YELENA KRIJANOVSKI M.D.
NPI 1497877500
Internal Medicine - Hematology & Oncology in Fairfield, CA
About Yelena Krijanovski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YELENA KRIJANOVSKI M.D. (NPI 1497877500) is an individual hematology & oncology provider in Fairfield, California, licensed in California (A106347) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Berkeley, and is a graduate of Other (1994).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Yelena Krijanovski M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Yelena Krijanovski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orinda, CA 94563
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94534 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FAIRFIELD, CA 94534
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Yelena Krijanovski's NPI number?
The NPI number for Yelena Krijanovski is 1497877500. It was assigned to this individual provider in the NPPES registry on April 6, 2007.
Where is Yelena Krijanovski located?
Yelena Krijanovski practices at 2702 Low Ct, Fairfield, CA 94534. The listed phone number is (707) 427-4900.
What is Yelena Krijanovski's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Yelena Krijanovski enrolled in Medicare?
Yes. Yelena Krijanovski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Yelena Krijanovski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yelena Krijanovski reassigns Medicare benefits to Sutter Bay Medical Foundation (Orinda, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yelena Krijanovski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Yelena Krijanovski was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.