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

Dr. Jay A Kaiser, MD

Individual provider Diagnostic Radiology Physician · NPI 1275519001

Dr. Jay A Kaiser, MD practises Diagnostic Radiology in Greenbrae, California. Graduated from Washington University School of Medicine in 1972, 54 years ago. Practices with New Century Imaging LLC, a 64-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Alaska, Arizona, California and Colorado and 11 more.

Years since qualifying
54
Trained at
Washington University School of Medicine
Licensed in
AK, AZ, CA, CO, HI, IL
In the registry since
2005
Specialties on file
15
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

1260 S Eliseo Dr Ste 100
Greenbrae, CA 94904-2009
Phone: (415) 461-9033
Fax: (415) 883-8082
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 3301 El Camino Real Ste 100, Atherton, CA 94027-3803 — (650) 364-3080
  • 24 Forrest Ct, San Anselmo, CA 94960-1179 — (415) 883-3415
  • 2351 Clay St Ste 100, San Francisco, CA 94115-1931 — (415) 600-3143

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G25290 (CA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 33865 (AZ)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 3882 (AK)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 30660 (CO)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 67 (MT)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence MA72104 (NJ)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 215258-1 (NY)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 35-06-3886-K (OH)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 21480 (OK)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence MD00032583 (WA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence SP079 (NV)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 24392 (NE)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence TM00056 (TX)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 036-103761 (IL)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 13079 (HI)

Record details

NPI number1275519001
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 22, 2005
Last updated in NPPESMay 15, 2020
Certification dateMay 15, 2020

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1972 (54 years in practice)
Group practice New Century Imaging Llc — 64 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 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 patients468
Services billed 627 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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. Those with a page here are linked.

Colleagues at New Century Imaging LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 64 clinicians in the practice; 9 are shown here.

Other providers in Greenbrae