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DR. LEO ROBERT ZACKS M.D.
NPI 1386038578
Internal Medicine in Temecula, CA

Active since March 25, 2015PECOS EnrolledAccepts Medicare Assignment
27309 MADISON AVE, TEMECULA, CA 92590(833) 574-2273 Get Directions Write a Review

NPPES record last updated: November 22, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 22, 2021, Jun 19, 2019 (2 updates tracked since 2019).

About Dr. Leo Robert Zacks M.d. NPPES

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

DR. LEO ROBERT ZACKS M.D. (NPI 1386038578) is an individual internal medicine provider in Temecula, California, licensed in California (A154099) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Las Vegas, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1386038578
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. LEO ROBERT ZACKSCredential: M.D.
Location Address27309 MADISON AVETemecula, CA 92590-5685
Mailing Address27309 Madison AveTemecula, CA 92590-5685 · (833) 574-2273
Phone(833) 574-2273
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 25, 2015
Last NPPES UpdateNovember 22, 20212 updates tracked since enumeration
✔ NPI 1386038578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A154099
Definition
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.
27309 MADISON AVE, Temecula, CA 92590
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Secondary Practice Location 1

Location 12040 W Charleston Blvd, #300Las Vegas, NV 89102-2227 · Phone (702) 671-2358

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. Leo Robert Zacks 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 ID2961719737
PECOS Enrollment IDI20190315001019
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 92590 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.

Other Providers at the Same Location NPPES 13

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

IDA ONG PHARM.D
Pharmacist
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (866) 214-7586
DR. ROBERT RYAN TORRES CASTEN M.D.
Family Medicine
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (866) 984-7483
ODNALOR-JOSEPH ZENAROSA R.PH.
Pharmacist
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (951) 302-4049
WENDY TO MD
Pediatrics
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (833) 574-2273
MS. DIANE OH PHARMD
Pharmacist
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (951) 302-4049
DR. KENNETH A LIU MD
Pediatrics
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (951) 302-4209
ADEL MAZANDERANI M.D.
Family Medicine
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (833) 574-2273
MRS. MACYBEL VU
Pharmacist
27309 MADISON AVE
TEMECULA, CA 92590
Riverside County (951) 302-4049

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 Leo Zacks's NPI number?

The NPI number for Leo Zacks is 1386038578. It was assigned to this individual provider in the NPPES registry on March 25, 2015.

Where is Leo Zacks located?

Leo Zacks practices at 27309 Madison Ave, Temecula, CA 92590. The listed phone number is (833) 574-2273.

What is Leo Zacks's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Leo Zacks enrolled in Medicare?

Yes. Leo Zacks 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 Leo Zacks was last updated on November 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.