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Heng T Duong, MD

Pulmonary Disease · San Jose

NPI 1700142189

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
11
4 carriers
Office
1

Offices

1 location · County of Santa Clara · 1,000 clinicians in this group

Looking this up.

Hospitals listed: Santa Clara Valley Medical Center. That is not proof they admit you there this week.

Plans that list them

11 plans · 4 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Duong’s office at (408) 885-5000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

11 of 11 plans

Plans whose provider directory lists this clinician
Anthem Full Dual Advantage Aligned (HMO D-SNP)Anthem Blue CrossListedOct 3, 2026
Central Health Classic Care Plan III (HMO)Central Health Medicare PlanListedAug 15, 2026
Central Health Dual Access Plan (HMO D-SNP)Central Health Medicare PlanListedAug 15, 2026
Central Health Embrace Care Plan (HMO C-SNP)Central Health Medicare PlanListed, may be out of dateSep 15, 2025
Central Health Embrace Choice Plan (HMO C-SNP)Central Health Medicare PlanListedAug 15, 2026
Central Health Valor Care Plan (HMO)Central Health Medicare PlanListedAug 15, 2026
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A128595 · Current

Licensed to practise in California · since 2014 · expires 2027-04-30 · Case Western Reserve University School of Medicine.

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

State licence records

1 licence

  • Illinois 036137335Licensed Physician And Surgeon · since 2015 · expires 2020-09-30
    Not RenewedNo 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.

  • Santa Clara Valley Medical CenterSan Jose, CAAcute Care Hospital · Government - Local · Has an emergency department · Birthing-friendlyPart of Santa Clara Valley Health and Hospital System, which runs 3 hospitalsPatients rate it 3 of 5 · 70% would definitely recommend it
    Overall rating: 2 of 5 starsWorse than the national rate — SSI - Colon Surgery: 2.572, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.563, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.256, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.369, Oct 2024 – Sep 2025
See every measure and the patient survey for Santa Clara Valley Medical Center

Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 2 better, 5 the same, 1 worse of 8 measures. Readmissions: 0 better, 10 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.

Every scored measure at Santa Clara Valley Medical Center
SSI - Colon SurgeryInfections2.572WorseOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.563BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.256BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0.369BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.25 (0.3 to 2.2) · 1,535 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.07 (0.76 to 1.38)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths214.59 (167.38 to 261.8) · 108 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.8 · 41 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6 · 141 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.2 · 124 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths8.3 · 501 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths14.9 · 653 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.1 · 348 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3 · 4,502 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.24 (0.04 to 0.43) · 9,014 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.34 (0.15 to 0.52) · 9,216 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.54 (2.51 to 6.58) · 1,421 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.54 (0 to 3.2) · 288 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.11 (0.66 to 3.56) · 1,446 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths11.61 (4.09 to 19.14) · 294 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths7.29 (3.39 to 11.2) · 299 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.9 (0.45 to 3.36) · 333 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.23 (0 to 0.78) · 7,538 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths5.4 · 94 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.735No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections2.573No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.6 · 185 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits22.1 · 951 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits56.3 · 128 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits6.4 · 644 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits1.3 · 699 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.3 · 921 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.7 (3.9 to 8.1) · 226 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits12.6 (9.4 to 16.5) · 226 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.4 · 94 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits11.4 · 54 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.3 · 242 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.2 (9.9 to 17.4) · 702 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits1 (0.7 to 1.4) · 195 casesNo differentJan 2024 – Dec 2024

What patients said (4,032 patients answered, 29% of those asked)

