Esther Yun, MD
Obstetrics/Gynecology · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 13
- 1 carrier
- Office
- 1
Offices
1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Plans that list them
13 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Yun’s office at (408) 358-1888 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Sutter Advantage +More (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
California Medical Board record
Licence A133166 · Current
Licensed to practise in California · since 2014 · expires 2028-01-31 · Umdnj New Jersey Medical School.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$3,546
Medicare paid this office $3,546 for 25 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Procedures Medicare counted
| Removal of the uterus | 1-10 | None |
Who their Medicare patients are
25 Original Medicare patients in 2024. Average age 70 · 85 and older 0% · Women 100% · Also on Medicaid 0% · Health risk score 0.75. At or below the middle of the specialty; the typical obstetrics & gynecology clinician is at 0.88.
Conditions among them: High blood pressure 75%.
The office billed $14,236, Medicare allowed $5,065 and paid $3,546; for 38 services of 10 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 | 25 | 38 | 70 | 0.75 | $14,236 | $3,546 |
| 2023 | 16 | 31 | 75 | 1.64 | $11,803 | $3,067 |
| 2022 | 30 | 501 | 71 | 0.86 | $16,784 | $4,121 |
| 2021 | 22 | 484 | 70 | 0.68 | $9,059 | $2,701 |
| 2020 | 24 | 644 | 67 | 0.85 | $12,146 | $3,032 |
| 2019 | 22 | 32 | 70 | 0.66 | $19,062 | $4,332 |
| 2018 | 34 | 61 | 72 | 0.75 | $15,388 | $3,673 |
| 2017 | 22 | 35 | 67 | 0.71 | $8,677 | $2,212 |
| 2016 | 19 | 36 | 69 | 0.79 | $9,228 | $2,389 |
| 2015 | 21 | 37 | 67 | 0.78 | $10,608 | $3,057 |
| 2014 | 18 | 25 | 69 | 0.60 | $6,482 | $1,988 |
| 2013 | 28 | 45 | 62 | 0.75 | $6,993 | $2,681 |
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
2022: 1 service
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 13 | $630 | $48 |
2018: 1 service
| Short return visit (20+ min) | 14 | $822 | $48 |
2013: 1 service
| Short return visit (20+ min) | 12 | $685 | $49 |
Drugs they prescribed that Part D paid
$6,025
Pharmacies billed $6,025 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 45) in 2024. Too few prescriptions to compare fairly with other clinicians.
27 generic and 18 brand-name prescriptions · $6,025 in drug cost.
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.
| Prempro | 12 | $2,792 | $233 |
Year by year
| 2024 | 45 | 14 | 0% (0) | 40% | $6,025 |
| 2023 | 57 | 15 | 0% (0) | 28% | $3,520 |
| 2022 | 24 | 11 | 0% (0) | None | $2,275 |
| 2021 | 18 | None | 0% (0) | None | $2,033 |
| 2020 | 36 | 15 | 0% (0) | 31% | $6,102 |
| 2019 | 43 | 15 | None | 35% | $4,423 |
| 2018 | 47 | 15 | 0% (0) | 23% | $7,558 |
| 2017 | 38 | None | 0% (0) | 34% | $2,473 |
| 2016 | 33 | 13 | 0% (0) | None | $2,873 |
| 2015 | 26 | 14 | None | None | $3,729 |
| 2013 | 27 | 12 | None | 44% | $2,809 |
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
| Estradiol (Twice Weekly) | 14 | $830 | $59 |
2019: 1 drug
| Prempro | 11 | $2,104 | $191 |
2017: 1 drug
| Progesterone | 12 | $1,107 | $92 |
Money from drug and device companies
$48 in 2022
A payment is not proof that care is biased.
| Ethicon US | Surgicel Nu-Knit | $48 | 1 payment
|
See the published payment
| Ethicon US | Meals · 2022-10-17 | Surgicel Nu-Knit | $48 |
Professional record
- NPI
- 1992951214
- Licence
- CA A133166, MA 244447California A133166: Current · expires 2028-01-31
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207V00000X (207V00000X)
- Mailing address
- 2350 W. El Camino Real, 2nd Floor, Mountain View, CA, 94040
- NPI first listed
- 2008-08-18
- NPI last updated
- 2016-03-30
This is when the NPI record was last certified, not a medical board exam.