DR. KAMYAR KALANTAR-ZADEH M.D.
NPI 1457314684
Internal Medicine - Nephrology in Orange, CA

Active since April 10, 2006PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
101 THE CITY DR S, ORANGE, CA 92868(714) 880-7812 Get Directions Write a Review

NPPES record last updated: February 21, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Kamyar Kalantar-zadeh M.d. NPPES

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

DR. KAMYAR KALANTAR-ZADEH M.D. (NPI 1457314684) is an individual nephrology provider in Orange, California, licensed in California (A61298) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Torrance, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1457314684
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. KAMYAR KALANTAR-ZADEHCredential: M.D.
Location Address101 THE CITY DR SOrange, CA 92868-3201
Mailing Address200 S Manchester Ave Ste 300Orange, CA 92868-3219 · (714) 456-2986
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateApril 10, 2006
Last NPPES UpdateFebruary 21, 2023
NPPES CertifiedFebruary 21, 2023
NPI 1457314684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in CA · A61298
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.
101 THE CITY DR S, Orange, CA 92868

Secondary Practice Location 1

Location 121840 Normandie Ave, Ste. 700Torrance, CA 90502-2047 · Phone (310) 222-5101 · Fax (310) 320-5463

Other Identifiers 1

Medicaid00A612980CA

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. Kamyar Kalantar-zadeh 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.

PECOS PAC ID8224218672
PECOS Enrollment IDI20110202000479
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.4
Promoting Interoperability100
Improvement Activities40

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.

Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868

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 Kamyar Kalantar-zadeh's NPI number?

The NPI number for Kamyar Kalantar-zadeh is 1457314684. It was assigned to this individual provider in the NPPES registry on April 10, 2006.

Where is Kamyar Kalantar-zadeh located?

Kamyar Kalantar-zadeh practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 880-7812.

What is Kamyar Kalantar-zadeh's specialty?

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

Is Kamyar Kalantar-zadeh enrolled in Medicare?

Yes. Kamyar Kalantar-zadeh 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 Kamyar Kalantar-zadeh was last updated on February 21, 2023. 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.