KIROLLOS ZAKI D.O
NPI 1104270305
Internal Medicine - Nephrology in Riverside, CA

Active since April 14, 2016PECOS EnrolledAccepts Medicare Assignment
57.62/100
CMS Quality Rating
3660 PARK SIERRA DR STE 208, RIVERSIDE, CA 92505(951) 687-2800(951) 687-7290 Get Directions Write a Review

NPPES record last updated: September 2, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 2, 2022, May 11, 2022, Dec 6, 2021 and 1 more (4 updates tracked since 2019).

About Kirollos Zaki D.o NPPES

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

KIROLLOS ZAKI D.O (NPI 1104270305) is an individual nephrology provider in Riverside, California, licensed in California (20A16166) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and is a graduate of Kansas City University Of Physicians And Surgeons (2016).

NPPES Registry Identity

NPI1104270305
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameKIROLLOS ZAKICredential: D.O
Location Address3660 PARK SIERRA DR STE 208Riverside, CA 92505-3071
Mailing Address3660 Park Sierra Dr Ste 203Riverside, CA 92505-3071 · (951) 687-3400 · Fax (951) 687-7630
Fax(951) 687-7290
Sole ProprietorNo
Medical School CMSKansas City University Of Physicians And SurgeonsGraduated 2016
Enumeration DateApril 14, 2016
Last NPPES UpdateSeptember 2, 20224 updates tracked since enumeration
NPPES CertifiedSeptember 2, 2022
NPI 1104270305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in CA · 20A16166
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License 16166 (CA)
3660 PARK SIERRA DR STE 208, Riverside, CA 92505

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

Kirollos Zaki D.o 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 ID1658611801
PECOS Enrollment IDI20190326000136
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 10

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
370 services131 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
318 services131 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
214 services36 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
105 services99 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.
83 services44 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
31 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92505 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

57.62/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality49.17
Promoting Interoperability0
Improvement Activities40
Cost59.58

Other Providers at the Same Location NPPES 5

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

Nurse Practitioner
3660 PARK SIERRA DR STE 208
RIVERSIDE, CA 92505
Nurse Practitioner (Family)
3660 PARK SIERRA DR STE 208
RIVERSIDE, CA 92505
Internal Medicine (Nephrology)
3660 PARK SIERRA DR STE 208
RIVERSIDE, CA 92505
Nurse Practitioner (Family)
3660 PARK SIERRA DR STE 208
RIVERSIDE, CA 92505
Nurse Practitioner (Family)
3660 PARK SIERRA DR STE 208
RIVERSIDE, CA 92505

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 Kirollos Zaki's NPI number?

The NPI number for Kirollos Zaki is 1104270305. It was assigned to this individual provider in the NPPES registry on April 14, 2016.

Where is Kirollos Zaki located?

Kirollos Zaki practices at 3660 Park Sierra Dr Ste 208, Riverside, CA 92505. The listed phone number is (951) 687-2800.

What is Kirollos Zaki's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Kirollos Zaki enrolled in Medicare?

Yes. Kirollos Zaki 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 Kirollos Zaki was last updated on September 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.