Mark Thanassi, MD
Emergency Medicine · Santa Clara
- 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. Thanassi’s office at (408) 236-6400 to ask if they take your plan before you enroll.
California Medical Board record
Licence G86578 · Current
Licensed to practise in California · since 2002 · expires 2028-05-31 · University of Vermont College of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$3,022
Medicare paid this office $3,022 for 25 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Emergency department visit with moderate level of medical decision making | 13 | $1,317 | $94 |
Who their Medicare patients are
25 Original Medicare patients in 2024. Average age 62 · Under 65 44% · Women 56% · Health risk score 1.54. At or below the middle of the specialty; the typical emergency medicine clinician is at 2.01.
Conditions among them: High blood pressure 60%.
The office billed $18,792, Medicare allowed $3,903 and paid $3,022; for 27 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 | 25 | 27 | 62 | 1.54 | $18,792 | $3,022 |
| 2023 | 24 | 24 | 66 | 3.32 | $15,859 | $2,525 |
| 2022 | 26 | 31 | 65 | 1.90 | $15,447 | $2,765 |
| 2021 | 19 | 19 | 66 | 2.64 | $9,864 | $2,082 |
| 2020 | 11 | 11 | 67 | 2.89 | $5,826 | $1,304 |
| 2019 | 20 | 20 | 71 | 2.08 | $10,694 | $2,050 |
| 2017 | 17 | 17 | 68 | 1.74 | $8,207 | $1,694 |
| 2016 | 14 | 14 | 64 | 2.15 | $5,797 | $1,325 |
| 2015 | 13 | 13 | 66 | 2.47 | $6,474 | $1,487 |
| 2014 | 12 | 13 | 71 | 1.29 | $6,231 | $1,133 |
| 2013 | 11 | 11 | 57 | 3.17 | $5,000 | $923 |
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: 1 service
| Emergency department visit with moderate level of medical decision making | 13 | $1,300 | $100 |
2021: 1 service
| Emergency department visit with moderate level of medical decision making | 11 | $944 | $86 |
Medicaid work
$16,001 in 2024
Medicaid paid $16,001 for 167 billed services this clinician did in 2024, up to 23 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 | 92 | $12,326 |
| EMERGENCY DEPT VISIT LOW MDM | 75 | $3,675 |
| 2024 | 167 | 2 | 23 | $16,001 |
| 2023 | 101 | 2 | 16 | $1,373 |
| 2022 | 27 | 1 | 14 | $134 |
| 2021 | 28 | 1 | 15 | $253 |
See the largest Medicaid services in earlier years
2023
| EMERGENCY DEPT VISIT MOD MDM | 57 | $848 |
| EMERGENCY DEPT VISIT LOW MDM | 44 | $525 |
2022
| EMERGENCY DEPT VISIT LOW MDM | 27 | $134 |
2021
| EMERGENCY DEPT VISIT MOD MDM | 28 | $253 |
Drugs they prescribed that Part D paid
$5,691
Pharmacies billed $5,691 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
169 generic and fewer than 11 brand-name prescriptions · $5,691 in drug cost · 42 antibiotic prescriptions to 42 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.
| Alvesco | 17 | $1,252 | $74 |
| Albuterol Sulfate Hfa | 16 | $260 | $16 |
| Prednisone | 21 | $138 | $7 |
| Naproxen | 17 | $137 | $8 |
| Ondansetron Odt | 14 | $87 | $6 |
Year by year
| 2024 | 212 | 131 | None | None | $5,691 |
| 2023 | 236 | 163 | 5% (11) | None | $6,726 |
| 2022 | 181 | 148 | 7% (13) | None | $3,555 |
| 2021 | 91 | 78 | None | 15% | $2,211 |
| 2020 | 88 | 77 | 14% (12) | 13% | $1,804 |
| 2019 | 98 | 82 | 11% (11) | 26% | $5,131 |
| 2018 | 106 | 79 | None | 25% | $3,882 |
| 2017 | 98 | 82 | None | 20% | $3,754 |
| 2016 | 140 | 129 | None | 16% | $2,585 |
| 2015 | 145 | 126 | None | 14% | $3,026 |
| 2014 | 77 | 67 | None | None | $1,154 |
| 2013 | 107 | 98 | None | 17% | $1,924 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 4 drugs
| Albuterol Sulfate Hfa | 12 | $220 | $18 |
| Prednisone | 16 | $111 | $7 |
| Ondansetron Odt | 13 | $79 | $6 |
| Sulfamethoxazole-Trimethoprim | 12 | $73 | $6 |
2022: 4 drugs
| Cephalexin | 24 | $280 | $12 |
| Albuterol Sulfate Hfa | 12 | $196 | $16 |
| Ondansetron Odt | 15 | $92 | $6 |
| Hydrocodone-Acetaminophen | 13 | $87 | $7 |
2021: 1 drug
| Ondansetron Odt | 13 | $91 | $7 |
2020: 1 drug
| Cephalexin | 21 | $175 | $8 |
2019: 2 drugs
| Cephalexin | 14 | $112 | $8 |
| Ondansetron Odt | 11 | $105 | $10 |
2018: 1 drug
| Cephalexin | 18 | $164 | $9 |
2017: 2 drugs
| Polymyxin B Sul-Trimethoprim | 16 | $148 | $9 |
| Cephalexin | 15 | $145 | $10 |
2016: 3 drugs
| Cephalexin | 26 | $252 | $10 |
| Sulfamethoxazole-Trimethoprim | 28 | $197 | $7 |
| Polymyxin B Sul-Trimethoprim | 12 | $111 | $9 |
2015: 4 drugs
| Cephalexin | 21 | $192 | $9 |
| Polymyxin B Sul-Trimethoprim | 19 | $178 | $9 |
| Sulfamethoxazole-Trimethoprim | 23 | $167 | $7 |
| Ciprofloxacin | 11 | $94 | $9 |
2014: 1 drug
| Sulfamethoxazole-Trimethoprim | 21 | $131 | $6 |
2013: 1 drug
| Sulfamethoxazole-Trimethoprim | 34 | $215 | $6 |
Money from drug and device companies
$29 in 2019
A payment is not proof that care is biased.
| Salix Pharmaceuticals a division of Bausch Health US | Xifaxan | $29 | 1 payment
|
See the published payment
| Salix Pharmaceuticals a division of Bausch Health US | Meals · 2019-10-29 | Xifaxan | $29 |
Professional record
- NPI
- 1104903038
- Licence
- CA G86578California G86578: Current · expires 2028-05-31
More record details
- Sole proprietor
- No
- Medicaid ID
- CA 00G865780
- Taxonomy
- Federal specialty code 207P00000X (207P00000X)
- Mailing address
- 1800 Harrison St Fl 7, Oakland, CA, 94612
- NPI first listed
- 2006-10-31
- NPI last updated
- 2021-12-17
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.