Angela Shunzu Chen, DO
Family Practice · Campbell
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 3
- 1 carrier
- Offices
- 3
Offices
3 locations · Carbon Health Primary Care of California PC · El Camino Health Medical Network LLC
Looking this up.
Hospitals listed: El Camino Health. That is not proof they admit you there this week.
Plans that list them
3 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chen’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| Imperial Courage Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Dynamic Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Senior Value (HMO C-SNP) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
Checkups this office reported
2023
Medicare did not publish checkup rates for this clinician.
What the office says it does
Boxes the office ticked on its Medicare worksheet for 2023. Nobody checks these.
- Lets patients read their visit notes
- Uses standard treatment protocols
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.
- El Camino HealthMountain View, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of El Camino Health, which runs 2 hospitalsPatients rate it 4 of 5 · 80% would definitely recommend itOverall rating: 4 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.291, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.393, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0, Oct 2024 – Sep 2025
See every measure and the patient survey for El Camino Health
Behind the star rating — Deaths: 3 better, 5 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 1 better, 9 the same, 1 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.291 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.393 | Better | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.96 (0.12 to 1.79) · 2,340 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1.02 (0.76 to 1.28) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 167.38 (125.03 to 209.73) · 96 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 2.6 · 68 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 7.1 · 185 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 11.8 · 200 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 8.9 · 814 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 13 · 842 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 9.6 · 361 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.6 · 4,633 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.16 (0 to 0.34) · 11,474 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.27 (0.1 to 0.45) · 11,626 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.14 (1.39 to 4.9) · 2,814 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 2 (0.61 to 3.39) · 1,327 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.11 (0.8 to 3.43) · 2,641 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 9.39 (4.18 to 14.6) · 1,287 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 6.57 (3.47 to 9.68) · 1,308 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 2.14 (0.71 to 3.57) · 827 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.6 (0.05 to 1.15) · 9,460 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.5 · 122 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.993 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.706 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 1.376 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 15.5 · 218 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 19.5 · 962 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 3.8 · 200 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -17 · 922 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 18.6 · 860 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 18.7 · 827 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 6.1 (4.5 to 8.2) · 313 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 13.4 (10.6 to 16.5) · 313 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.1 · 144 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 10.3 · 80 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 20.7 · 237 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.8 (10 to 16.1) · 1,639 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.8 to 1.1) · 1,619 cases | No different | Jan 2024 – Dec 2024 |
What patients said (1,535 patients answered, 22% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 3 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 79% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 61% |
| Yes, staff "did" give patients this information | 86% |
| Yes, staff "did" give patients information about help after discharge | 86% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 80% |
| Doctors "always" treated them with courtesy and respect | 87% |
| Patients who gave a rating of "9" or "10" (high) | 76% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 75% |
| Nurses "always" listened carefully | 76% |
| Nurses "always" treated them with courtesy and respect | 87% |
| "Always" quiet at night | 47% |
| "YES", patients would definitely recommend the hospital | 80% |
| Staff "always" explained possible side effects | 46% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$27,075
Medicare paid this office $27,075 for 111 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Return visit (30+ min) | 32 | $5,552 | $121 |
| Long return visit (40+ min) | 18 | $4,457 | $171 |
| Short return visit (20+ min) | 35 | $3,949 | $84 |
| New patient visit (45+ min) | 23 | $2,701 | $117 |
| New patient visit (30+ min) | 27 | $2,369 | $88 |
See all 8 services
| Return visit (30+ min) | 32 | $5,552 | $121 |
| Long return visit (40+ min) | 18 | $4,457 | $171 |
| Short return visit (20+ min) | 35 | $3,949 | $84 |
| New patient visit (45+ min) | 23 | $2,701 | $117 |
| New patient visit (30+ min) | 27 | $2,369 | $88 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | 38 | $941 | $14 |
| Short return visit | 13 | $839 | $52 |
| New patient visit (15+ min) | 11 | $611 | $56 |
Procedures Medicare counted
| Removal of skin lesions | 1-10 | None |
Who their Medicare patients are
111 Original Medicare patients in 2024. Average age 74 · Women 74% · Also on Medicaid 12% · Health risk score 0.81. At or below the middle of the specialty; the typical family practice clinician is at 1.13.
