ALEXANDER NATHAN KLONOFF M.D.
NPI 1538629936
Internal Medicine in Los Angeles, CA
About Alexander Nathan Klonoff M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER NATHAN KLONOFF M.D. (NPI 1538629936) is an individual internal medicine provider in Los Angeles, California, licensed in California (A177588) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in West Hollywood, and is a graduate of University Of Southern California Keck School Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Secondary Practice Location 1
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
Alexander Nathan Klonoff 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90089 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
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 Alexander Klonoff's NPI number?
The NPI number for Alexander Klonoff is 1538629936. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is Alexander Klonoff located?
Alexander Klonoff practices at 1200 N State St Clinic Tower, Suite A7d, Los Angeles, CA 90089. The listed phone number is (323) 409-7556.
What is Alexander Klonoff's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexander Klonoff enrolled in Medicare?
Yes. Alexander Klonoff 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 Alexander Klonoff was last updated on April 9, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
