KALANTAR-ZADEH, KAMYARM.D. NPI 1457314684 Clinician

Internal Medicine · ORANGE, CA

Specialty Internal Medicine — from billed Medicare claims

In practice about 35 years since medical school (class of 1991, self-reported to CMS)

Location ORANGE, CA · NPPES registered location

Active in data Billed Medicare 2020–2023 (4 consecutive years)

Scale 2 codes billed · 113 disclosed volume (CY2023 — most recent year in data)

Current groups

PROHEALTH PARTNERS, A MEDICAL GROUP — LONG BEACH, CA

Hospital affiliations

Dialysis facility — CCN 052802
Dialysis facility — CCN 552832
Dialysis facility — CCN 552883
Hospital — CCN 050376

registry affiliations from the CMS Doctors & Clinicians facility file — an administrative affiliation, not a statement about where care is delivered

Group affiliation since 2019

20192026

PROHEALTH PARTNERS, A MEDICAL GROUP

2024–2026

UC REGENTS

2019–2023

The roster archive begins in 2019, so a span starting at 2019 may reach back further. Membership spans only — no volume is attributed to any group here.

NPPES registry · CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · NPPES record last updated 2023-02

Data year CY2023 CY2022 CY2021 CY2020

No Medicare Part B procedure rows for 2024 — try another year above.