Patient survey stars by topic at Santa Clara Valley Medical Center
Cleanliness3
Nurse communication3
Doctor communication3
Communication about medicines3
Discharge information2
Overall hospital rating3
Quietness2
Recommend hospital4
Share of patients giving the best answer at Santa Clara Valley Medical Center
Room was "always" clean70%
Nurses "always" communicated well73%
Doctors "always" communicated well76%
Staff "always" explained57%
Yes, staff "did" give patients this information82%
Yes, staff "did" give patients information about help after discharge82%
Doctors "always" explained things so they could understand71%
Doctors "always" listened carefully74%
Doctors "always" treated them with courtesy and respect82%
Patients who gave a rating of "9" or "10" (high)67%
Staff "always" explained new medications71%
Nurses "always" explained things so they could understand71%
Nurses "always" listened carefully69%
Nurses "always" treated them with courtesy and respect80%
"Always" quiet at night43%
"YES", patients would definitely recommend the hospital70%
Staff "always" explained possible side effects44%
Yes, staff "did" give patients information about possible symptoms83%

Original Medicare doctor bills

$48,163

Medicare paid this office $48,163 for 194 people.

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

Largest Original Medicare bills
Critical care, first 30-74 minutes64$30,225$181
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes23$3,092$107
Return visit (30+ min)30$2,827$86
Short return visit (20+ min)41$2,408$55
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes18$2,228$117
See all 10 services
Every Original Medicare service billed
Critical care, first 30-74 minutes64$30,225$181
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes23$3,092$107
Return visit (30+ min)30$2,827$86
Short return visit (20+ min)41$2,408$55
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes18$2,228$117
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes21$1,842$71
New patient visit (45+ min)12$1,441$120
Test to determine lung volumes using sensors18$181$10
Test to examine how well the lungs exchange gases13$94$7
Test to measure expiratory airflow and volume12$87$7

Who their Medicare patients are

194 Original Medicare patients in 2024. Average age 72 · Under 65 17% · 85 and older 16% · Women 50% · Also on Medicaid 79% · Health risk score 3.18. Above the middle of the specialty; the typical pulmonary disease clinician is at 2.13.

Conditions among them: High blood pressure 75% · Diabetes 57% · Heart failure 46% · Chronic kidney disease 44% · COPD 41% · Coronary heart disease 33% · Atrial fibrillation 31% · Depression 27% · Dementia 23% · Stroke 23% · Cancer 21%.

The office billed $516,649, Medicare allowed $62,020 and paid $48,163; for 425 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

Original Medicare by year
2024194425723.18$516,649$48,163
2023197378712.95$408,639$42,110
2022204475712.60$567,156$64,398
2021169357702.18$410,063$49,862
2020212536702.72$650,998$81,562
2019120225702.41$238,067$26,187

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

Original Medicare services billed in 2023
Critical care, first 30-74 minutes50$24,015$197
Short return visit (20+ min)69$4,331$56
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes24$3,101$76
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes18$2,578$112
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes20$2,509$119
Return visit (30+ min)26$1,897$70

2022: 6 services

Original Medicare services billed in 2022
Critical care, first 30-74 minutes63$43,930$224
Short return visit (20+ min)80$5,559$59
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes33$4,781$114
Return visit (30+ min)21$1,931$88
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes15$1,768$77
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes12$1,733$133

2021: 7 services

Original Medicare services billed in 2021
Critical care, first 30-74 minutes53$35,313$224
Short return visit (20+ min)45$3,218$62
Return visit (30+ min)22$2,090$95
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes15$1,775$81
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes12$1,766$118
Telephone medical discussion with physician, 21-30 minutes18$1,667$93
Telephone medical discussion with physician, 5-10 minutes15$503$31

2020: 6 services

Original Medicare services billed in 2020
Critical care, first 30-74 minutes78$67,759$234
Telephone medical discussion with physician, 11-20 minutes56$3,135$47
Short return visit (20+ min)46$2,264$41
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes12$2,088$80
Return visit (30+ min)19$1,240$65
Telephone medical discussion with physician, 21-30 minutes11$739$62

2019: 3 services

Original Medicare services billed in 2019
Critical care, first 30-74 minutes40$19,321$195
Short return visit (20+ min)42$2,105$45
Return visit (30+ min)12$849$71

Medicaid work

$11,780 in 2024

Medicaid paid $11,780 for 580 billed services this clinician did in 2024, up to 25 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.