Conditions among them: High blood pressure 59% · Diabetes 26% · Coronary heart disease 17% · Chronic kidney disease 14% · Heart failure 12% · Depression 12% · Stroke 12% · Atrial fibrillation 10%.
The office billed $108,010, Medicare allowed $35,941 and paid $27,075; for 307 services of 20 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.
Drugs they prescribed that Part D paid
$27,984
Pharmacies billed $27,984 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 3% of their Part D prescriptions (16 of 536) in 2024. Above the middle of the specialty; the typical family practice clinician is at 2%.
471 generic and fewer than 11 brand-name prescriptions · $27,984 in drug cost · 31 antibiotic prescriptions to 24 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.
| Jardiance | 12 | $11,852 | $988 |
| Atorvastatin | 62 | $471 | $8 |
| Rosuvastatin | 41 | $315 | $8 |
| Losartan | 30 | $246 | $8 |
| Metformin | 18 | $159 | $9 |
See all 11 drugs
| Jardiance | 12 | $11,852 | $988 |
| Atorvastatin | 62 | $471 | $8 |
| Rosuvastatin | 41 | $315 | $8 |
| Losartan | 30 | $246 | $8 |
| Metformin | 18 | $159 | $9 |
| Levothyroxine | 14 | $147 | $11 |
| Metoprolol | 12 | $128 | $11 |
| Lisinopril | 14 | $117 | $8 |
| Metformin Hcl Er | 16 | $101 | $6 |
| Amlodipine Besylate | 32 | $99 | $3 |
| Omeprazole | 13 | $67 | $5 |
Year by year
| 2024 | 536 | 147 | 3% (16) | None | $27,984 |
| 2023 | 452 | 98 | 14% (63) | None | $12,830 |
| 2022 | 386 | 56 | None | 22% | $34,043 |
| 2021 | 460 | 56 | None | None | $36,938 |
| 2020 | 597 | 51 | 2% (11) | None | $42,620 |
| 2019 | 264 | 40 | 4% (11) | None | $35,771 |
| 2018 | 72 | 17 | 0% (0) | None | $5,804 |
| 2017 | 26 | None | 0% (0) | None | $2,270 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 10 drugs
| Rosuvastatin | 51 | $501 | $10 |
| Atorvastatin | 40 | $493 | $12 |
| Hydromorphone | 13 | $366 | $28 |
| Hydrocodone-Acetaminophen | 37 | $347 | $9 |
| Levothyroxine | 17 | $313 | $18 |
| Oxycodone-Acetaminophen | 12 | $269 | $22 |
| Albuterol Sulfate Hfa | 15 | $240 | $16 |
| Metoprolol | 22 | $231 | $10 |
| Metformin | 18 | $165 | $9 |
| Amlodipine Besylate | 11 | $147 | $13 |
2022: 7 drugs
| Breo Ellipta | 16 | $6,427 | $402 |
| Albuterol Sulfate Hfa | 20 | $815 | $41 |
| Atorvastatin | 40 | $317 | $8 |
| Fluticasone Propionate | 13 | $144 | $11 |
| Amlodipine Besylate | 17 | $123 | $7 |
| Omeprazole | 12 | $90 | $7 |
| Metformin | 16 | $24 | $2 |
2021: 13 drugs
| Incruse Ellipta | 11 | $5,626 | $511 |
| Atorvastatin | 35 | $515 | $15 |
| Esomeprazole Magnesium | 14 | $478 | $34 |
| Chlorthalidone | 12 | $423 | $35 |
| Rosuvastatin | 16 | $377 | $24 |
| Cyclobenzaprine | 13 | $277 | $21 |
| Allopurinol | 15 | $271 | $18 |
| Omeprazole | 12 | $183 | $15 |
