Mary D Surdilla, PA
Physician Assistant · Fremont
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Offices
- 2
- Since medical school
- 25 years
- Graduated 2001
Offices
2 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Mary D Surdilla’s office to ask if they take your plan before you enroll.
Original Medicare doctor bills
$15,393
Medicare paid this office $15,393 for 131 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Return visit (30+ min) | 51 | $5,165 | $88 |
| Short return visit (20+ min) | 44 | $2,895 | $60 |
| New patient visit (30+ min) | 33 | $2,425 | $73 |
| New patient visit (45+ min) | 12 | $1,454 | $121 |
Who their Medicare patients are
131 Original Medicare patients in 2024. Average age 73 · Women 66% · Also on Medicaid 14% · Health risk score 0.84. At or below the middle of the specialty; the typical physician assistant clinician is at 1.31.
Conditions among them: High blood pressure 63% · Diabetes 28% · Coronary heart disease 21% · Chronic kidney disease 15% · Cancer 15% · Depression 15% · Heart failure 11% · Atrial fibrillation 11%.
The office billed $61,248, Medicare allowed $21,447 and paid $15,393; for 201 services of 25 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 | 131 | 201 | 73 | 0.84 | $61,248 | $15,393 |
| 2023 | 122 | 170 | 73 | 0.78 | $53,356 | $14,743 |
| 2022 | 112 | 146 | 73 | 1.10 | $44,401 | $11,999 |
| 2021 | 52 | 67 | 73 | 0.99 | $20,434 | $5,793 |
| 2020 | 39 | 42 | 68 | 0.86 | $6,885 | $1,862 |
| 2019 | 124 | 179 | 72 | 1.22 | $38,543 | $9,448 |
| 2018 | 112 | 161 | 72 | 1.16 | $35,747 | $7,674 |
| 2017 | 113 | 139 | 71 | 1.16 | $32,813 | $7,414 |
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: 4 services
| Return visit (30+ min) | 39 | $4,714 | $100 |
| New patient visit (30+ min) | 41 | $3,157 | $77 |
| Short return visit (20+ min) | 33 | $2,475 | $62 |
| New patient visit (45+ min) | 11 | $1,216 | $111 |
2022: 4 services
| New patient visit (30+ min) | 40 | $3,191 | $80 |
| Return visit (30+ min) | 25 | $2,909 | $100 |
| Short return visit (20+ min) | 27 | $1,646 | $59 |
| New patient visit (45+ min) | 16 | $1,570 | $98 |
2021: 3 services
| New patient visit (45+ min) | 14 | $1,887 | $135 |
| Return visit (30+ min) | 14 | $1,532 | $102 |
| Short return visit (20+ min) | 15 | $969 | $61 |
2020: 1 service
| Short return visit (20+ min) | 15 | $517 | $34 |
2019: 3 services
| Short return visit (20+ min) | 84 | $4,707 | $51 |
| Return visit (30+ min) | 40 | $3,421 | $76 |
| Automated urinalysis test | 13 | $32 | $2 |
2018: 2 services
| Return visit (30+ min) | 49 | $3,446 | $66 |
| Short return visit (20+ min) | 67 | $3,064 | $44 |
2017: 2 services
| Return visit (30+ min) | 50 | $3,728 | $73 |
| Short return visit (20+ min) | 62 | $2,955 | $45 |
Drugs they prescribed that Part D paid
$10,511
Pharmacies billed $10,511 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
182 generic and fewer than 11 brand-name prescriptions · $10,511 in drug cost · 35 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.
