Clarissa Sherrill Chan, PA
Physician Assistant · San Diego
- Medicare standing
- 1 flag on the record
- Listed below.
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
On the public record
- California licence: Delinquent
Offices
1 location · UC San Diego Health Community Group · 109 clinicians in this group
Looking this up.
Hospitals listed: UC San Diego Health Hillcrest - Hillcrest Med 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 Clarissa Sherrill Chan’s office at (800) 926-8273 to ask if they take your plan before you enroll.
California Medical Board record
Licence C54392 · Delinquent
Licence status: Delinquent · since 2010 · expires 2024-02-29 · Case Western Reserve University School of Medicine.
License renewal fee has not been paid. No practice is permitted.
Matched on the licence number without its letter prefix; check the name before relying on it.
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.
- UC San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of University of California Health, which runs 12 hospitalsHome of Moores Comprehensive Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 3 of 5 · 75% would definitely recommend itOverall rating: 5 of 5 starsBetter than the national rate — Death rate among surgical inpatients with serious treatable complications: 105.39 (74.34 to 136.44) · 381 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.597, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.618, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.375, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.376, Oct 2024 – Sep 2025
See every measure and the patient survey for UC San Diego Health Hillcrest - Hillcrest Med Ctr
Behind the star rating — Deaths: 6 better, 2 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 1 better, 8 the same, 2 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 105.39 (74.34 to 136.44) · 381 cases | Better | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.597 | Better | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.618 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.375 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.376 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.83 (0.11 to 1.54) · 3,862 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1.02 (0.84 to 1.2) | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.4 · 130 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6.2 · 116 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 9.1 · 183 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 7.8 · 510 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 11 · 696 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 9.4 · 435 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.1 · 5,739 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.15 (0 to 0.32) · 12,387 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.27 (0.1 to 0.44) · 13,596 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 4.59 (3.24 to 5.94) · 4,389 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.04 (0 to 2.12) · 2,419 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.26 (1.23 to 3.29) · 4,116 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 9.93 (6.61 to 13.25) · 2,232 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 7.31 (5.24 to 9.38) · 2,410 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 2.32 (1.07 to 3.56) · 1,286 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.38 (0.02 to 0.75) · 11,838 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.5 · 181 cases | None | Apr 2023 – Mar 2025 |
| MRSA BacteremiaInfections | 0.716 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.672 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.5 · 302 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 19.3 · 891 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 3.8 · 216 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 5.9 · 620 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 12 · 731 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 15.7 · 946 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.9 (4.8 to 7) · 1,507 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 12.3 (10.7 to 14) · 1,507 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 7.1 · 191 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.7 · 177 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.7 · 204 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 10.4 (8.5 to 13) · 4,116 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.7 to 1) · 2,130 cases | No different | Jan 2024 – Dec 2024 |
What patients said (3,680 patients answered, 16% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 3 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 4 |
| Room was "always" clean | 66% |
| Nurses "always" communicated well | 79% |
| Doctors "always" communicated well | 79% |
| Staff "always" explained | 61% |
| Yes, staff "did" give patients this information | 88% |
| Yes, staff "did" give patients information about help after discharge | 87% |
| Doctors "always" explained things so they could understand | 75% |
| Doctors "always" listened carefully | 78% |
| Doctors "always" treated them with courtesy and respect | 86% |
| Patients who gave a rating of "9" or "10" (high) | 73% |
| Staff "always" explained new medications | 73% |
| Nurses "always" explained things so they could understand | 75% |
| Nurses "always" listened carefully | 75% |
| Nurses "always" treated them with courtesy and respect | 86% |
| "Always" quiet at night | 49% |
| "YES", patients would definitely recommend the hospital | 75% |
| Staff "always" explained possible side effects | 48% |
| Yes, staff "did" give patients information about possible symptoms | 88% |
Original Medicare doctor bills
$10,695
Medicare paid this office $10,695 for 72 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Return visit (30+ min) | 39 | $4,358 | $85 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 11 | $115 | $10 |
Who their Medicare patients are
72 Original Medicare patients in 2024. Average age 72 · Women 57% · Also on Medicaid 17% · Health risk score 1.00. At or below the middle of the specialty; the typical physician assistant clinician is at 1.31.