Largest Medicaid services in 2024
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes217$10,853
Short return visit (20+ min)70$653
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES19$135
Plethysmography for determination of lung volumes and, when performed, airway resistance38$68
Diffusing capacity38$44
Spirometry, including graphic record, total and timed vital capacity, expiratory flow rate measurement(s), with or without maximal voluntary ventilation22$27
Medication list documented in medical record (COA)97$0
Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD)15$0
Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM)64$0
Medicaid work by year
2024580925$11,780
2023487833$6,838
2022237229$2,979
2021306224$10,776
2020417227$23,920
2019274531$10,485
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes208$6,052
Short return visit (20+ min)181$619
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES15$150
Plethysmography for determination of lung volumes and, when performed, airway resistance12$18
Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD)12$0
Most recent systolic blood pressure greater than or equal to 140 mm Hg (HTN, CKD, CAD) (DM)13$0
Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM)33$0
IP/OBS CONSLTJ NEW/EST PT MOD MDM 60 MINUTES13$0

2022

Largest Medicaid services in 2022
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes47$2,088
Short return visit (20+ min)190$892

2021

Largest Medicaid services in 2021
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes201$10,307
Short return visit (20+ min)105$469

2020

Largest Medicaid services in 2020
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes371$23,687
Short return visit (20+ min)46$233

2019

Largest Medicaid services in 2019
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes183$10,359
Short return visit (20+ min)46$127
Spirometry, including graphic record, total and timed vital capacity, expiratory flow rate measurement(s), with or without maximal voluntary ventilation15$0
Plethysmography for determination of lung volumes and, when performed, airway resistance15$0
Diffusing capacity15$0

Drugs they prescribed that Part D paid

$551,100

Pharmacies billed $551,100 in 2024.

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

Opioids were 0% of their Part D prescriptions (0 of 543) in 2024. At or below the middle of the specialty; the typical pulmonary disease clinician is at 0%.

186 generic and 357 brand-name prescriptions · $551,100 in drug cost · 15 antibiotic prescriptions.

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.

Largest Part D drug costs
Ambrisentan27$215,622$7,986
Ofev13$158,675$12,206
Nucala11$37,427$3,402
Spiriva Respimat33$23,234$704
Spiriva Handihaler35$20,579$588
See all 18 drugs
Every Part D drug this clinician prescribed
Ambrisentan27$215,622$7,986
Ofev13$158,675$12,206
Nucala11$37,427$3,402
Spiriva Respimat33$23,234$704
Spiriva Handihaler35$20,579$588
Breo Ellipta45$20,357$452
Anoro Ellipta24$10,319$430
Incruse Ellipta29$9,362$323
Atrovent Hfa18$8,680$482
Budesonide-Formoterol19$4,429$233
Wixela Inhub22$2,838$129
Symbicort11$2,353$214
Albuterol Sulfate Hfa56$2,312$41
Ventolin Hfa15$835$56
Azithromycin12$278$23
Montelukast19$249$13
Fluticasone Propionate29$182$6
Prednisone11$66$6

Year by year

Part D prescribing by year
20245431150% (0)66%$551,100
2023524920% (0)68%$489,644
20225961050% (0)68%$511,743
2021509940% (0)68%$393,766
2020363850% (0)72%$172,016
201986390% (0)57%$16,789
201839120% (0)79%$10,588
2017192300% (0)68%$44,673
2016134270% (0)70%$27,541
201524130% (0)None$2,347

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 17 drugs

Part D drugs prescribed in 2023
Ofev15$194,463$12,964
Ambrisentan12$119,132$9,928
Symbicort67$29,422$439
Spiriva Handihaler37$23,183$627
Advair Diskus48$21,748$453
Breo Ellipta23$11,536$502
Spiriva Respimat18$9,856$548
Incruse Ellipta19$7,347$387
Anoro Ellipta14$7,000$500
Atrovent Hfa11$4,487$408
Wixela Inhub12$1,960$163
Albuterol Sulfate Hfa46$1,951$42
Ventolin Hfa25$1,575$63
Fluticasone Propionate33$620$19
Montelukast21$326$16
Azithromycin11$258$23
Prednisone13$95$7

