Katie Lynn Topping, MD
Ophthalmology · Chula Vista
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Offices
- 5
Offices
5 locations · Eye Physicians Medical Surgical Center · Island Eye Specialists Apc · Faculty Physicians and Surgeons of Llusm · Southern California Permanente Medical Group · Marcus J Ko MD PLLC
Looking this up.
Hospitals listed: Riverside University Health System-Medical Center · Sharp Coronado Hospital and Hlthcr Ctr. 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. Topping’s office to ask if they take your plan before you enroll.
California Medical Board record
Licence A143601 · Current
Licensed to practise in California · since 2016 · expires 2028-07-31 · University of North Dakota School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Hospitals they work in
2 hospitals
These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.
- Riverside University Health System-Medical CenterMoreno Valley, CAAcute Care Hospital · Government - Local · Has an emergency department · Birthing-friendlyPart of Riverside University Health SystemPatients rate it 2 of 5 · 66% would definitely recommend itOverall rating: 3 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.232, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.157, Oct 2024 – Sep 2025
- Sharp Coronado Hospital and Hlthcr CtrCoronado, CAAcute Care Hospital · Proprietary · Has an emergency departmentPart of Sharp Healthcare, which runs 6 hospitalsPatients rate it 4 of 5 · 84% would definitely recommend itOverall rating: 4 of 5 starsNo measure marked better or worse than the national rate
See every measure and the patient survey for Riverside University Health System-Medical Center
Behind the star rating — Deaths: 0 better, 6 the same, 0 worse of 6 measures. Safety: 4 better, 3 the same, 0 worse of 7 measures. Readmissions: 0 better, 7 the same, 1 worse of 8 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.232 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.157 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.38 (0.38 to 2.38) · 932 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.93 (0.56 to 1.3) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 191.06 (136.87 to 245.25) · 59 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for COPD patientsComplications and deaths | 9.1 · 77 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 11.5 · 25 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 7.7 · 140 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 13.7 · 148 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 11.1 · 184 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.1 · 2,070 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.24 (0.02 to 0.46) · 4,158 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.35 (0.15 to 0.55) · 4,169 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.45 (1.15 to 5.76) · 582 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.6 (0 to 3.29) · 126 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 1.98 (0.38 to 3.58) · 580 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 9.8 (0.71 to 18.89) · 135 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 4.67 (0.57 to 8.78) · 125 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.67 (0.18 to 3.16) · 159 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.38 (0 to 1.09) · 3,702 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.1 · 48 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.517 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 1.484 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.896 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.404 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 15 · 46 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.1 · 303 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 7.1 · 162 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 1 · 164 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19 · 290 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 6 (3.8 to 9.1) · 36 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 11.9 (8.1 to 16.7) · 36 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.8 · 60 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 20.2 · 151 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.6 (9.3 to 17) · 127 cases | No different | Jan 2022 – Dec 2024 |
What patients said (416 patients answered, 10% of those asked)
| Cleanliness | 2 |
| Nurse communication | 2 |
| Doctor communication | 2 |
| Communication about medicines | 2 |
| Discharge information | 3 |
| Overall hospital rating | 3 |
| Quietness | 2 |
| Recommend hospital | 3 |
| Room was "always" clean | 63% |
| Nurses "always" communicated well | 73% |
| Doctors "always" communicated well | 74% |
| Staff "always" explained | 54% |
| Yes, staff "did" give patients this information | 85% |
| Yes, staff "did" give patients information about help after discharge | 86% |
| Doctors "always" explained things so they could understand | 69% |
| Doctors "always" listened carefully | 72% |
| Doctors "always" treated them with courtesy and respect | 82% |
| Patients who gave a rating of "9" or "10" (high) | 65% |
| Staff "always" explained new medications | 72% |
| Nurses "always" explained things so they could understand | 69% |
| Nurses "always" listened carefully | 69% |
| Nurses "always" treated them with courtesy and respect | 81% |
| "Always" quiet at night | 46% |
| "YES", patients would definitely recommend the hospital | 66% |
| Staff "always" explained possible side effects | 37% |
| Yes, staff "did" give patients information about possible symptoms | 84% |
See every measure and the patient survey for Sharp Coronado Hospital and Hlthcr Ctr
Behind the star rating — Deaths: 0 better, 5 the same, 0 worse of 5 measures. Safety: 0 better, 4 the same, 0 worse of 4 measures. Readmissions: 2 better, 4 the same, 1 worse of 7 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.03 (0 to 2.12) · 123 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1.22 (0.75 to 1.68) | No different | Jul 2022 – Jun 2024 |