| Amlodipine Besylate | 24 | $181 | $8 |
| Gabapentin | 16 | $160 | $10 |
| Sertraline | 12 | $145 | $12 |
| Fluoxetine | 14 | $94 | $7 |
| Metformin | 19 | $36 | $2 |
2020: 19 drugs
| Januvia | 13 | $9,926 | $764 |
| Isosorbide Mononitrate Er | 13 | $494 | $38 |
| Rosuvastatin | 24 | $380 | $16 |
| Chlorthalidone | 20 | $331 | $17 |
| Sertraline | 28 | $321 | $11 |
| Levothyroxine | 24 | $299 | $12 |
| Valsartan | 13 | $286 | $22 |
| Pantoprazole | 17 | $249 | $15 |
| Metoprolol | 11 | $233 | $21 |
| Atorvastatin | 18 | $165 | $9 |
| Amlodipine Besylate | 24 | $148 | $6 |
| Gabapentin | 12 | $145 | $12 |
| Alendronate | 17 | $136 | $8 |
| Losartan | 14 | $102 | $7 |
| Omeprazole | 13 | $88 | $7 |
| Furosemide | 25 | $87 | $3 |
| Lisinopril | 19 | $82 | $4 |
| Metformin | 18 | $49 | $3 |
| Carvedilol | 16 | $22 | $1 |
2019: 5 drugs
| Atorvastatin | 21 | $322 | $15 |
| Rosuvastatin | 15 | $264 | $18 |
| Chlorthalidone | 11 | $174 | $16 |
| Omeprazole | 12 | $74 | $6 |
| Lisinopril | 13 | $67 | $5 |
Money from drug and device companies
$242 in 2025
| 2025 | 4 | 10 | None | $242 |
| 2024 | 1 | 1 | None | $98 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Novo Nordisk | Wegovy | $143 | 6 payments
|
| Exact Sciences | The Cologuard Plus Collection Kit | $53 | 2 payments
|
| Dynavax Technologies | Heplisav-B | $27 | 1 payment
|
| Pfizer | Paxlovid | $19 | 1 payment
|
See all 10 published payments
| Novo Nordisk | Meals · 2025-11-06 | Wegovy | $22 |
| Novo Nordisk | Meals · 2025-10-01 | Wegovy | $34 |
| Novo Nordisk | Meals · 2025-09-23 | None | $21 |
| Pfizer | Meals · 2025-09-03 | Paxlovid | $19 |
| Exact Sciences | Meals · 2025-07-22 | The Cologuard Plus Collection Kit | $24 |
| Novo Nordisk | Meals · 2025-06-26 | None | $22 |
| Novo Nordisk | Meals · 2025-06-10 | Wegovy | $26 |
| Dynavax Technologies | Meals · 2025-06-04 | Heplisav-B | $27 |
| Exact Sciences | Meals · 2025-05-22 | The Cologuard Plus Collection Kit | $29 |
| Novo Nordisk | Meals · 2025-05-15 | Rybelsus | $19 |
See earlier years (2024)
2024: $98
| Boehringer Ingelheim Pharmaceuticals | Jardiance | $98 | 1 payment
|
Professional record
- NPI
- 1942735873
- Licence
- CA 20A19663
- Trained
- Touro Un Col of Osteopathic Medicine, Henderson, 2017
- Group
- Carbon Health Primary Care of California PC · El Camino Health Medical Network LLC
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Family medicine (207Q00000X); Student in a training program (390200000X)
- Mailing address
- 1721 Technology Dr, San Jose, CA, 95110
- NPI first listed
- 2017-04-28
- NPI last updated
- 2022-09-05
- NPI record certified
- 2022-09-05
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 600 Ivy St, Elmira, NY, 14905
This office lists an electronic records connection.