In-Hei Hahn, MD
Emergency Medicine · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 1
- 1 carrier
- Office
- 1
Offices
1 location · Stanford Health Care · 3,152 clinicians in this group
Looking this up.
Hospitals listed: Stanford Health Care. That is not proof they admit you there this week.
Plans that list them
1 plan · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Hahn’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence C154183 · Current
Licensed to practise in California · since 2018 · expires 2027-06-30 · University of Maryland School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
State licence records
1 licence
- New Jersey 25MA09628000Medical Doctor · since 2015 · expires 2021-06-30InactiveNo 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.
- Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend itOverall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Stanford Health Care
Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 2 better, 5 the same, 4 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 5.31 (4.24 to 6.37) · 8,661 cases | Worse | Jul 2022 – Jun 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 14.1 (12.7 to 15.7) · 2,191 cases | Worse | Jan 2024 – Dec 2024 |
| Postoperative respiratory failure rateComplications and deaths | 4.08 (1.95 to 6.21) · 5,296 cases | Better | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.317 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.446 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.241 | Better | Oct 2024 – Sep 2025 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.7 (0.6 to 0.9) · 3,348 cases | Better | Jan 2024 – Dec 2024 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.06 (0.45 to 1.67) · 5,374 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.86 (0.72 to 1) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 166.09 (137.88 to 194.3) · 470 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.1 · 192 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6.4 · 146 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 9.7 · 253 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 6.3 · 880 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 10.3 · 935 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.7 · 501 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.1 · 7,730 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.13 (0 to 0.27) · 20,799 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.28 (0.14 to 0.43) · 23,182 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 0.94 (0.2 to 1.68) · 5,694 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.36 (1.54 to 3.19) · 7,846 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.2 (3.76 to 6.64) · 5,603 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.38 (0.23 to 2.53) · 2,211 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.52 (0.21 to 0.83) · 19,915 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.6 · 416 cases | None | Apr 2023 – Mar 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.869 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.857 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.368 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 16.2 · 247 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.5 · 1,021 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 47.8 · 258 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -1.6 · 990 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 20.8 · 976 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.5 · 959 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.2 (4.4 to 6.2) · 2,191 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.1 · 425 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.6 · 158 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.6 · 183 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.7 (10.4 to 15.4) · 4,578 cases | No different | Jan 2022 – Dec 2024 |
What patients said (6,810 patients answered, 25% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 82% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 63% |
| Yes, staff "did" give patients this information | 89% |
| Yes, staff "did" give patients information about help after discharge | 89% |
| 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) | 79% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 77% |
| Nurses "always" listened carefully | 79% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 53% |
| "YES", patients would definitely recommend the hospital | 83% |
| Staff "always" explained possible side effects | 50% |
| Yes, staff "did" give patients information about possible symptoms | 90% |
Original Medicare doctor bills
$23,057
Medicare paid this office $23,057 for 157 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Emergency department visit with high level of medical decision making | 98 | $14,269 | $146 |
| Critical care, first 30-74 minutes | 27 | $4,819 | $178 |
| Emergency department visit with moderate level of medical decision making | 24 | $2,257 | $94 |
Who their Medicare patients are
157 Original Medicare patients in 2024. Average age 76 · Under 65 13% · 85 and older 29% · Women 53% · Also on Medicaid 51% · Health risk score 2.15. Above the middle of the specialty; the typical emergency medicine clinician is at 2.01.
Conditions among them: High blood pressure 75% · Diabetes 46% · Coronary heart disease 38% · Chronic kidney disease 36% · Heart failure 32% · Depression 25% · Dementia 25% · Atrial fibrillation 24% · COPD 22% · Cancer 12% · Stroke 11%.
