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DR. JELENA M KAO MD
NPI 1932242062
Internal Medicine - Hematology & Oncology in San Mateo, CA

Active since February 15, 2007PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
218 DE ANZA BLVD, SAN MATEO, CA 94402(650) 341-9131(650) 341-9135 Get Directions Write a Review

NPPES record last updated: April 29, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Jelena M Kao Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JELENA M KAO MD (NPI 1932242062) is an individual hematology & oncology provider in San Mateo, California, licensed in California (A83980) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2005).

NPPES Registry Identity

NPI1932242062
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameDR. JELENA M KAOCredential: MD
Location Address218 DE ANZA BLVDSan Mateo, CA 94402-3913
Mailing Address218 De Anza BlvdSan Mateo, CA 94402-3913 · (650) 341-9131 · Fax (650) 341-9135
Phone(650) 341-9131
Fax(650) 341-9135
Sole ProprietorNo
Medical School CMSStanford University School Of MedicineGraduated 2005
Enumeration DateFebruary 15, 2007
Last NPPES UpdateApril 29, 2025
NPPES CertifiedApril 29, 2025
✔ NPI 1932242062 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses✔ Licensed in CA · A83980✔ Licensed in HI · MD-24166
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
218 DE ANZA BLVD, San Mateo, CA 94402
Open in Google Maps ↗

Other Names 1

Former Name (1)Dr. Jelena Milojevic Md

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jelena M Kao Md 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.

PECOS PAC ID5698937571
PECOS Enrollment IDI20120911000349
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
42 services42 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
21 services20 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
15 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KENT MARC-JOSEF ADLER M.D.
Internal Medicine (Hematology & Oncology)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (650) 341-9131
DR. DANIEL RENGSTORFF M.D.
Internal Medicine (Gastroenterology)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (650) 341-9131
KATRINA SESLINE LCSW, MPH
Social Worker (Clinical)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (415) 420-6389
ELHAM VOSOUGHI M.D.
Internal Medicine (Hematology & Oncology)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (650) 341-9131
DONALD TIMOTHY SCHAUKOWITCH N.P.
Nurse Practitioner (Family)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (650) 341-9131
RYAN CHANG
Internal Medicine (Medical Oncology)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (415) 514-7520
MATTHEW HYUN JOON LEE D.O.
Internal Medicine (Medical Oncology)
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (650) 341-9131
MRS. SUZANNE HEIDI KEENAN APRN
Nurse Practitioner
218 DE ANZA BLVD
SAN MATEO, CA 94402
San Mateo County (650) 341-9131

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 Jelena Kao's NPI number?

The NPI number for Jelena Kao is 1932242062. It was assigned to this individual provider in the NPPES registry on February 15, 2007. The provider is also known as Dr. Jelena Milojevic MD.

Where is Jelena Kao located?

Jelena Kao practices at 218 De Anza Blvd, San Mateo, CA 94402. The listed phone number is (650) 341-9131.

What is Jelena Kao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Jelena Kao enrolled in Medicare?

Yes. Jelena Kao 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.

When was this NPI record last updated?

The NPPES record for Jelena Kao was last updated on April 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.