Joel Chiu, MD | UniHealth

Offices

8 locations · Cep America - California · Sutter Bay Medical Foundation · Franciscan Medical Group

Looking this up.

Hospitals listed: Sutter Delta Medical Center. 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. Chiu’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence G82224 · Current

Licensed to practise in California · since 1996 · expires 2028-03-31 · University of California San Francisco School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

State licence records

1 licence

Washington MD.MD.61137334Physician And Surgeon License · since 2021 · expires 2028-03-19
ActiveNo board action on this licenceCheck it with the state

We check Colorado, Delaware, Florida, Illinois, Maryland, New Jersey, New York, Tennessee, Texas, Virginia, Washington, plus California above. A state that is not in this list has not been checked, which is not the same as clear.

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.

Sutter Delta Medical CenterAntioch, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 2 of 5 · 60% would definitely recommend it
Overall rating: 3 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.173, Oct 2024 – Sep 2025

See every measure and the patient survey for Sutter Delta Medical Center

Behind the star rating — Deaths: 0 better, 7 the same, 0 worse of 7 measures. Safety: 1 better, 5 the same, 0 worse of 6 measures. Readmissions: 0 better, 5 the same, 2 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 Sutter Delta Medical Center

Clostridium Difficile (C.Diff)Infections	0.173	Better	Oct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths	0.98 (0 to 2.03) · 561 cases	No different	Jul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths	0.88 (0.47 to 1.29)	No different	Jul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths	176.46 (114.75 to 238.17) · 31 cases	No different	Jul 2022 – Jun 2024
Death rate for COPD patientsComplications and deaths	8.5 · 113 cases	None	Jul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths	12 · 100 cases	None	Jul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths	9.3 · 260 cases	None	Jul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths	14.2 · 259 cases	None	Jul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths	12.5 · 56 cases	None	Jul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths	3.8 · 1,274 cases	None	Jul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths	0.24 (0.02 to 0.46) · 3,285 cases	No different	Jul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths	0.24 (0.04 to 0.45) · 3,374 cases	No different	Jul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths	3.47 (1.02 to 5.93) · 364 cases	No different	Jul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths	2.16 (0.49 to 3.83) · 323 cases	No different	Jul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths	8.63 (0 to 18.4) · 26 cases	No different	Jul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths	1.71 (0.2 to 3.22) · 81 cases	No different	Jul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths	0.24 (0 to 1.07) · 2,713 cases	No different	Jul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections	0	No different	Oct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections	0	No different	Oct 2024 – Sep 2025
SSI - Colon SurgeryInfections	0.962	No different	Oct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits	14.1 · 116 cases	None	Jul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits	20 · 316 cases	None	Jul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits	20 · 83 cases	None	Jul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits	7.1 · 298 cases	None	Jul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits	27.3 · 269 cases	None	Jul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits	16.4 · 283 cases	None	Jul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits	19.7 · 150 cases	None	Jul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits	12.9 (9.7 to 17.1) · 529 cases	No different	Jan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits	0.9 (0.6 to 1.3) · 45 cases	No different	Jan 2024 – Dec 2024

What patients said (610 patients answered, 13% of those asked)

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Patient survey stars by topic at Sutter Delta Medical Center

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

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Share of patients giving the best answer at Sutter Delta Medical Center

Room was "always" clean	70%
Nurses "always" communicated well	70%
Doctors "always" communicated well	72%
Staff "always" explained	53%
Yes, staff "did" give patients this information	83%
Yes, staff "did" give patients information about help after discharge	83%
Doctors "always" explained things so they could understand	67%
Doctors "always" listened carefully	70%
Doctors "always" treated them with courtesy and respect	80%
Patients who gave a rating of "9" or "10" (high)	60%
Staff "always" explained new medications	67%
Nurses "always" explained things so they could understand	64%
Nurses "always" listened carefully	66%
Nurses "always" treated them with courtesy and respect	78%
"Always" quiet at night	44%
"YES", patients would definitely recommend the hospital	60%
Staff "always" explained possible side effects	40%
Yes, staff "did" give patients information about possible symptoms	83%

Original Medicare doctor bills

$18,710

Medicare paid this office $18,710 for 189 people.

