Chou Yang, MD | UniHealth

Offices

4 locations · Regional Anesthesia Associates Inc · Excelle Anesthesia Services Inc · Community Foundation Medical Group · County of Santa Clara

Looking this up.

Hospitals listed: Kern Medical Center · Mercy 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. Yang’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence A102475 · Current

Licensed to practise in California · since 2008 · expires 2027-11-30 · Stanford University 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.

Kern Medical CenterBakersfield, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPatients rate it 2 of 5 · 60% would definitely recommend it
Overall rating: 1 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.3, Oct 2024 – Sep 2025
Mercy HospitalBakersfield, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of CommonSpirit Health, which runs 145 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend it
Overall rating: 3 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.161, Oct 2024 – Sep 2025

See every measure and the patient survey for Kern Medical Center

Behind the star rating — Deaths: 0 better, 4 the same, 0 worse of 4 measures. Safety: 1 better, 6 the same, 0 worse of 7 measures. Readmissions: 0 better, 7 the same, 0 worse of 7 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

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Every scored measure at Kern Medical Center

Central Line Associated Bloodstream Infection (ICU + select Wards)Infections	0	Better	Oct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections	0.3	Better	Oct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths	1.77 (0.73 to 2.82) · 318 cases	No different	Jul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths	1.01 (0.58 to 1.43)	No different	Jul 2022 – Jun 2024
Death rate for heart failure patientsComplications and deaths	11.5 · 26 cases	None	Jul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths	17.7 · 37 cases	None	Jul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths	13.1 · 48 cases	None	Jul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths	4.4 · 436 cases	None	Jul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths	0.2 (0 to 0.43) · 1,854 cases	No different	Jul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths	0.26 (0.04 to 0.47) · 1,749 cases	No different	Jul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths	4.19 (1.78 to 6.59) · 415 cases	No different	Jul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths	1.65 (0 to 3.37) · 104 cases	No different	Jul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths	2.37 (0.74 to 4.01) · 418 cases	No different	Jul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths	10.6 (1.14 to 20.06) · 118 cases	No different	Jul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths	5.79 (1.58 to 9.99) · 106 cases	No different	Jul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths	1.69 (0.19 to 3.2) · 79 cases	No different	Jul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths	0.33 (0 to 1.29) · 1,271 cases	No different	Jul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections	1.02	No different	Oct 2024 – Sep 2025
MRSA BacteremiaInfections	1.034	No different	Oct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections	0.686	No different	Oct 2024 – Sep 2025
SSI - Colon SurgeryInfections	0.46	No different	Oct 2024 – Sep 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits	20.6 · 45 cases	None	Jul 2023 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits	-35.8 · 34 cases	None	Jul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits	-8.9 · 33 cases	None	Jul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits	17.8 · 31 cases	None	Jul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits	5.4 (3.5 to 8.5) · 36 cases	No different	Jan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits	10.6 (7.3 to 15.4) · 36 cases	No different	Jan 2024 – Dec 2024
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits	21 · 26 cases	None	Jul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits	13.4 (9.8 to 18.4) · 57 cases	No different	Jan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits	1 (0.7 to 1.3) · 93 cases	No different	Jan 2024 – Dec 2024

What patients said (319 patients answered, 7% of those asked)

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Patient survey stars by topic at Kern Medical Center

Cleanliness	3
Nurse communication	1
Doctor communication	2
Communication about medicines	2
Discharge information	3
Overall hospital rating	2
Quietness	1
Recommend hospital	2

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Share of patients giving the best answer at Kern Medical Center

Room was "always" clean	64%
Nurses "always" communicated well	69%
Doctors "always" communicated well	69%
Staff "always" explained	53%
Yes, staff "did" give patients this information	86%
Yes, staff "did" give patients information about help after discharge	83%
Doctors "always" explained things so they could understand	63%
Doctors "always" listened carefully	69%
Doctors "always" treated them with courtesy and respect	76%
Patients who gave a rating of "9" or "10" (high)	61%
Staff "always" explained new medications	62%
Nurses "always" explained things so they could understand	62%
Nurses "always" listened carefully	65%
Nurses "always" treated them with courtesy and respect	79%
"Always" quiet at night	32%
"YES", patients would definitely recommend the hospital	60%
Staff "always" explained possible side effects	43%
Yes, staff "did" give patients information about possible symptoms	88%

See every measure and the patient survey for Mercy Hospital

Behind the star rating — Deaths: 0 better, 7 the same, 0 worse of 7 measures. Safety: 3 better, 4 the same, 0 worse of 7 measures. Readmissions: 0 better, 4 the same, 2 worse of 6 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