Conditions among them: High blood pressure 63% · Diabetes 25% · Depression 19% · Coronary heart disease 15% · Chronic kidney disease 15% · Stroke 15%.
The office billed $49,537, Medicare allowed $13,702 and paid $10,695; for 128 services of 23 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 | 72 | 128 | 72 | 1.00 | $49,537 | $10,695 |
| 2023 | 194 | 315 | 72 | 1.41 | $91,299 | $18,680 |
| 2022 | 332 | 599 | 72 | 1.17 | $138,781 | $34,408 |
| 2021 | 169 | 269 | 71 | 1.12 | $59,817 | $15,406 |
| 2020 | 214 | 228 | 72 | 0.87 | $31,136 | $12,883 |
| 2019 | 145 | 254 | 68 | 1.85 | $100,575 | $13,590 |
| 2018 | 180 | 331 | 70 | 1.73 | $106,407 | $19,793 |
| 2017 | 21 | 35 | 71 | 1.89 | $9,659 | $1,677 |
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: 8 services
| Short return visit (20+ min) | 81 | $4,520 | $52 |
| New patient visit (30+ min) | 52 | $3,051 | $59 |
| New patient visit (60+ min) | 16 | $2,265 | $142 |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | 40 | $2,011 | $50 |
| Detection test by nucleic acid for multiple types influenza virus | 17 | $1,596 | $94 |
| Return visit (30+ min) | 19 | $1,384 | $73 |
| Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) | 16 | $275 | $16 |
| Automated urinalysis test | 18 | $46 | $2 |
2022: 8 services
| Short return visit (20+ min) | 131 | $10,281 | $65 |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | 140 | $7,674 | $50 |
| New patient visit (30+ min) | 92 | $6,759 | $73 |
| Detection test by nucleic acid for multiple types influenza virus | 29 | $3,011 | $94 |
| Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 19 | $1,335 | $70 |
| Administration of influenza virus vaccine | 21 | $582 | $28 |
| Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) | 19 | $325 | $16 |
| Automated urinalysis test | 26 | $60 | $2 |
2021: 3 services
| Short return visit (20+ min) | 89 | $7,347 | $70 |
| New patient visit (30+ min) | 72 | $5,838 | $81 |
| Automated urinalysis test | 31 | $74 | $2 |
2020: 3 services
| Influenza vaccine split virus, preservative free | 131 | $7,964 | $61 |
| Short return visit (20+ min) | 41 | $1,984 | $45 |
| Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage | 11 | $215 | $20 |
2019: 6 services
| Emergency department visit with high level of medical decision making | 46 | $5,650 | $123 |
| Emergency department visit with moderate level of medical decision making | 39 | $3,432 | $84 |
| Emergency department visit with low level of medical decision making | 36 | $1,673 | $45 |
| Short return visit (20+ min) | 12 | $540 | $45 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 32 | $207 | $6 |
| X-ray of chest, 1 view | 23 | $162 | $7 |
2018: 5 services
| Emergency department visit with high level of medical decision making | 57 | $8,023 | $141 |
| Emergency department visit with moderate level of medical decision making | 44 | $4,338 | $94 |
| Emergency department visit with low level of medical decision making | 76 | $3,738 | $49 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 38 | $278 | $7 |
| X-ray of chest, 1 view | 27 | $215 | $8 |
Medicaid work
$694 in 2020
Medicaid paid $694 for 14 billed services this clinician did in 2020, up to 14 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.