| Death rate for COPD patientsComplications and deaths | 7.9 · 27 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 13.6 · 81 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 11.5 · 161 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 12.5 · 51 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.8 · 743 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.2 (0 to 0.43) · 1,404 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.26 (0.05 to 0.47) · 1,379 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.23 (0.69 to 5.77) · 222 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.67 (0 to 3.4) · 77 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.28 (0.56 to 3.99) · 201 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 9.1 (0 to 19.13) · 79 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.19 (0.86 to 9.51) · 77 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.75 (0.22 to 3.28) · 40 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 1.48 (0.36 to 2.6) · 1,040 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.9 · 88 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 1.654 | No different | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.416 | No different | Oct 2024 – Sep 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.4 · 104 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -4.6 · 81 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | -23.3 · 179 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 17 · 227 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.6 · 92 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 20.1 · 50 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.2 (8.9 to 16.5) · 214 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 1.1 (0.8 to 1.6) · 200 cases | No different | Jan 2024 – Dec 2024 |
What patients said (433 patients answered, 20% of those asked)
| Cleanliness | 5 |
| Nurse communication | 5 |
| Doctor communication | 3 |
| Communication about medicines | 4 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 4 |
| Recommend hospital | 5 |
| Room was "always" clean | 83% |
| Nurses "always" communicated well | 85% |
| Doctors "always" communicated well | 78% |
| Staff "always" explained | 65% |
| Yes, staff "did" give patients this information | 90% |
| Yes, staff "did" give patients information about help after discharge | 91% |
| Doctors "always" explained things so they could understand | 72% |
| Doctors "always" listened carefully | 76% |
| Doctors "always" treated them with courtesy and respect | 85% |
| Patients who gave a rating of "9" or "10" (high) | 81% |
| Staff "always" explained new medications | 77% |
| Nurses "always" explained things so they could understand | 82% |
| Nurses "always" listened carefully | 82% |
| Nurses "always" treated them with courtesy and respect | 91% |
| "Always" quiet at night | 62% |
| "YES", patients would definitely recommend the hospital | 84% |
| Staff "always" explained possible side effects | 53% |
| Yes, staff "did" give patients information about possible symptoms | 89% |
Original Medicare doctor bills
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Procedures Medicare counted
| Melanoma (skin cancer) excision | 1-10 | None |
Year by year
| 2018 | 105 | 169 | 74 | 1.40 | $105,128 | $12,942 |
| 2017 | 117 | 191 | 73 | 1.37 | $50,363 | $9,892 |
| 2016 | 32 | 39 | 70 | 1.58 | $16,419 | $2,474 |
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
2018: 2 services
| Short return visit (20+ min) | 50 | $2,857 | $44 |
| Return visit (30+ min) | 21 | $1,441 | $65 |
2017: 4 services
| Short return visit (20+ min) | 64 | $3,302 | $42 |
| Return visit (30+ min) | 21 | $1,247 | $59 |
| Exam of visual field with extended testing | 11 | $286 | $24 |
| Photography of content of eyes | 13 | $31 | $2 |
2016: 1 service
| Short return visit (20+ min) | 21 | $957 | $46 |
Drugs they prescribed that Part D paid
$204,071
Pharmacies billed $204,071 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
34 generic and 13 brand-name prescriptions · $204,071 in drug cost.
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.
| Erythromycin | 15 | $178 | $12 |
Year by year
| 2024 | 47 | 18 | None | 28% | $204,071 |
| 2023 | 25 | None | None | 44% | $261,894 |
| 2018 | 294 | 144 | 16% (46) | 20% | $6,146 |
| 2017 | 356 | 168 | 11% (39) | 27% | $12,492 |
| 2016 | 129 | 75 | None | 29% | $1,992 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2018: 6 drugs
| Neomycin-Polymyxin-Dexameth | 96 | $1,285 | $13 |
| Erythromycin | 36 | $381 | $11 |
| Methylprednisolone | 14 | $155 | $11 |
| Cephalexin | 21 | $122 | $6 |
| Acetaminophen-Codeine | 27 | $121 | $4 |
| Ondansetron Odt | 19 | $85 | $4 |
2017: 6 drugs
| Neomycin-Polymyxin-Dexameth | 154 | $2,159 | $14 |
| Erythromycin | 35 | $335 | $10 |
| Cephalexin | 26 | $171 | $7 |
| Hydrocodone-Acetaminophen | 21 | $101 | $5 |
| Ondansetron Odt | 13 | $67 | $5 |
| Acetaminophen-Codeine | 11 | $33 | $3 |
2016: 2 drugs
| Neomycin-Polymyxin-Dexameth | 61 | $994 | $16 |
| Erythromycin | 17 | $189 | $11 |
Money from drug and device companies
$64 in 2025
| 2025 | 1 | 3 | None | $64 |
| 2021 | 1 | 1 | None | $23 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Amgen | Tepezza | $64 | 3 payments
|
See all 3 published payments
| Amgen | Meals · 2025-12-16 | Tepezza | $15 |
| Amgen | Meals · 2025-11-18 | Tepezza | $23 |
| Amgen | Meals · 2025-07-16 | Tepezza | $25 |
See earlier years (2021)
2021: $23
| Carl Zeiss Meditec USA | Artevo 800 | $23 | 1 payment
|
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 85.2 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1215203534
- Licence
- CA A143601California A143601: Current · expires 2028-07-31
- Trained
- University of North Dakota School of Medicine, 2012
- Group
- Eye Physicians Medical Surgical Center · Island Eye Specialists Apc · Faculty Physicians and Surgeons of Llusm · Southern California Permanente Medical Group · Marcus J Ko MD PLLC
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207W00000X (207W00000X); Federal specialty code 207WX0200X (207WX0200X)
- Mailing address
- 5435 Reno Corporate Dr Ste 100, Reno, NV, 89511
- NPI first listed
- 2012-03-30
- NPI last updated
- 2026-03-27
- NPI record certified
- 2026-03-27
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.