Katherine Ransohoff, MD
Dermatology · Palo Alto
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 14
- 2 carriers
- Office
- 1
Offices
1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Looking this up.
Plans that list them
14 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Ransohoff’s office at (415) 600-1020 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
14 of 14 plans
| 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 |
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence A150430 · Current
Licensed to practise in California · since 2017 · expires 2028-10-31 · Stanford University School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$56,918
Medicare paid this office $56,918 for 304 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Return visit (30+ min) | 170 | $21,033 | $96 |
| Short return visit (20+ min) | 128 | $9,852 | $69 |
| Destruction of skin growth, 1-14 growths | 52 | $6,379 | $100 |
| Destruction of precancer skin growth, 1 growth | 104 | $6,039 | $49 |
| Biopsy of related skin growth, first growth | 42 | $4,136 | $88 |
See all 8 services
| Return visit (30+ min) | 170 | $21,033 | $96 |
| Short return visit (20+ min) | 128 | $9,852 | $69 |
| Destruction of skin growth, 1-14 growths | 52 | $6,379 | $100 |
| Destruction of precancer skin growth, 1 growth | 104 | $6,039 | $49 |
| Biopsy of related skin growth, first growth | 42 | $4,136 | $88 |
| Destruction of precancer skin growth, 2-14 growths | 75 | $2,173 | $7 |
| Short return visit | 24 | $1,124 | $45 |
| New patient visit (30+ min) | 11 | $805 | $73 |
Procedures Medicare counted
| Removal of skin lesions | 623 | More than 89% of doctors who do this |
| Removal or shaving of skin growth | 1-10 | None |
| Skin biopsy | 160 | More than 82% of doctors who do this |
Who their Medicare patients are
304 Original Medicare patients in 2024. Average age 77 · Women 69% · Health risk score 0.80. At or below the middle of the specialty; the typical dermatology clinician is at 1.01.
Conditions among them: High blood pressure 53% · Coronary heart disease 17% · Chronic kidney disease 17% · Cancer 17% · Diabetes 13% · Atrial fibrillation 13% · Depression 11% · Heart failure 6% · COPD 4%.
The office billed $220,996, Medicare allowed $87,829 and paid $56,918; for 1,018 services of 26 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 | 304 | 1,018 | 77 | 0.80 | $220,996 | $56,918 |
| 2023 | 501 | 2,012 | 76 | 0.85 | $434,098 | $126,526 |
| 2022 | 275 | 842 | 76 | 0.77 | $212,857 | $58,275 |
| 2021 | 410 | 1,591 | 76 | 0.79 | $384,861 | $121,264 |
| 2020 | 136 | 394 | 76 | 0.81 | $92,508 | $27,504 |
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: 12 services
| Return visit (30+ min) | 244 | $39,089 | $109 |
| Short return visit (20+ min) | 218 | $20,078 | $73 |
| Destruction of skin growth, 1-14 growths | 115 | $15,720 | $108 |
| Destruction of precancer skin growth, 1 growth | 175 | $11,346 | $51 |
| Biopsy of related skin growth, first growth | 89 | $9,426 | $93 |
| New patient visit (45+ min) | 32 | $4,671 | $146 |
| New patient visit (30+ min) | 58 | $4,457 | $77 |
| Destruction of precancer skin growth, 2-14 growths | 127 | $4,287 | $7 |