The office billed $189,135, Medicare allowed $29,724 and paid $23,057; for 178 services of 15 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 | 157 | 178 | 76 | 2.15 | $189,135 | $23,057 |
| 2023 | 168 | 187 | 76 | 2.52 | $218,516 | $25,975 |
| 2022 | 175 | 192 | 75 | 2.39 | $215,940 | $26,458 |
| 2021 | 187 | 216 | 74 | 2.30 | $229,145 | $31,004 |
| 2020 | 186 | 210 | 74 | 2.58 | $213,055 | $28,211 |
| 2019 | 124 | 150 | 71 | 2.56 | $147,245 | $15,964 |
| 2018 | 57 | 64 | 69 | 2.18 | $69,269 | $6,976 |
| 2017 | 81 | 106 | 70 | 1.79 | $84,259 | $13,167 |
| 2016 | 68 | 73 | 68 | 1.92 | $41,620 | $7,325 |
| 2015 | 111 | 133 | 69 | 1.93 | $65,607 | $12,307 |
| 2014 | 13 | 14 | 62 | 1.00 | $10,441 | $1,634 |
| 2013 | 136 | 145 | 72 | 2.14 | $91,768 | $14,864 |
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: 3 services
| Emergency department visit with high level of medical decision making | 93 | $13,957 | $148 |
| Critical care, first 30-74 minutes | 35 | $6,672 | $191 |
| Emergency department visit with moderate level of medical decision making | 32 | $3,246 | $101 |
2022: 3 services
| Emergency department visit with high level of medical decision making | 86 | $13,056 | $152 |
| Critical care, first 30-74 minutes | 26 | $4,999 | $192 |
| Emergency department visit with moderate level of medical decision making | 42 | $4,788 | $114 |
2021: 3 services
| Emergency department visit with high level of medical decision making | 107 | $17,383 | $158 |
| Emergency department visit with moderate level of medical decision making | 44 | $5,285 | $120 |
| Critical care, first 30-74 minutes | 17 | $3,404 | $200 |
2020: 3 services
| Emergency department visit with high level of medical decision making | 126 | $19,841 | $156 |
| Emergency department visit with moderate level of medical decision making | 32 | $3,350 | $105 |
| Critical care, first 30-74 minutes | 12 | $2,434 | $203 |
2019: 4 services
| Emergency department visit with high level of medical decision making | 73 | $11,039 | $151 |
| Emergency department visit with moderate level of medical decision making | 23 | $2,334 | $101 |
| Emergency department visit with low level of medical decision making | 11 | $544 | $49 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 17 | $132 | $7 |
2018: 2 services
| Emergency department visit with high level of medical decision making | 38 | $5,083 | $134 |
| Emergency department visit with moderate level of medical decision making | 13 | $940 | $72 |
2017: 2 services
| Emergency department visit with high level of medical decision making | 45 | $8,716 | $189 |
| Emergency department visit with moderate level of medical decision making | 18 | $2,385 | $133 |
2016: 3 services
| Emergency department visit with high level of medical decision making | 27 | $4,194 | $155 |
| Emergency department visit with moderate level of medical decision making | 15 | $1,558 | $104 |
| Emergency department visit with low level of medical decision making | 25 | $1,391 | $53 |
2015: 3 services
| Emergency department visit with high level of medical decision making | 36 | $5,703 | $154 |
| Emergency department visit with moderate level of medical decision making | 35 | $3,897 | $105 |
| Emergency department visit with low level of medical decision making | 37 | $1,507 | $41 |
2013: 3 services
| Emergency department visit with high level of medical decision making | 53 | $7,647 | $142 |
| Emergency department visit with moderate level of medical decision making | 45 | $4,329 | $96 |
| Short return visit (20+ min) | 17 | $926 | $54 |
Medicaid work
$20,117 in 2024
Medicaid paid $20,117 for 908 billed services this clinician did in 2024, up to 71 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.
