Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Zina Semenovskaya, MD

Individual provider Emergency Medicine Physician · NPI 1255560181

Dr. Zina Semenovskaya, MD practises Emergency Medicine in Palo Alto, California. Graduated from Js Weill Medical College, Cornell University in 2009, 17 years ago. Practices with Alameda Health System, a 601-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
17
Trained at
Js Weill Medical College, Cornell University
Licensed in
CA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 Pasteur Dr
Palo Alto, CA 94304-2203 Not confirmed with CMS for 13 years — call before visiting
Phone: (718) 836-6600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A125620 (CA)

Record details

NPI number1255560181
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2009
Last updated in NPPESJuly 3, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 2009 (17 years in practice)
Group practice Alameda Health System — 601 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients367
Services billed 406 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Alameda Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 601 clinicians in the practice; 12 are shown here.

Other providers in Palo Alto