| Service | 14 | $694 |
| 2020 | 14 | 1 | 14 | $694 |
| 2019 | 1,841 | 11 | 84 | $91,480 |
| 2018 | 136 | 1 | 19 | $2,404 |
See the largest Medicaid services in earlier years
2019
| Miscellaneous therapeutic items and supplies, retail purchases, not otherwise classified; identify product in "remarks" | 155 | $40,739 |
| Service | 762 | $39,177 |
| COLLECTION VENOUS BLOOD VENIPUNCTURE | 55 | $5,048 |
| Unclassified drugs | 112 | $2,421 |
| Radiologic examination, chest; single view | 34 | $841 |
| Electrocardiogram, routine ECG with at least 12 leads; tracing only, without interpretation and report | 68 | $836 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) | 253 | $724 |
| COMPREHENSIVE METABOLIC PANEL | 143 | $690 |
| Gonadotropin, chorionic (hCG); quantitative | 84 | $592 |
| ASSAY OF LIPASE | 80 | $282 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; automated, with microscopy | 95 | $131 |
2018
| Service | 136 | $2,404 |
Drugs they prescribed that Part D paid
$50,269
Pharmacies billed $50,269 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
366 generic and fewer than 11 brand-name prescriptions · $50,269 in drug cost · 25 antibiotic prescriptions to 15 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 | 16 | $11,202 | $700 |
| Gabapentin | 34 | $418 | $12 |
| Rosuvastatin | 27 | $378 | $14 |
| Metoprolol | 16 | $273 | $17 |
| Levothyroxine | 17 | $161 | $9 |
See all 6 drugs
| Eliquis | 16 | $11,202 | $700 |
| Gabapentin | 34 | $418 | $12 |
| Rosuvastatin | 27 | $378 | $14 |
| Metoprolol | 16 | $273 | $17 |
| Levothyroxine | 17 | $161 | $9 |
| Atorvastatin | 15 | $154 | $10 |
Year by year
| 2024 | 435 | 166 | None | None | $50,269 |
| 2023 | 287 | 197 | 0% (0) | 11% | $10,131 |
| 2022 | 241 | 172 | 0% (0) | None | $6,346 |
| 2021 | 143 | 108 | 0% (0) | None | $2,188 |
| 2020 | 49 | 33 | None | None | $620 |
| 2019 | 88 | 71 | 16% (14) | None | $827 |
| 2018 | 116 | 81 | 19% (22) | None | $1,163 |
| 2017 | 11 | None | 0% (0) | 0% | $351 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 7 drugs
| Albuterol Sulfate Hfa | 19 | $422 | $22 |
| Gabapentin | 16 | $356 | $22 |
| Fluticasone Propionate | 20 | $262 | $13 |
| Cephalexin | 31 | $243 | $8 |
| Paxlovid (Eua) | 21 | $212 | $10 |
| Amoxicillin-Clavulanate Potass | 11 | $131 | $12 |
| Azithromycin | 13 | $63 | $5 |
2022: 5 drugs
| Fluticasone Propionate | 39 | $398 | $10 |
| Nitrofurantoin Mono-Macro | 19 | $215 | $11 |
| Cephalexin | 28 | $178 | $6 |
| Amoxicillin-Clavulanate Potass | 14 | $173 | $12 |
| Azithromycin | 18 | $131 | $7 |
2021: 3 drugs
| Fluticasone Propionate | 12 | $106 | $9 |
| Cephalexin | 20 | $102 | $5 |
| Azithromycin | 13 | $81 | $6 |
2019: 1 drug
| Cephalexin | 23 | $150 | $7 |
2018: 3 drugs
| Cephalexin | 27 | $244 | $9 |
| Hydrocodone-Acetaminophen | 17 | $72 | $4 |
| Ibuprofen | 11 | $36 | $3 |
Professional record
- NPI
- 1356876064
- Licence
- CA 54392California C54392: Delinquent · expires 2024-02-29
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Physician assistant (363A00000X)
- Mailing address
- Po Box 232410, San Diego, CA, 92193
- NPI first listed
- 2017-05-01
- NPI last updated
- 2020-12-11
- NPI record certified
- 2020-12-11
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 200 W Arbor Dr, San Diego, CA, 92103 · 889 Pippin Dr, Sunnyvale, CA, 94087