Katherine Ransohoff, M.D.
Dermatology Physician · Palo Alto, CA
Katherine Ransohoff, M.D. is a dermatology physician with a practice address in Palo Alto, California, and NPI 1972964880, issued on Mar 19, 2016. Check the license (California A150430, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Ransohoff
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A150430 CA
Self-reported in NPPES; status is on the state search - Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 853-2982
- Enumerated
- Mar 19, 2016
- Record last updated
- Jul 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200713002725); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 795 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hamza AbbasiInternal Medicine Physician1821545484
- Arman Abdalkhani, MDOtolaryngology Physician1356536130
- Sara AbrahamsInternal Medicine Physician1952988354
- Nana Efua Adabie, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1437647732
- Amy Adams, M.D.Dermatology Physician1679643928
- William Adams, DPMFoot & Ankle Surgery Podiatrist1447487830
Verify Katherine Ransohoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A150430Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average dermatology physician in 2024
371 Medicare Part D claims for 161 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Triamcinolone Acetonide41 claims
- Ketoconazole36 claims
- Clobetasol Propionate31 claims
- Hydrocortisone21 claims
- Mupirocin20 claims
- Metronidazole15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $115.91
5 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationPalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Ransohoff among 2,083 dermatology physician records in California
Katherine Ransohoff, M.D. is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 80% of them.
- NPI issued2016 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2016 · median 2006 among the 1,450 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Palo Alto → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Amy Adams, M.D.Palo Alto, CA 943011679643928
- David Deneau, MDPalo Alto, CA 943011770594699
- John Doux, M.D.Palo Alto, CA 943011205856473
- Karen Han, MDPalo Alto, CA 943011811908692
- Gordon Herron, MDPalo Alto, CA 943011427069228
- Thomas Hoffman, M.D.Palo Alto, CA 943011063435741
- Kathleen Kramer, MDPalo Alto, CA 943011902817711
- Julie Letsinger, MDPalo Alto, CA 943011871541565
Common questions
What is Katherine Ransohoff, M.D.'s NPI number?
Katherine Ransohoff, M.D.'s National Provider Identifier (NPI) is 1972964880, issued on Mar 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Ransohoff, M.D. located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 853-2982. Providers update this record themselves, so call before visiting.
How can I verify Katherine Ransohoff, M.D.'s license?
NPPES lists California license number A150430, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Ransohoff, M.D. prescribe under Medicare Part D?
In 2024, Katherine Ransohoff, M.D. had 371 Medicare Part D claims for 161 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.