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

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Largest Original Medicare bills

Emergency department visit with high level of medical decision making	31	$4,712	$152
New patient visit (30+ min)	36	$3,154	$88
Short return visit (20+ min)	34	$2,780	$82
New patient visit (15+ min)	31	$2,124	$69
Emergency department visit with moderate level of medical decision making	22	$1,951	$89

See all 7 services

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Every Original Medicare service billed

Emergency department visit with high level of medical decision making	31	$4,712	$152
New patient visit (30+ min)	36	$3,154	$88
Short return visit (20+ min)	34	$2,780	$82
New patient visit (15+ min)	31	$2,124	$69
Emergency department visit with moderate level of medical decision making	22	$1,951	$89
Short return visit	17	$925	$54
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	21	$153	$7

Procedures Medicare counted

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Procedure volume Medicare published

Removal of nail tissue	1-10	None

Who their Medicare patients are

189 Original Medicare patients in 2024. Average age 72 · Under 65 13% · 85 and older 7% · Women 61% · Also on Medicaid 32% · Health risk score 1.57. At or below the middle of the specialty; the typical emergency medicine clinician is at 2.01.

Conditions among them: High blood pressure 70% · Diabetes 31% · Depression 28% · Coronary heart disease 26% · Chronic kidney disease 26% · Heart failure 20% · COPD 20% · Atrial fibrillation 17% · Cancer 13% · Stroke 12% · Dementia 7%.

The office billed $109,921, Medicare allowed $25,548 and paid $18,710; for 241 services of 29 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	189	241	72	1.57	$109,921	$18,710
2023	243	301	73	1.36	$135,683	$24,134
2022	169	232	73	1.73	$135,488	$20,757
2021	113	170	69	2.12	$87,574	$15,101
2020	185	256	71	2.12	$125,651	$21,240
2019	162	239	71	2.55	$108,889	$18,778
2018	304	472	69	2.63	$204,941	$38,665
2017	498	787	70	2.31	$291,691	$89,161
2016	517	802	69	2.27	$303,693	$63,940
2015	550	894	69	2.12	$302,071	$66,307
2014	465	766	69	2.15	$258,717	$58,797
2013	445	679	68	2.15	$229,603	$51,979

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: 6 services

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Original Medicare services billed in 2023

Emergency department visit with high level of medical decision making	36	$5,021	$139
New patient visit (30+ min)	47	$4,849	$103
New patient visit (15+ min)	60	$3,992	$67
Short return visit (20+ min)	45	$3,929	$84
Emergency department visit with moderate level of medical decision making	20	$1,844	$92
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	14	$109	$7

2022: 6 services

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Original Medicare services billed in 2022

Emergency department visit with high level of medical decision making	52	$7,513	$144
Critical care, first 30-74 minutes	16	$3,612	$212
Short return visit (20+ min)	43	$3,330	$77
Emergency department visit with moderate level of medical decision making	18	$1,716	$95
Office for the evaluation and management of established patient that may not require presence of healthcare professional	15	$404	$27
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	31	$219	$7

2021: 5 services

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Original Medicare services billed in 2021

Emergency department visit with high level of medical decision making	30	$5,373	$173
Critical care, first 30-74 minutes	11	$2,557	$232
Short return visit (20+ min)	28	$2,148	$74
Emergency department visit with moderate level of medical decision making	19	$2,043	$108
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	32	$266	$8

2020: 7 services

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Original Medicare services billed in 2020

Emergency department visit with high level of medical decision making	39	$5,695	$139
Critical care, first 30-74 minutes	23	$4,652	$202
Short return visit (20+ min)	57	$3,873	$67
Emergency department visit with moderate level of medical decision making	27	$2,482	$92
Emergency department visit with low level of medical decision making	14	$783	$52
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	31	$240	$7
Automated urinalysis test	16	$36	$2

2019: 5 services

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Original Medicare services billed in 2019

Emergency department visit with high level of medical decision making	73	$10,635	$146
Emergency department visit with moderate level of medical decision making	38	$3,777	$99
Short return visit (20+ min)	21	$1,489	$71
Emergency department visit with low level of medical decision making	14	$719	$51
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	59	$489	$8

2018: 6 services

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Original Medicare services billed in 2018

Emergency department visit with high level of medical decision making	130	$19,165	$143
Emergency department visit with moderate level of medical decision making	76	$7,639	$95
Critical care, first 30-74 minutes	27	$5,343	$198
Emergency department visit with low level of medical decision making	47	$2,450	$52
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	123	$997	$8
Short return visit (20+ min)	19	$764	$40

2017: 6 services

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Original Medicare services billed in 2017

