Lisa Wen-Wen Yang, MD
Emergency Medicine · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location
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. Yang’s office at (408) 972-6140 to ask if they take your plan before you enroll.
California Medical Board record
Licence A117334 · Current
Licensed to practise in California · since 2011 · expires 2026-12-31 · Wayne State University School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$893
Medicare paid this office $893 for 12 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Who their Medicare patients are
12 Original Medicare patients in 2024. Average age 75 · Health risk score 0.98. At or below the middle of the specialty; the typical emergency medicine clinician is at 2.01.
The office billed $8,064, Medicare allowed $1,704 and paid $893; for 13 services of 4 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 | 12 | 13 | 75 | 0.98 | $8,064 | $893 |
| 2023 | 13 | 13 | 69 | 1.33 | $7,895 | $1,079 |
| 2021 | 18 | 19 | 64 | 1.85 | $8,839 | $1,798 |
| 2020 | 25 | 26 | 71 | 3.04 | $12,780 | $2,804 |
| 2019 | 35 | 42 | 67 | 2.23 | $16,739 | $3,168 |
| 2018 | 21 | 22 | 63 | 2.21 | $8,863 | $1,815 |
| 2017 | 24 | 24 | 74 | 2.04 | $10,962 | $2,169 |
| 2016 | 25 | 25 | 69 | 1.43 | $11,694 | $2,276 |
| 2015 | 30 | 32 | 69 | 2.17 | $14,665 | $2,805 |
| 2014 | 63 | 67 | 69 | 2.57 | $34,013 | $6,728 |
| 2013 | 34 | 39 | 65 | 1.87 | $19,019 | $3,429 |
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
2021: 1 service
| Emergency department visit with moderate level of medical decision making | 12 | $1,024 | $85 |
2020: 1 service
| Emergency department visit with moderate level of medical decision making | 14 | $1,387 | $92 |
2019: 1 service
| Emergency department visit with moderate level of medical decision making | 20 | $1,922 | $96 |
2018: 1 service
| Emergency department visit with moderate level of medical decision making | 14 | $1,382 | $92 |
2016: 1 service
| Emergency department visit with moderate level of medical decision making | 11 | $791 | $72 |
2015: 2 services
| Emergency department visit with high level of medical decision making | 12 | $1,381 | $115 |
| Emergency department visit with moderate level of medical decision making | 12 | $1,284 | $99 |
2014: 2 services
| Emergency department visit with high level of medical decision making | 24 | $3,490 | $145 |
| Emergency department visit with moderate level of medical decision making | 29 | $2,647 | $88 |
2013: 1 service
| Emergency department visit with moderate level of medical decision making | 14 | $1,129 | $81 |
Medicaid work
$2,442 in 2024
Medicaid paid $2,442 for 16 billed services this clinician did in 2024, up to 16 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 | 16 | $2,442 |
| 2024 | 16 | 1 | 16 | $2,442 |
| 2023 | 103 | 2 | 19 | $1,271 |
| 2022 | 33 | 1 | 17 | $262 |
| 2021 | 37 | 2 | 19 | $515 |
| 2019 | 28 | 1 | 15 | $601 |
| 2018 | 62 | 2 | 17 | $1,056 |
See the largest Medicaid services in earlier years
2023
| EMERGENCY DEPT VISIT MOD MDM | 88 | $1,141 |
| EMERGENCY DEPT VISIT LOW MDM | 15 | $129 |
2022
| EMERGENCY DEPT VISIT LOW MDM | 33 | $262 |
2021
| EMERGENCY DEPT VISIT MOD MDM | 19 | $341 |
| EMERGENCY DEPT VISIT LOW MDM | 18 | $174 |
2019
| EMERGENCY DEPT VISIT MOD MDM | 28 | $601 |
2018
| EMERGENCY DEPT VISIT MOD MDM | 46 | $797 |
| EMERGENCY DEPT VISIT LOW MDM | 16 | $259 |
Drugs they prescribed that Part D paid
$2,351
Pharmacies billed $2,351 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 12% of their Part D prescriptions (18 of 146) in 2024. Above the middle of the specialty; the typical emergency medicine clinician is at 12%.
139 generic and fewer than 11 brand-name prescriptions · $2,351 in drug cost · 33 antibiotic prescriptions to 31 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.
| Acetaminophen-Codeine | 13 | $121 | $9 |
| Ondansetron Odt | 11 | $70 | $6 |
Year by year
| 2024 | 146 | 93 | 12% (18) | None | $2,351 |
| 2023 | 130 | 91 | None | None | $6,788 |
| 2022 | 59 | 45 | None | None | $1,613 |
| 2021 | 87 | 55 | None | None | $1,776 |
| 2020 | 78 | 49 | None | None | $1,848 |
| 2019 | 151 | 98 | 13% (20) | 8% | $8,288 |
| 2018 | 101 | 75 | 15% (15) | None | $3,093 |
| 2017 | 105 | 67 | None | 15% | $2,622 |
| 2016 | 115 | 75 | 17% (19) | 16% | $4,211 |
| 2015 | 172 | 116 | 17% (30) | None | $11,414 |
| 2014 | 243 | 161 | 25% (60) | 9% | $4,130 |
| 2013 | 151 | 104 | 19% (28) | 11% | $2,848 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 1 drug
| Ondansetron Odt | 11 | $68 | $6 |
2019: 2 drugs
| Tizanidine | 13 | $110 | $8 |
| Ondansetron | 14 | $82 | $6 |
2016: 2 drugs
| Acetaminophen-Codeine | 14 | $127 | $9 |
| Ondansetron Odt | 14 | $113 | $8 |
2015: 3 drugs
| Ondansetron Odt | 23 | $207 | $9 |
| Hydrocodone-Acetaminophen | 13 | $169 | $13 |
| Acetaminophen-Codeine | 11 | $113 | $10 |
2014: 6 drugs
| Ondansetron Odt | 30 | $420 | $14 |
| Acetaminophen-Codeine | 24 | $244 | $10 |
| Hydrocodone-Acetaminophen | 28 | $214 | $8 |
| Ciprofloxacin | 18 | $147 | $8 |
| Cephalexin | 11 | $119 | $11 |
| Ibuprofen | 11 | $82 | $7 |
2013: 3 drugs
| Ondansetron Odt | 14 | $193 | $14 |
| Hydrocodone-Acetaminophen | 17 | $123 | $7 |
| Ciprofloxacin | 12 | $89 | $7 |
Professional record
- NPI
- 1922266451
- Licence
- CA A117334California A117334: Current · expires 2026-12-31
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207P00000X (207P00000X)
- Mailing address
- 250 Hospital Pkwy, San Jose, CA, 95119
- NPI first listed
- 2008-05-31
- NPI last updated
- 2021-12-15
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.