Kevin S. Ernsting, 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. Ernsting’s office at (408) 972-7000 to ask if they take your plan before you enroll.
California Medical Board record
Licence A74128 · Current
Licensed to practise in California · since 2001 · expires 2028-10-31 · University of Michigan Medical School.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Medicaid work
$2,775 in 2024
Medicaid paid $2,775 for 64 billed services this clinician did in 2024, up to 14 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.
| Short return visit (20+ min) | 64 | $2,775 |
| 2024 | 64 | 1 | 14 | $2,775 |
| 2023 | 26 | 2 | 13 | $0 |
| 2021 | 27 | 1 | 14 | $0 |
See the largest Medicaid services in earlier years
2023
| Short return visit | 13 | $0 |
| Short return visit (20+ min) | 13 | $0 |
2021
| Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m service provided within the previous 7 days nor leading to an e/m service or procedure within the next 24 hours or soonest available appointment; 5-10 minutes of medical discussion | 27 | $0 |
Drugs they prescribed that Part D paid
$3,443
Pharmacies billed $3,443 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 10% of their Part D prescriptions (18 of 174) in 2024. At or below the middle of the specialty; the typical emergency medicine clinician is at 12%.
160 generic and 14 brand-name prescriptions · $3,443 in drug cost · 75 antibiotic prescriptions to 73 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.
| Cefadroxil | 36 | $444 | $12 |
| Amoxicillin-Clavulanate Potass | 11 | $395 | $36 |
| Hydrocodone-Acetaminophen | 12 | $96 | $8 |
| Prednisone | 12 | $78 | $6 |
Year by year
| 2024 | 174 | 141 | 10% (18) | 8% | $3,443 |
| 2023 | 161 | 123 | 8% (12) | 7% | $2,708 |
| 2022 | 132 | 124 | 0% (0) | None | $2,829 |
| 2021 | 44 | 23 | 0% (0) | 75% | $10,490 |
| 2020 | 73 | 38 | None | 16% | $6,530 |
| 2019 | 183 | 135 | 19% (35) | 17% | $9,677 |
| 2018 | 214 | 151 | 24% (51) | 10% | $4,964 |
| 2017 | 133 | 84 | 14% (18) | 16% | $4,612 |
| 2016 | 209 | 147 | 23% (47) | 10% | $3,492 |
| 2015 | 204 | 147 | 22% (44) | 12% | $3,636 |
| 2014 | 227 | 156 | 20% (46) | None | $5,809 |
| 2013 | 156 | 114 | 27% (42) | 8% | $3,318 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 2 drugs
| Amoxicillin-Clavulanate Potass | 13 | $226 | $17 |
| Meloxicam | 12 | $76 | $6 |
2022: 1 drug
| Paxlovid (Eua) | 113 | $1,557 | $14 |
2018: 5 drugs
| Ondansetron Odt | 22 | $188 | $9 |
| Acetaminophen-Codeine | 16 | $171 | $11 |
| Hydrocodone-Acetaminophen | 19 | $156 | $8 |
| Prednisone | 14 | $149 | $11 |
| Ciprofloxacin | 17 | $135 | $8 |
2017: 1 drug
| Ondansetron Odt | 16 | $189 | $12 |
2016: 5 drugs
| Ondansetron Odt | 26 | $250 | $10 |
| Prednisone | 11 | $232 | $21 |
| Acetaminophen-Codeine | 19 | $214 | $11 |
| Hydrocodone-Acetaminophen | 15 | $199 | $13 |
| Ciprofloxacin | 19 | $184 | $10 |
2015: 4 drugs
| Hydrocodone-Acetaminophen | 20 | $377 | $19 |
| Ondansetron Odt | 26 | $258 | $10 |
| Ciprofloxacin | 17 | $216 | $13 |
| Acetaminophen-Codeine | 11 | $115 | $10 |
2014: 5 drugs
| Ondansetron Odt | 20 | $261 | $13 |
| Hydrocodone-Acetaminophen | 28 | $219 | $8 |
| Cephalexin | 14 | $173 | $12 |
| Prednisone | 15 | $141 | $9 |
| Azithromycin | 13 | $138 | $11 |
2013: 4 drugs
| Ondansetron Odt | 17 | $216 | $13 |
| Ciprofloxacin | 18 | $167 | $9 |
| Hydrocodone-Acetaminophen | 20 | $151 | $8 |
| Acetaminophen-Codeine | 12 | $130 | $11 |
Money from drug and device companies
$121 in 2025
| 2025 | 1 | 1 | None | $121 |
| 2020 | 1 | 1 | None | $125 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Salix Pharmaceuticals a division of Bausch Health US | Xifaxan | $121 | 1 payment
|
See the published payment
| Salix Pharmaceuticals a division of Bausch Health US | Meals · 2025-11-11 | Xifaxan | $121 |
See earlier years (2020)
2020: $125
| Eisai | Lenvima | $125 | 1 payment
|
Professional record
- NPI
- 1518043025
- Licence
- CA A74128California A74128: Current · expires 2028-10-31
More record details
- Sole proprietor
- No
- Medicaid ID
- CA 00A741280
- Taxonomy
- Federal specialty code 207P00000X (207P00000X)
- Mailing address
- 1800 Harrison St Fl 7, Oakland, CA, 94612
- NPI first listed
- 2006-10-27
- NPI last updated
- 2021-12-22
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.