| Long return visit (40+ min) | 25 | $4,175 | $155 |
| Short return visit | 44 | $2,388 | $51 |
| Punch biopsy, first skin growth | 14 | $1,711 | $122 |
| Biopsy of related skin growth, each additional growth | 15 | $918 | $51 |
2022: 10 services
| Return visit (30+ min) | 112 | $16,741 | $104 |
| Short return visit (20+ min) | 123 | $10,092 | $66 |
| Destruction of skin growth, 1-14 growths | 49 | $6,201 | $100 |
| Biopsy of related skin growth, first growth | 52 | $4,980 | $91 |
| Destruction of precancer skin growth, 1 growth | 61 | $3,710 | $48 |
| Long return visit (40+ min) | 20 | $2,978 | $135 |
| New patient visit (30+ min) | 38 | $2,374 | $62 |
| New patient visit (45+ min) | 12 | $1,653 | $138 |
| Destruction of precancer skin growth, 2-14 growths | 36 | $828 | $6 |
| Short return visit | 22 | $767 | $33 |
2021: 14 services
| Return visit (30+ min) | 134 | $23,469 | $118 |
| Short return visit (20+ min) | 202 | $21,618 | $79 |
| Biopsy of related skin growth, first growth | 108 | $12,484 | $102 |
| Destruction of skin growth, 1-14 growths | 75 | $11,056 | $115 |
| New patient visit (30+ min) | 94 | $8,128 | $86 |
| Destruction of precancer skin growth, 1 growth | 113 | $7,184 | $51 |
| Long return visit (40+ min) | 25 | $5,733 | $169 |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | 15 | $4,838 | $323 |
| New patient visit (45+ min) | 22 | $3,094 | $141 |
| Punch biopsy, first skin growth | 21 | $2,991 | $136 |
| Destruction of precancer skin growth, 2-14 growths | 75 | $2,191 | $7 |
| Short return visit | 35 | $1,769 | $48 |
| Biopsy of related skin growth, each additional growth | 20 | $1,281 | $56 |
| New patient visit (15+ min) | 13 | $719 | $55 |
2020: 9 services
| Short return visit (20+ min) | 61 | $5,068 | $69 |
| Biopsy of related skin growth, first growth | 33 | $3,337 | $95 |
| Destruction of skin growth, 1-14 growths | 24 | $2,792 | $112 |
| Return visit (30+ min) | 23 | $2,340 | $94 |
| Destruction of precancer skin growth, 1 growth | 34 | $2,177 | $52 |
| New patient visit (15+ min) | 28 | $1,789 | $64 |
| New patient visit (30+ min) | 12 | $1,150 | $96 |
| Destruction of precancer skin growth, 2-14 growths | 20 | $556 | $6 |
| Short return visit | 11 | $498 | $45 |
Drugs they prescribed that Part D paid
$112,949
Pharmacies billed $112,949 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
341 generic and 30 brand-name prescriptions · $112,949 in drug cost · 19 antibiotic prescriptions.
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.
| Dupixent | 11 | $37,606 | $3,419 |
| Fluorouracil | 13 | $1,058 | $81 |
| Metronidazole | 15 | $1,037 | $69 |
| Clobetasol Propionate | 31 | $845 | $27 |
| Estradiol | 11 | $720 | $65 |
See all 12 drugs
| Dupixent | 11 | $37,606 | $3,419 |
| Fluorouracil | 13 | $1,058 | $81 |
| Metronidazole | 15 | $1,037 | $69 |
| Clobetasol Propionate | 31 | $845 | $27 |
| Estradiol | 11 | $720 | $65 |
| Ketoconazole | 36 | $652 | $18 |
| Nystatin-Triamcinolone | 15 | $538 | $36 |
| Triamcinolone Acetonide | 41 | $396 | $10 |
| Fluconazole | 13 | $246 | $19 |
| Nystatin | 14 | $221 | $16 |
| Hydrocortisone | 21 | $175 | $8 |