Emergency department visit with high level of medical decision making	231	$47,266	$204
Emergency department visit with moderate level of medical decision making	100	$14,030	$139
Critical care, first 30-74 minutes	41	$11,333	$276
Short return visit (20+ min)	54	$3,239	$60
Emergency department visit with low level of medical decision making	44	$2,888	$66
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	200	$2,182	$10

2016: 8 services

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Original Medicare services billed in 2016

Emergency department visit with high level of medical decision making	245	$33,773	$135
Critical care, first 30-74 minutes	54	$9,567	$177
Emergency department visit with moderate level of medical decision making	96	$8,955	$92
Emergency department visit with low level of medical decision making	78	$3,889	$49
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	215	$1,553	$7
Critical care, each additional 30 minutes	12	$1,352	$80
Short return visit (20+ min)	21	$1,304	$62
X-ray of chest, 1 view, front	11	$82	$7

2015: 8 services

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Original Medicare services billed in 2015

Emergency department visit with high level of medical decision making	221	$31,420	$137
Emergency department visit with moderate level of medical decision making	114	$10,611	$93
Critical care, first 30-74 minutes	52	$9,580	$184
Emergency department visit with low level of medical decision making	77	$3,752	$49
Short return visit (20+ min)	39	$1,830	$46
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	226	$1,796	$7
New patient visit (15+ min)	23	$1,410	$61
X-ray of chest, 1 view, front	11	$86	$8

2014: 8 services

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Original Medicare services billed in 2014

Emergency department visit with high level of medical decision making	184	$25,963	$136
Critical care, first 30-74 minutes	56	$10,970	$189
Emergency department visit with moderate level of medical decision making	80	$7,462	$93
Emergency department visit with low level of medical decision making	71	$3,428	$48
Critical care, each additional 30 minutes	19	$2,647	$95
Short return visit (20+ min)	45	$2,573	$55
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	185	$1,436	$7
New patient visit (15+ min)	17	$763	$45

2013: 9 services

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Original Medicare services billed in 2013

Emergency department visit with high level of medical decision making	156	$21,531	$135
Emergency department visit with moderate level of medical decision making	83	$7,570	$90
Critical care, first 30-74 minutes	40	$7,517	$183
Emergency department visit with low level of medical decision making	75	$3,466	$46
Critical care, each additional 30 minutes	18	$2,483	$92
New patient visit (15+ min)	39	$1,907	$49
Short return visit (20+ min)	27	$1,539	$55
New patient visit (30+ min)	18	$1,096	$61
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	124	$867	$7

Medicaid work

$4,590 in 2024

Medicaid paid $4,590 for 89 billed services this clinician did in 2024, up to 18 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 2024

OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES	46	$2,076
EMERGENCY DEPT VISIT MOD MDM	29	$2,009
Short return visit	14	$505

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Medicaid work by year

2024	89	3	18	$4,590
2023	280	5	39	$15,927
2022	135	3	34	$8,317
2021	20	1	20	$968
2020	161	3	33	$8,822
2019	252	4	35	$12,776
2018	989	7	55	$43,523

See the largest Medicaid services in earlier years

2023

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Largest Medicaid services in 2023

EMERGENCY DEPT VISIT MOD MDM	90	$6,971
OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES	145	$6,143
New patient visit (30+ min)	20	$1,283
EMERGENCY DEPARTMENT VISIT HIGH MDM	13	$1,151
Short return visit	12	$378

2022

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Largest Medicaid services in 2022

EMERGENCY DEPT VISIT MOD MDM	47	$3,352
EMERGENCY DEPT VISIT LOW MDM	59	$2,615
EMERGENCY DEPARTMENT VISIT HIGH MDM	29	$2,351

2021

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Largest Medicaid services in 2021

EMERGENCY DEPT VISIT LOW MDM	20	$968

2020

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Largest Medicaid services in 2020

EMERGENCY DEPT VISIT MOD MDM	65	$3,848
EMERGENCY DEPT VISIT LOW MDM	74	$2,801
EMERGENCY DEPARTMENT VISIT HIGH MDM	22	$2,173

2019

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Largest Medicaid services in 2019

EMERGENCY DEPT VISIT MOD MDM	118	$7,115
EMERGENCY DEPT VISIT LOW MDM	89	$3,209
EMERGENCY DEPARTMENT VISIT HIGH MDM	28	$2,248
Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only	17	$205

2018

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Largest Medicaid services in 2018

EMERGENCY DEPT VISIT MOD MDM	296	$17,086
EMERGENCY DEPARTMENT VISIT HIGH MDM	169	$13,248
EMERGENCY DEPT VISIT LOW MDM	275	$9,262
Service	86	$3,047
Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only	107	$586
COMPREHENSIVE METABOLIC PANEL	26	$148
Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count	30	$146

Drugs they prescribed that Part D paid

$9,706

Pharmacies billed $9,706 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

129 generic and fewer than 11 brand-name prescriptions · $9,706 in drug cost · 65 antibiotic prescriptions to 64 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.