| Paxlovid | 13 | $1,368 | $105 |
| Triamcinolone Acetonide | 16 | $61 | $4 |
| Azithromycin | 11 | $37 | $3 |
| Omeprazole | 16 | $36 | $2 |
| Hydrochlorothiazide | 13 | $8 | $1 |
Year by year
| 2024 | 209 | 105 | None | None | $10,511 |
| 2023 | 259 | 119 | 5% (14) | 9% | $22,112 |
| 2022 | 217 | 90 | 5% (11) | 6% | $16,329 |
| 2021 | 149 | 75 | 14% (21) | None | $6,115 |
| 2020 | 162 | 70 | 11% (17) | 7% | $3,526 |
| 2019 | 262 | 110 | 10% (25) | 13% | $8,997 |
| 2018 | 215 | 79 | 7% (15) | 11% | $6,812 |
| 2017 | 185 | 81 | 9% (17) | 25% | $10,529 |
| 2016 | 115 | 23 | 46% (53) | 16% | $3,740 |
| 2015 | 114 | 22 | 64% (73) | None | $5,114 |
| 2014 | 164 | 29 | 57% (94) | 14% | $6,347 |
| 2013 | 113 | 29 | 42% (47) | None | $2,727 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 5 drugs
| Albuterol Sulfate Hfa | 13 | $500 | $38 |
| Losartan | 11 | $443 | $40 |
| Paxlovid (Eua) | 26 | $257 | $10 |
| Triamcinolone Acetonide | 13 | $153 | $12 |
| Hydrochlorothiazide | 11 | $80 | $7 |
2022: 7 drugs
| Famotidine | 15 | $260 | $17 |
| Pantoprazole | 11 | $208 | $19 |
| Paxlovid (Eua) | 11 | $114 | $10 |
| Zolpidem | 13 | $92 | $7 |
| Gabapentin | 11 | $67 | $6 |
| Hydrochlorothiazide | 11 | $48 | $4 |
| Trazodone | 11 | $45 | $4 |
2019: 1 drug
| Naproxen | 13 | $96 | $7 |
2018: 4 drugs
| Glimepiride | 13 | $118 | $9 |
| Carvedilol | 12 | $98 | $8 |
| Glipizide | 11 | $96 | $9 |
| Naproxen | 12 | $83 | $7 |
2017: 3 drugs
| Glipizide | 22 | $211 | $10 |
| Glimepiride | 12 | $165 | $14 |
| Tramadol | 11 | $76 | $7 |
2016: 2 drugs
| Tramadol | 53 | $967 | $18 |
| Glipizide | 15 | $170 | $11 |
2015: 3 drugs
| Tramadol | 46 | $1,186 | $26 |
| Alendronate | 13 | $392 | $30 |
| Hydrocodone-Acetaminophen | 15 | $221 | $15 |
2014: 7 drugs
| Tramadol | 33 | $820 | $25 |
| Hydrocodone-Acetaminophen | 26 | $480 | $18 |
| Phenobarbital | 15 | $377 | $25 |
| Alendronate | 11 | $330 | $30 |
| Lorazepam | 11 | $203 | $18 |
| Acetaminophen-Codeine | 11 | $163 | $15 |
| Zolpidem | 12 | $127 | $11 |
2013: 3 drugs
| Hydrocodone-Acetaminophen | 25 | $382 | $15 |
| Lorazepam | 29 | $341 | $12 |
| Oxycodone-Acetaminophen | 16 | $180 | $11 |
Money from drug and device companies
$30 in 2025
| 2025 | 1 | 1 | None | $30 |
| 2024 | 1 | 1 | None | $23 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Dexcom | Dexcom G6 Transmitter | $30 | 1 payment
|
See the published payment
| Dexcom | Meals · 2025-08-04 | Dexcom G6 Transmitter | $30 |
See earlier years (2024)
2024: $23
| Exact Sciences | Cologuard Collection Kit | $23 | 1 payment
|
Professional record
- NPI
- 1407197437
- Licence
- CA PA 15975
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- Yes
- Taxonomy
- Physician assistant, medical (363AM0700X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2013-03-15
- NPI last updated
- 2020-06-08
- NPI record certified
- 2020-06-08
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 4303 Stevenson Blvd, Fremont, CA, 94538