| Mupirocin | 20 | $158 | $8 |
Year by year
| 2024 | 371 | 161 | None | 8% | $112,949 |
| 2023 | 664 | 251 | None | 5% | $38,425 |
| 2022 | 458 | 176 | 0% (0) | 4% | $22,329 |
| 2021 | 653 | 220 | None | 2% | $27,533 |
| 2020 | 210 | 92 | None | None | $8,798 |
| 2019 | 32 | 23 | 0% (0) | None | $1,470 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 19 drugs
| Fluocinonide | 43 | $3,244 | $75 |
| Clobetasol Propionate | 53 | $3,169 | $60 |
| Ketoconazole | 65 | $1,710 | $26 |
| Fluorouracil | 21 | $1,639 | $78 |
| Metronidazole | 17 | $1,378 | $81 |
| Estradiol | 18 | $934 | $52 |
| Clindamycin Phosphate | 17 | $860 | $51 |
| Desonide | 14 | $833 | $60 |
| Triamcinolone Acetonide | 74 | $828 | $11 |
| Doxycycline Hyclate | 26 | $818 | $31 |
| Econazole Nitrate | 19 | $665 | $35 |
| Nystatin | 27 | $665 | $25 |
| Nystatin-Triamcinolone | 14 | $538 | $38 |
| Mupirocin | 38 | $403 | $11 |
| Hydrocortisone | 44 | $400 | $9 |
| Doxycycline Monohydrate | 12 | $364 | $30 |
| Fluconazole | 25 | $360 | $14 |
| Valacyclovir | 13 | $269 | $21 |
| Cephalexin | 11 | $66 | $6 |
2022: 14 drugs
| Clobetasol Propionate | 45 | $4,836 | $107 |
| Estradiol | 16 | $1,955 | $122 |
| Fluorouracil | 15 | $1,548 | $103 |
| Fluocinonide | 24 | $1,261 | $53 |
| Ketoconazole | 43 | $1,258 | $29 |
| Tretinoin | 12 | $1,111 | $93 |
| Triamcinolone Acetonide | 80 | $872 | $11 |
| Metronidazole | 12 | $689 | $57 |
| Nystatin | 18 | $463 | $26 |
| Clindamycin Phosphate | 12 | $432 | $36 |
| Doxycycline Hyclate | 12 | $301 | $25 |
| Mupirocin | 25 | $292 | $12 |
| Hydrocortisone | 33 | $237 | $7 |
| Fluconazole | 14 | $168 | $12 |
2021: 16 drugs
| Clobetasol Propionate | 32 | $4,218 | $132 |
| Estradiol | 16 | $2,557 | $160 |
| Ketoconazole | 92 | $2,501 | $27 |
| Fluocinonide | 32 | $2,120 | $66 |
| Fluorouracil | 22 | $2,065 | $94 |
| Metronidazole | 13 | $1,147 | $88 |
| Triamcinolone Acetonide | 84 | $1,004 | $12 |
| Mupirocin | 64 | $580 | $9 |
| Doxycycline Hyclate | 25 | $515 | $21 |
| Hydrocortisone | 59 | $431 | $7 |
| Ciclopirox | 12 | $371 | $31 |
| Nystatin | 19 | $266 | $14 |
| Clindamycin Phosphate | 13 | $190 | $15 |
| Hydroxyzine | 18 | $148 | $8 |
| Prednisone | 13 | $134 | $10 |
| Gabapentin | 12 | $94 | $8 |
2020: 6 drugs
| Fluocinonide | 16 | $1,332 | $83 |
| Clobetasol Propionate | 13 | $935 | $72 |
| Triamcinolone Acetonide | 42 | $584 | $14 |
| Ketoconazole | 22 | $583 | $27 |
| Hydrocortisone | 20 | $215 | $11 |
| Mupirocin | 13 | $109 | $8 |
Money from drug and device companies
$909 in 2025
| 2025 | 12 | 40 | None | $909 |
| 2024 | 4 | 5 | None | $116 |
| 2023 | 1 | 1 | None | $15 |
| 2021 | 2 | 2 | None | $117 |
| 2020 | 1 | 1 | None | $22 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Arcutis Biotherapeutics | Zoryve | $235 | 13 payments
|
| Sun Pharmaceutical Industries | None | $100 | 1 payment
|
| Galderma Laboratories L.P. | Nemluvio | $91 | 4 payments
|
| Regeneron Healthcare Solutions | Dupixent | $85 | 5 payments
|
| Lilly USA | Taltz | $75 | 3 payments
|
| Organon | Vtama | $74 | 4 payments
|
See all 40 published payments
| Amgen | Meals · 2025-12-10 | Otezla | $22 |