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Every scored measure at Mercy Hospital

Clostridium Difficile (C.Diff)Infections	0.161	Better	Oct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths	0.82 (0 to 1.78) · 851 cases	No different	Jul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths	1.09 (0.72 to 1.47)	No different	Jul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths	181.24 (125 to 237.47) · 39 cases	No different	Jul 2022 – Jun 2024
Death rate for COPD patientsComplications and deaths	9.7 · 104 cases	None	Jul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths	11.2 · 35 cases	None	Jul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths	11.3 · 174 cases	None	Jul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths	14.5 · 329 cases	None	Jul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths	13.5 · 161 cases	None	Jul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths	4 · 1,890 cases	None	Jul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths	0.24 (0.02 to 0.46) · 3,882 cases	No different	Jul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths	0.24 (0.03 to 0.45) · 3,839 cases	No different	Jul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths	3.25 (1.02 to 5.49) · 702 cases	No different	Jul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths	1.61 (0 to 3.3) · 196 cases	No different	Jul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths	2.32 (0.7 to 3.93) · 670 cases	No different	Jul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths	17.54 (8.81 to 26.27) · 206 cases	No different	Jul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths	5.99 (2.01 to 9.98) · 168 cases	No different	Jul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths	1.6 (0.14 to 3.07) · 278 cases	No different	Jul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths	0.21 (0 to 0.98) · 3,352 cases	No different	Jul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths	3.5 · 32 cases	None	Apr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections	0.297	No different	Oct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections	0.966	No different	Oct 2024 – Sep 2025
MRSA BacteremiaInfections	0	No different	Oct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections	0	No different	Oct 2024 – Sep 2025
SSI - Colon SurgeryInfections	0.381	No different	Oct 2024 – Sep 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits	20.7 · 258 cases	None	Jul 2023 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits	13.5 · 198 cases	None	Jul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits	27 · 358 cases	None	Jul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits	18.8 · 446 cases	None	Jul 2023 – Jun 2025
Rate of readmission after hip/knee replacementUnplanned return visits	5.6 · 28 cases	None	Jul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits	20.3 · 149 cases	None	Jul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits	11.7 (8.8 to 15.7) · 448 cases	No different	Jan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits	1 (0.8 to 1.4) · 305 cases	No different	Jan 2024 – Dec 2024

What patients said (444 patients answered, 11% of those asked)

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Patient survey stars by topic at Mercy Hospital

Cleanliness	3
Nurse communication	3
Doctor communication	2
Communication about medicines	2
Discharge information	2
Overall hospital rating	3
Quietness	1
Recommend hospital	3

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Share of patients giving the best answer at Mercy Hospital

Room was "always" clean	66%
Nurses "always" communicated well	78%
Doctors "always" communicated well	70%
Staff "always" explained	61%
Yes, staff "did" give patients this information	83%
Yes, staff "did" give patients information about help after discharge	80%
Doctors "always" explained things so they could understand	67%
Doctors "always" listened carefully	68%
Doctors "always" treated them with courtesy and respect	76%
Patients who gave a rating of "9" or "10" (high)	65%
Staff "always" explained new medications	73%
Nurses "always" explained things so they could understand	72%
Nurses "always" listened carefully	73%
Nurses "always" treated them with courtesy and respect	87%
"Always" quiet at night	41%
"YES", patients would definitely recommend the hospital	67%
Staff "always" explained possible side effects	49%
Yes, staff "did" give patients information about possible symptoms	85%

Original Medicare doctor bills

$10,149

Medicare paid this office $10,149 for 61 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Who their Medicare patients are

61 Original Medicare patients in 2024. Average age 68 · Women 57% · Also on Medicaid 62% · Health risk score 1.86. Above the middle of the specialty; the typical anesthesiology clinician is at 1.54.

Conditions among them: High blood pressure 75% · Diabetes 51% · Coronary heart disease 36% · Chronic kidney disease 36% · COPD 34% · Depression 31% · Heart failure 23% · Atrial fibrillation 23%.