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Largest Part D drug costs

Paxlovid	15	$1,367	$91
Nitrofurantoin Mono-Macro	11	$167	$14
Cephalexin	17	$120	$7

Year by year

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Part D prescribing by year

2024	167	145	None	None	$9,706
2023	233	194	None	7%	$4,991
2022	120	91	11% (13)	None	$2,794
2021	82	62	None	None	$1,449
2020	91	72	None	None	$1,860
2019	58	44	None	None	$832
2018	150	105	12% (18)	None	$3,516
2017	250	168	21% (53)	None	$4,157
2016	264	159	17% (44)	None	$7,897
2015	273	191	17% (47)	None	$5,605
2014	262	182	20% (53)	16%	$8,777
2013	309	189	27% (83)	None	$5,299

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

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Part D drugs prescribed in 2023

Cephalexin	26	$240	$9
Paxlovid (Eua)	23	$225	$10
Nitrofurantoin Mono-Macro	16	$218	$14
Naproxen	14	$70	$5
Azithromycin	13	$54	$4
Prednisone	12	$33	$3

2022: 1 drug

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Part D drugs prescribed in 2022

Cephalexin	18	$154	$9

2020: 1 drug

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Part D drugs prescribed in 2020

Cephalexin	20	$123	$6

2018: 2 drugs

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Part D drugs prescribed in 2018

Hydrocodone-Acetaminophen	14	$73	$5
Cephalexin	12	$69	$6

2017: 3 drugs

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Part D drugs prescribed in 2017

Hydrocodone-Acetaminophen	41	$181	$4
Cephalexin	23	$139	$6
Ciprofloxacin	15	$76	$5

2016: 5 drugs

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Part D drugs prescribed in 2016

Hydrocodone-Acetaminophen	33	$230	$7
Cephalexin	27	$220	$8
Ibuprofen	17	$50	$3
Prednisone	14	$48	$3
Carvedilol	12	$42	$4

2015: 6 drugs

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Part D drugs prescribed in 2015

Hydrocodone-Acetaminophen	41	$244	$6
Levofloxacin	20	$212	$11
Cephalexin	19	$198	$10
Azithromycin	12	$93	$8
Ibuprofen	14	$74	$5
Prednisone	11	$46	$4

2014: 3 drugs

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Part D drugs prescribed in 2014

Azithromycin	41	$320	$8
Hydrocodone-Acetaminophen	45	$290	$6
Cephalexin	38	$257	$7

2013: 4 drugs

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Part D drugs prescribed in 2013

Hydrocodone-Acetaminophen	63	$547	$9
Azithromycin	22	$225	$10
Cephalexin	26	$188	$7
Ibuprofen	14	$37	$3

Money from drug and device companies

$128 in 2025

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Industry payments by year

2025	1	1	None	$128
2024	2	3	None	$476

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

Stryker	Flowtriever	$128	1 payment Meals for Flowtriever · 2025-10-28 · $128

See the published payment

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Every published payment

Stryker	Meals · 2025-10-28	Flowtriever	$128

See earlier years (2024)

2024: $476

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Payments by company in 2024

Inari Medical	Flowtriever Catheter, S	$356	2 payments Meals for Flowtriever Catheter, S · 2024-10-10 · $167 Meals for Flowtriever Catheter, S · 2024-04-23 · $189
AstraZeneca Pharmaceuticals LP	Airsupra	$121	1 payment Meals for Airsupra · 2024-02-06 · $121

Professional record

NPI: 1295726446
Licence: CA G82224, MN 2685, NY 320293, WA MD61137334California G82224: Current · expires 2028-03-31Washington MD.MD.61137334: Active
Group: Cep America - California · Sutter Bay Medical Foundation · Franciscan Medical Group
Video visits: Lists video visits
Gender: Male

More record details

Sole proprietor: No
Medicaid ID: CA 00G822240
Taxonomy: Federal specialty code 207P00000X (207P00000X)
Mailing address: 4301 Northstar Way, Modesto, CA, 95356
NPI first listed: 2005-11-04
NPI last updated: 2023-01-30
NPI record certified: 2023-01-30

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