Aileen Chang, MD
Diagnostic Radiology · Bellflower
- 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
- 7
Offices
7 locations · Southern California Permanente Medical Group · 11,250 clinicians in this group
Hospitals listed: Kaiser Foundation Hospital - Downey. 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. Chang’s office to ask if they take your plan before you enroll.
California Medical Board record
Licence A156964 · Current
Licensed to practise in California · since 2018 · expires 2028-07-31 · University of California, San Diego 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.
- Kaiser Foundation Hospital - DowneyDowney, CAAcute Care Hospital · Voluntary non-profit - Other · No emergency department · Birthing-friendlyPart of Kaiser Permanente, which runs 41 hospitals in 3 statesPatients rate it 3 of 5 · 72% would definitely recommend itOverall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.205, Oct 2024 – Sep 2025
See every measure and the patient survey for Kaiser Foundation Hospital - Downey
Behind the star rating — Deaths: 0 better, 1 the same, 0 worse of 1 measures. Safety: 1 better, 6 the same, 0 worse of 7 measures. Readmissions: 0 better, 1 the same, 0 worse of 1 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Clostridium Difficile (C.Diff)Infections | 0.205 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.02 (0 to 2.09) · 222 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1 (0.55 to 1.45) | No different | Jul 2022 – Jun 2024 |
| Death rate for pneumonia patientsComplications and deaths | 16.8 · 28 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 9.8 · 310 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.9 · 3,832 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.2 (0 to 0.43) · 1,012 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.26 (0.05 to 0.48) · 1,039 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 4.16 (1.63 to 6.69) · 177 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.65 (0 to 3.38) · 49 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.53 (0.84 to 4.22) · 174 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 11.3 (1.53 to 21.06) · 50 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.05 (0.79 to 9.31) · 52 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.74 (0.22 to 3.26) · 59 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.39 (0 to 1.44) · 900 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4 · 26 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.635 | No different | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.914 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.551 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.601 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.1 · 106 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 21.4 · 721 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 33.8 · 28 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19.8 · 710 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.5 · 189 cases | None | Jul 2023 – Jun 2025 |
What patients said (553 patients answered, 17% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 3 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 3 |
| Recommend hospital | 4 |
| Room was "always" clean | 69% |
| Nurses "always" communicated well | 77% |
| Doctors "always" communicated well | 79% |
| Staff "always" explained | 57% |
| Yes, staff "did" give patients this information | 87% |
| Yes, staff "did" give patients information about help after discharge | 86% |
| Doctors "always" explained things so they could understand | 75% |
| Doctors "always" listened carefully | 77% |
| Doctors "always" treated them with courtesy and respect | 84% |
| Patients who gave a rating of "9" or "10" (high) | 73% |
| Staff "always" explained new medications | 70% |
| Nurses "always" explained things so they could understand | 72% |
| Nurses "always" listened carefully | 77% |
| Nurses "always" treated them with courtesy and respect | 82% |
| "Always" quiet at night | 58% |
| "YES", patients would definitely recommend the hospital | 72% |
| Staff "always" explained possible side effects | 43% |
| Yes, staff "did" give patients information about possible symptoms | 87% |
Original Medicare doctor bills
$3,768
Medicare paid this office $3,768 for 119 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Ct scan of abdomen and pelvis with contrast | 13 | $671 | $52 |
| Ct scan head or brain without contrast | 14 | $394 | $28 |
| X-ray of chest, 1 view | 24 | $180 | $7 |
Who their Medicare patients are
119 Original Medicare patients in 2024. Average age 69 · Under 65 26% · 85 and older 9% · Women 57% · Also on Medicaid 64% · Health risk score 2.64. Sicker patients than 9 in 10 peers; the typical diagnostic radiology clinician is at 1.7.
Conditions among them: High blood pressure 75% · Diabetes 56% · Chronic kidney disease 45% · Heart failure 35% · Depression 27% · Coronary heart disease 24% · COPD 21% · Atrial fibrillation 20% · Dementia 18% · Stroke 15% · Cancer 11%.
The office billed $30,144, Medicare allowed $5,656 and paid $3,768; for 141 services of 39 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 | 119 | 141 | 69 | 2.64 | $30,144 | $3,768 |
| 2023 | 241 | 309 | 73 | 2.32 | $72,780 | $16,993 |
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: 7 services
| Screening mammography | 75 | $10,581 | $141 |
| Ct scan of abdomen and pelvis with contrast | 23 | $1,461 | $64 |
| Ct scan of blood vessels of chest with contrast | 17 | $1,003 | $59 |
| Ct scan of abdomen and pelvis without contrast | 13 | $812 | $62 |
| X-ray of chest, 1 view | 65 | $439 | $7 |
| Screening mammography | 11 | $422 | $38 |
| X-ray of chest, 2 views | 16 | $115 | $7 |
Medicaid work
$59,548 in 2024
Medicaid paid $59,548 for 959 billed services this clinician did in 2024, up to 52 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.
| CT ABDOMEN & PELVIS W/CONTRAST MATERIAL | 152 | $26,087 |
| Computed tomography, head or brain; without contrast material | 163 | $14,677 |
| Screening mammography, bilateral (2-view study of each breast), including computer-aided detection (CAD) when performed | 294 | $13,697 |
| Complete unilateral real time ultrasound of breast | 52 | $2,214 |
| Radiologic examination, chest; single view | 214 | $1,393 |
| DXA BONE DENSITY STUDY 1/> SITES AXIAL SKEL | 15 | $375 |
| Radiologic examination, chest; 2 views | 31 | $367 |
| Ultrasound, pelvic (nonobstetric), real time with image documentation; complete | 14 | $358 |
| Ultrasound by transvaginal approach | 12 | $340 |
| X-RAY EXAM OF ANKLE | 12 | $40 |
| 2024 | 959 | 10 | 52 | $59,548 |
| 2023 | 626 | 4 | 78 | $38,466 |
See the largest Medicaid services in earlier years
2023
| Screening mammography, bilateral (2-view study of each breast), including computer-aided detection (CAD) when performed | 435 | $32,032 |
| CT ABDOMEN & PELVIS W/CONTRAST MATERIAL | 48 | $5,460 |
| Radiologic examination, chest; single view | 131 | $847 |
| Radiologic examination, chest; 2 views | 12 | $127 |
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 100.0 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1780117895
- Licence
- CA A156964California A156964: Current · expires 2028-07-31
- Trained
- University of California, San Diego School of Medicine, 2017
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Diagnostic radiology (2085R0202X)
- Mailing address
- 5767 W Century Blvd Ste 400, Los Angeles, CA, 90045
- NPI first listed
- 2017-04-05
- NPI last updated
- 2023-10-27
- NPI record certified
- 2022-06-08
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 751 S Bascom Ave, San Jose, CA, 95128
This office lists an electronic records connection.