The office billed $79,255, Medicare allowed $13,364 and paid $10,149; for 68 services of 33 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

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Original Medicare by year

2024	61	68	68	1.86	$79,255	$10,149
2023	30	35	70	1.22	$43,752	$6,668
2022	34	39	68	1.64	$41,276	$5,902
2021	99	118	70	1.38	$152,740	$21,188
2020	43	55	69	1.50	$112,670	$9,906
2019	40	50	66	1.48	$46,213	$7,190
2018	41	56	66	1.80	$61,800	$9,686
2017	28	31	66	2.03	$31,300	$4,810
2016	26	29	67	1.37	$43,670	$4,864
2014	44	46	59	1.61	$73,568	$8,188
2013	150	175	62	1.50	$187,502	$20,302

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

2021: 2 services

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Original Medicare services billed in 2021

Anesthesia for procedure for total knee joint replacement	17	$4,912	$289
Anesthesia for nerve block and injection procedure, prone position	11	$1,362	$124

2013: 2 services

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Original Medicare services billed in 2013

Anesthesia for other procedure on neck area (1 year or older)	23	$2,675	$111
Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back	12	$1,327	$102

Medicaid work

$8,574 in 2023

Medicaid paid $8,574 for 35 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.

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Largest Medicaid services in 2023

Anesthesia for cesarean delivery only	16	$4,292
Neuraxial labor analgesia/anesthesia for planned vaginal delivery (this includes any repeat subarachnoid needle placement and drug injection and/or any necessary replacement of an epidural catheter during labor)	19	$4,282

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Medicaid work by year

2023	35	2	19	$8,574

Money from drug and device companies

$62 in 2025

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Industry payments by year

2025	1	3	None	$62
2024	1	6	None	$102
2023	1	5	None	$70
2022	1	3	None	$43
2021	1	3	None	$44
2020	2	3	None	$40
2019	2	2	None	$22

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

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Payments by company

Merck Sharp & Dohme	Bridion	$62	3 payments Meals for Bridion · 2025-11-06 · $19 Meals for Bridion · 2025-09-23 · $27 Meals for Bridion · 2025-08-05 · $16

See all 3 published payments

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Every published payment

Merck Sharp & Dohme	Meals · 2025-11-06	Bridion	$19
Merck Sharp & Dohme	Meals · 2025-09-23	Bridion	$27
Merck Sharp & Dohme	Meals · 2025-08-05	Bridion	$16

See earlier years (2024, 2023, 2022, 2021, 2020, 2019)

2024: $102

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Payments by company in 2024

Merck Sharp & Dohme	Bridion	$102	6 payments Meals for Bridion · 2024-09-11 · $18 Meals for Bridion · 2024-07-22 · $17 Meals for Bridion · 2024-05-23 · $16 Meals for Bridion · 2024-05-01 · $22 Meals for Bridion · 2024-03-13 · $14 Meals for Bridion · 2024-01-24 · $14

2023: $70

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Payments by company in 2023

Merck Sharp & Dohme	Bridion	$70	5 payments Meals for Bridion · 2023-09-06 · $15 Meals for Bridion · 2023-07-11 · $13 Meals for Bridion · 2023-05-03 · $15 Meals for Bridion · 2023-03-16 · $14 Meals for Bridion · 2023-01-25 · $13

2022: $43

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Payments by company in 2022

Merck Sharp & Dohme	Bridion	$43	3 payments Meals for Bridion · 2022-09-14 · $15 Meals for Bridion · 2022-07-26 · $13 Meals for Bridion · 2022-01-24 · $15

2021: $44

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Payments by company in 2021

Merck Sharp & Dohme	Bridion	$44	3 payments Meals for Bridion · 2021-11-04 · $15 Meals for Bridion · 2021-09-01 · $15 Meals for Bridion · 2021-06-09 · $14

2020: $40

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Payments by company in 2020

Merck Sharp & Dohme	Bridion	$24	2 payments Meals for Bridion · 2020-09-30 · $12 Meals for Bridion · 2020-01-24 · $12
Acell	None	$16	1 payment Meals · 2020-11-04 · $16

2019: $22

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Payments by company in 2019

Mallinckrodt Enterprises	Ofirmev	$12	1 payment Meals for Ofirmev · 2019-03-28 · $12
Merck Sharp & Dohme	Bridion	$11	1 payment Meals for Bridion · 2019-11-20 · $11

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score: 85.8 / 100; Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI: 1215131818
Licence: CA A102475California A102475: Current · expires 2027-11-30
Trained: Stanford University School of Medicine, 2003
Group: Regional Anesthesia Associates Inc · Excelle Anesthesia Services Inc · Community Foundation Medical Group · County of Santa Clara
Gender: Male

More record details

Sole proprietor: No
Medicaid ID: CA 1215131818
Taxonomy: Federal specialty code 207L00000X (207L00000X)
Mailing address: Po Box 7096, Stockton, CA, 95267
NPI first listed: 2007-06-14
NPI last updated: 2016-12-27

This is when the NPI record was last certified, not a medical board exam.