Michael Chavarria, MD
Anesthesiology · Laguna Beach
- 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
- 2
Offices
2 locations · Western Anesthesia Medical Associates Inc · 49 clinicians in this group
Hospitals listed: Providence Mission Hospital. 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. Chavarria’s office to ask if they take your plan before you enroll.
California Medical Board record
Licence A182431 · Current
Licensed to practise in California · since 2022 · expires 2028-09-30 · Western Michigan University Homer Stryker M.D. 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.
- Providence Mission HospitalMission Viejo, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Providence, which runs 54 hospitals in 7 statesPatients rate it 3 of 5 · 76% would definitely recommend itOverall rating: 5 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.311, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.396, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.142, Oct 2024 – Sep 2025Better than the national rate — Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies): 10.4 (8.3 to 12.9) · 3,901 cases, Jan 2022 – Dec 2024
See every measure and the patient survey for Providence Mission Hospital
Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 3 better, 4 the same, 0 worse of 7 measures. Readmissions: 2 better, 9 the same, 0 worse of 11 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 | 0.311 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.396 | Better | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.142 | Better | Oct 2024 – Sep 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 10.4 (8.3 to 12.9) · 3,901 cases | Better | Jan 2022 – Dec 2024 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.29 (0.4 to 2.18) · 1,814 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.92 (0.66 to 1.19) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 163.98 (122.65 to 205.3) · 165 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.8 · 56 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 9.7 · 80 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 10.2 · 273 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 8.8 · 434 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 14.7 · 962 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 11 · 486 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.6 · 4,977 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.22 (0.03 to 0.41) · 8,625 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.29 (0.11 to 0.47) · 8,755 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 2.82 (1.09 to 4.54) · 2,413 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 2.24 (0.77 to 3.71) · 932 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.26 (0.9 to 3.61) · 2,222 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 10.47 (5.01 to 15.93) · 872 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.72 (2.6 to 8.84) · 861 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.57 (0.13 to 3.02) · 610 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.21 (0 to 0.74) · 7,316 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.8 · 58 cases | None | Apr 2023 – Mar 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.479 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 13.9 · 354 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.4 · 649 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 4.8 · 265 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 35.8 · 486 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 5.5 · 994 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 18.2 · 1,371 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 4.8 (3.4 to 6.8) · 209 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 11.1 (8.5 to 14.3) · 209 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.3 · 65 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.5 · 65 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.2 · 127 cases | None | Jul 2023 – Jun 2025 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.7 to 1.2) · 791 cases | No different | Jan 2024 – Dec 2024 |
What patients said (474 patients answered, 26% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 3 |
| Communication about medicines | 2 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 4 |
| Room was "always" clean | 73% |
| Nurses "always" communicated well | 78% |
| Doctors "always" communicated well | 76% |
| Staff "always" explained | 57% |
| Yes, staff "did" give patients this information | 87% |
| Yes, staff "did" give patients information about help after discharge | 88% |
| Doctors "always" explained things so they could understand | 74% |
| Doctors "always" listened carefully | 73% |
| Doctors "always" treated them with courtesy and respect | 81% |
| Patients who gave a rating of "9" or "10" (high) | 75% |
| Staff "always" explained new medications | 72% |
| Nurses "always" explained things so they could understand | 74% |
| Nurses "always" listened carefully | 77% |
| Nurses "always" treated them with courtesy and respect | 85% |
| "Always" quiet at night | 46% |
| "YES", patients would definitely recommend the hospital | 76% |
| Staff "always" explained possible side effects | 42% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$46,552
Medicare paid this office $46,552 for 219 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Anesthesia for extensive surgery on spine | 11 | $6,113 | $556 |
| Anesthesia for procedure for total knee joint replacement | 17 | $4,971 | $292 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 26 | $2,882 | $107 |
| Anesthesia for other procedure on large bowel using an endoscope | 26 | $2,735 | $105 |
| Anesthesia for exam of colon using an endoscope | 22 | $2,461 | $107 |
See all 8 services
| Anesthesia for extensive surgery on spine | 11 | $6,113 | $556 |
| Anesthesia for procedure for total knee joint replacement | 17 | $4,971 | $292 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 26 | $2,882 | $107 |
| Anesthesia for other procedure on large bowel using an endoscope | 26 | $2,735 | $105 |
| Anesthesia for exam of colon using an endoscope | 22 | $2,461 | $107 |
| Anesthesia for procedure on small and large bowel using an endoscope | 16 | $2,125 | $133 |
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 15 | $771 | $51 |
| Insertion of artery tube for blood sampling or infusion through skin | 11 | $388 | $35 |
Who their Medicare patients are
219 Original Medicare patients in 2024. Average age 76 · Under 65 5% · 85 and older 19% · Women 53% · Also on Medicaid 12% · Health risk score 1.43. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 75% · Coronary heart disease 32% · Diabetes 30% · Chronic kidney disease 30% · Atrial fibrillation 26% · Depression 25% · Cancer 21% · Heart failure 18% · COPD 14% · Dementia 10% · Stroke 10%.
The office billed $457,833, Medicare allowed $58,021 and paid $46,552; for 260 services of 56 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 | 219 | 260 | 76 | 1.43 | $457,833 | $46,552 |
| 2023 | 122 | 128 | 74 | 1.69 | $191,780 | $23,386 |
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: 3 services
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 20 | $2,449 | $122 |
| Anesthesia for procedure on small and large bowel using an endoscope | 11 | $1,520 | $138 |
| Anesthesia for exam of colon using an endoscope | 12 | $1,454 | $121 |
Money from drug and device companies
$21 in 2025
| 2025 | 1 | 1 | None | $21 |
| 2024 | 1 | 1 | None | $20 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Celltrion USA | Vegzelma | $21 | 1 payment
|
See the published payment
| Celltrion USA | Meals · 2025-07-16 | Vegzelma | $21 |
See earlier years (2024)
2024: $20
| Lilly USA | Omvoh | $20 | 1 payment
|
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 76.5 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1174183321
- Licence
- CA A182431, MI 4351045624California A182431: Current · expires 2028-09-30
- Trained
- Western Michigan Un Homer Stryker School of Med, 2019
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207L00000X (207L00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2019-06-19
- NPI last updated
- 2024-04-08
- NPI record certified
- 2024-04-08
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 300 Pasteur Dr Rm Hc 435, Stanford, CA, 94305