% (33) | 9% | $2,826 |
| 2016 | 174 | 131 | 26% (46) | 9% | $3,851 |
| 2015 | 209 | 148 | 19% (40) | None | $3,579 |
| 2014 | 152 | 97 | 20% (30) | 13% | $3,415 |
| 2013 | 19 | 11 | None | None | $568 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 6 drugs
| Albuterol Sulfate Hfa | 12 | $200 | $17 |
| Fluticasone Propionate | 15 | $200 | $13 |
| Ibuprofen | 25 | $192 | $8 |
| Hydrocodone-Acetaminophen | 23 | $154 | $7 |
| Prednisone | 12 | $82 | $7 |
| Oxycodone | 12 | $73 | $6 |
2022: 4 drugs
| Albuterol Sulfate Hfa | 12 | $193 | $16 |
| Hydrocodone-Acetaminophen | 23 | $168 | $7 |
| Cephalexin | 12 | $148 | $12 |
| Ondansetron Odt | 12 | $75 | $6 |
2021: 1 drug
| Hydrocodone-Acetaminophen | 14 | $111 | $8 |
2020: 1 drug
| Hydrocodone-Acetaminophen | 20 | $170 | $8 |
2019: 3 drugs
| Hydrocodone-Acetaminophen | 34 | $241 | $7 |
| Fluticasone Propionate | 18 | $233 | $13 |
| Ondansetron Odt | 13 | $116 | $9 |
2018: 3 drugs
| Hydrocodone-Acetaminophen | 34 | $243 | $7 |
| Ondansetron Odt | 22 | $195 | $9 |
| Ciprofloxacin | 14 | $135 | $10 |
2017: 3 drugs
| Hydrocodone-Acetaminophen | 30 | $330 | $11 |
| Ondansetron Odt | 20 | $236 | $12 |
| Cephalexin | 12 | $148 | $12 |
2016: 3 drugs
| Hydrocodone-Acetaminophen | 41 | $415 | $10 |
| Cephalexin | 18 | $190 | $11 |
| Ondansetron Odt | 20 | $185 | $9 |
2015: 5 drugs
| Hydrocodone-Acetaminophen | 35 | $335 | $10 |
| Cephalexin | 19 | $225 | $12 |
| Ondansetron Odt | 17 | $187 | $11 |
| Ciprofloxacin | 13 | $120 | $9 |
| Prednisone | 15 | $89 | $6 |
2014: 3 drugs
| Hydrocodone-Acetaminophen | 23 | $248 | $11 |
| Ondansetron Odt | 15 | $198 | $13 |
| Prednisone | 17 | $128 | $8 |
Money from drug and device companies
$1,231 in 2021
A payment is not proof that care is biased.
| Biohaven Pharmaceuticals | Nurtec Odt | $1,231 | 2 payments
|
See all 2 published payments
| Biohaven Pharmaceuticals | Consulting · 2021-08-21 | Nurtec Odt | $1,200 |
| Biohaven Pharmaceuticals | Travel · 2021-08-21 | Nurtec Odt | $31 |
Professional record
- NPI
- 1588963243
- Licence
- CA A127352California A127352: Current · expires 2027-02-28
- Trained
- University of Miami, Lm Miller School of Medicine, 2011
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207P00000X (207P00000X)
- Mailing address
- Po Box 276950, Sacramento, CA, 95827
- NPI first listed
- 2011-03-21
- NPI last updated
- 2026-09-14
- NPI record certified
- 2026-09-14
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 2410 Fire Mesa St, Las Vegas, NV, 89128
This office lists an electronic records connection.