| EMERGENCY DEPT VISIT MOD MDM | 261 | $7,829 |
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 123 | $5,981 |
| Service | 116 | $2,160 |
| Service | 28 | $1,593 |
| EMERGENCY DEPT VISIT LOW MDM | 70 | $1,119 |
| Electrocardiogram, routine ECG with at least 12 leads; tracing only, without interpretation and report | 45 | $418 |
| Infectious agent antigen detection by immunoassay technique (eg, enzyme immunoassay [EIA], enzyme-linked immunosorbent assay [ELISA], fluorescence immunoassay [FIA], immunochemiluminometric assay [IMCA]), qualitative or semiquantitative; Influenza, A or B, each | 13 | $365 |
| COMPREHENSIVE METABOLIC PANEL | 93 | $317 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) | 95 | $202 |
| Troponin, quantitative | 25 | $68 |
| Radiologic examination, chest; single view | 24 | $56 |
| Infusion, normal saline solution , 1000 cc | 15 | $11 |
| 2024 | 908 | 12 | 71 | $20,117 |
| 2023 | 1,408 | 20 | 59 | $32,711 |
| 2022 | 977 | 7 | 65 | $32,493 |
| 2021 | 736 | 5 | 43 | $29,643 |
| 2020 | 478 | 5 | 54 | $21,263 |
| 2019 | 309 | 5 | 35 | $8,345 |
| 2018 | 71 | 3 | 16 | $1,996 |
See the largest Medicaid services in earlier years
2023
| EMERGENCY DEPT VISIT MOD MDM | 409 | $14,810 |
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 227 | $8,759 |
| EMERGENCY DEPT VISIT LOW MDM | 151 | $3,086 |
| Service | 129 | $2,034 |
| CT ABDOMEN & PELVIS W/CONTRAST MATERIAL | 12 | $1,164 |
| Service | 82 | $1,067 |
| Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); intravenous push, single or initial substance/drug | 12 | $363 |
| EMERGENCY DEPARTMENT VISIT STRAIGHTFORWARD MDM | 17 | $244 |
| COMPREHENSIVE METABOLIC PANEL | 83 | $231 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) | 111 | $195 |
| 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc | 12 | $183 |
| SARSCOV CORONAVIRUS AG IA | 14 | $140 |
2022
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 276 | $14,057 |
| EMERGENCY DEPT VISIT MOD MDM | 290 | $10,062 |
| EMERGENCY DEPT VISIT LOW MDM | 290 | $5,805 |
| Service | 51 | $1,835 |
| Service | 15 | $508 |
| COMPREHENSIVE METABOLIC PANEL | 27 | $135 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) | 28 | $90 |
2021
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 303 | $17,060 |
| EMERGENCY DEPT VISIT MOD MDM | 197 | $8,031 |
| EMERGENCY DEPT VISIT LOW MDM | 198 | $4,441 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) | 26 | $63 |
| COMPREHENSIVE METABOLIC PANEL | 12 | $48 |
2020
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 238 | $13,214 |
| EMERGENCY DEPT VISIT MOD MDM | 115 | $4,481 |
| EMERGENCY DEPT VISIT LOW MDM | 94 | $2,628 |
| Service | 18 | $940 |
| Service(s) provided between 10:00 PM and 8:00 AM at 24-hour facility, in addition to basic service | 13 | $0 |
2019
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 105 | $4,869 |
| EMERGENCY DEPT VISIT MOD MDM | 81 | $1,970 |
| EMERGENCY DEPT VISIT LOW MDM | 68 | $1,057 |
| Service | 17 | $347 |
| Return visit (30+ min) | 38 | $102 |
2018
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 28 | $1,096 |
| EMERGENCY DEPT VISIT MOD MDM | 27 | $690 |
| EMERGENCY DEPT VISIT LOW MDM | 16 | $210 |
Money from drug and device companies
$139 in 2024
A payment is not proof that care is biased.
| Bausch & Lomb Americas | Xipere | $139 | 1 payment
|
See the published payment
| Bausch & Lomb Americas | Meals · 2024-05-03 | Xipere | $139 |
Professional record
- NPI
- 1962575647
- Licence
- CA C154183, NJ 25MA09628000, NY 210546California C154183: Current · expires 2027-06-30New Jersey 25MA09628000: Inactive
- Trained
- University of Maryland School of Medicine, 1995
- Group
- Stanford Health Care
- Gender
- Female
More record details
- Sole proprietor
- No
- Medicaid ID
- NY 01884362
- Taxonomy
- Federal specialty code 207P00000X (207P00000X); Federal specialty code 207PT0002X (207PT0002X); Physician assistant (363A00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2006-11-17
- NPI last updated
- 2024-03-22
- NPI record certified
- 2024-03-22
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 1000 Tenth Avenue, Rm Ge-01, New York, NY, 10019