2022: 19 drugs

Part D drugs prescribed in 2022
Ofev20$244,173$12,209
Ambrisentan21$122,306$5,824
Symbicort71$27,979$394
Advair Diskus59$26,489$449
Spiriva Handihaler35$24,013$686
Anoro Ellipta18$8,691$483
Breo Ellipta20$7,471$374
Incruse Ellipta16$6,879$430
Eliquis11$6,778$616
Atrovent Hfa14$6,232$445
Spiriva Respimat11$5,328$484
Wixela Inhub21$4,281$204
Albuterol Sulfate Hfa65$3,780$58
Ventolin Hfa21$1,309$62
Levalbuterol Tartrate Hfa11$645$59
Fluticasone Propionate21$214$10
Prednisone21$167$8
Pantoprazole18$161$9
Montelukast20$131$7

2021: 17 drugs

Part D drugs prescribed in 2021
Ofev22$221,452$10,066
Advair Diskus66$34,821$528
Spiriva38$24,772$652
Breo Ellipta27$9,879$366
Symbicort31$9,211$297
Anoro Ellipta16$7,293$456
Incruse Ellipta14$6,619$473
Eliquis12$6,387$532
Wixela Inhub18$6,070$337
Spiriva Respimat11$5,126$466
Atrovent Hfa12$4,992$416
Albuterol Sulfate Hfa36$1,678$47
Ventolin Hfa12$859$72
Azithromycin16$221$14
Montelukast21$142$7
Fluticasone Propionate15$114$8
Prednisone15$111$7

2020: 10 drugs

Part D drugs prescribed in 2020
Advair Diskus37$23,345$631
Incruse Ellipta35$14,231$407
Spiriva23$12,152$528
Symbicort34$12,078$355
Spiriva Respimat18$8,008$445
Albuterol Sulfate Hfa31$1,334$43
Ventolin Hfa16$950$59
Fluticasone Propionate17$147$9
Montelukast20$128$6
Prednisone12$87$7

2018: 1 drug

Part D drugs prescribed in 2018
Spiriva13$5,348$411

2017: 8 drugs

Part D drugs prescribed in 2017
Symbicort27$13,035$483
Spiriva30$12,138$405
Incruse Ellipta14$5,625$402
Advair Diskus14$5,382$384
Proair Hfa16$1,003$63
Ventolin Hfa14$879$63
Fluticasone Propionate15$173$12
Prednisone22$142$6

2016: 5 drugs

Part D drugs prescribed in 2016
Spiriva28$10,200$364
Symbicort21$8,238$392
Advair Diskus11$3,177$289
Proair Hfa18$994$55
Prednisone27$203$8

Money from drug and device companies

$22 in 2025

Industry payments by year
202511None$22
202411None$23
202312None$652

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

A payment is not proof that care is biased.

Payments by company
Actelion Pharmaceuticals USUptravi$22
1 payment
  • Meals for Uptravi · 2025-05-07 · $22
See the published payment
Every published payment
Actelion Pharmaceuticals USMeals · 2025-05-07Uptravi$22
See earlier years (2024, 2023)

2024: $23

Payments by company in 2024
Actelion Pharmaceuticals USUptravi$23
1 payment
  • Meals for Uptravi · 2024-09-16 · $23

2023: $652

Payments by company in 2023
Noah MedicalNone$652
2 payments
  • Travel · 2023-11-21 · $153
  • Travel · 2023-11-09 · $499

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
80.6 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1700142189
Licence
CA A128595, IL 036137335California A128595: Current · expires 2027-04-30Illinois 036137335: Not Renewed
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
Yes
Taxonomy
Federal specialty code 207RP1001X (207RP1001X); Internal medicine (207R00000X)
Mailing address
751 S Bascom Ave, San Jose, CA, 95128
NPI first listed
2012-04-10
NPI last updated
2019-06-24

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