| Incyte | Meals · 2025-12-09 | Opzelura | $21 |
| Ucb | Meals · 2025-12-02 | Bimzelx | $30 |
| Arcutis Biotherapeutics | Meals · 2025-11-26 | Zoryve | $12 |
| Amgen | Meals · 2025-11-21 | Otezla | $20 |
| Arcutis Biotherapeutics | Meals · 2025-11-15 | Zoryve | $17 |
| Sun Pharmaceutical Industries | Education · 2025-11-13 | None | $100 |
| Galderma Laboratories L.P. | Meals · 2025-10-17 | Nemluvio | $31 |
| Arcutis Biotherapeutics | Meals · 2025-10-17 | Zoryve | $17 |
| Organon | Meals · 2025-10-16 | Nexplanon | $16 |
| Regeneron Healthcare Solutions | Meals · 2025-10-14 | Dupixent | $14 |
| Arcutis Biotherapeutics | Meals · 2025-10-07 | Zoryve | $21 |
| Lilly USA | Meals · 2025-09-30 | Taltz | $27 |
| Arcutis Biotherapeutics | Meals · 2025-09-30 | Zoryve | $5 |
| Regeneron Healthcare Solutions | Meals · 2025-09-23 | Dupixent | $18 |
| Organon | Meals · 2025-09-16 | Vtama | $26 |
| Galderma Laboratories L.P. | Meals · 2025-09-09 | Nemluvio | $21 |
| Abbvie | Meals · 2025-09-02 | Skyrizi | $32 |
| LEO Pharma | Meals · 2025-08-26 | Adbry | $21 |
| Galderma Laboratories L.P. | Meals · 2025-08-21 | Nemluvio | $19 |
| Arcutis Biotherapeutics | Meals · 2025-08-01 | Zoryve | $16 |
| Regeneron Healthcare Solutions | Meals · 2025-07-29 | Dupixent | $17 |
| Organon | Meals · 2025-07-11 | Vtama | $15 |
| Arcutis Biotherapeutics | Meals · 2025-07-08 | Zoryve | $28 |
| Ucb | Meals · 2025-06-24 | Bimzelx | $30 |
| Almirall | Meals · 2025-06-17 | Klisyri | $21 |
| Incyte | Meals · 2025-06-10 | Opzelura | $30 |
| Arcutis Biotherapeutics | Meals · 2025-05-29 | Zoryve | $18 |
| Arcutis Biotherapeutics | Meals · 2025-05-09 | Zoryve | $16 |
| Lilly USA | Meals · 2025-05-06 | Taltz | $23 |
| Regeneron Healthcare Solutions | Meals · 2025-04-29 | Dupixent | $18 |
| Arcutis Biotherapeutics | Meals · 2025-03-25 | Zoryve | $26 |
| Organon | Meals · 2025-03-21 | Vtama | $17 |
| Arcutis Biotherapeutics | Meals · 2025-03-13 | Zoryve | $17 |
| Galderma Laboratories L.P. | Meals · 2025-03-11 | Nemluvio | $21 |
| Almirall | Meals · 2025-03-06 | Klisyri | $24 |
| Regeneron Healthcare Solutions | Meals · 2025-02-18 | Dupixent | $19 |
| Arcutis Biotherapeutics | Meals · 2025-02-18 | Zoryve | $14 |
| Lilly USA | Meals · 2025-02-11 | Ebglyss | $25 |
| Arcutis Biotherapeutics | Meals · 2025-01-24 | Zoryve | $27 |
See earlier years (2024, 2023, 2021, 2020)
2024: $116
| Lilly USA | Taltz | $45 | 2 payments
|
| Galderma Laboratories L.P. | None | $28 | 1 payment
|
| Incyte | Opzelura | $25 | 1 payment
|
| Regeneron Healthcare Solutions | Dupixent | $19 | 1 payment
|
2023: $15
| Pfizer | Cibinqo | $15 | 1 payment
|
2021: $117
| Regeneron Healthcare Solutions | Dupixent | $100 | 1 payment
|
| Almirall | Seysara | $17 | 1 payment
|
2020: $22
| AbbVie | Skyrizi | $22 | 1 payment
|
Professional record
- NPI
- 1972964880
- Licence
- CA A150430California A150430: Current · expires 2028-10-31
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 207N00000X (207N00000X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2016-03-19
- NPI last updated
- 2020-07-06
- NPI record certified
- 2020-07-06
This is when the NPI record was last certified, not a medical board exam.