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DR. STANLEY LEONG
NPI 1043322936
Internal Medicine in El Monte, CA

Active since August 31, 2006PECOS Enrolled
10953 RAMONA BLVD, EL MONTE, CA 91731(626) 579-8463 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Stanley Leong NPPES

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

DR. STANLEY LEONG (NPI 1043322936) is an individual internal medicine provider in El Monte, California, licensed in California (A40231) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043322936
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. STANLEY LEONG
Location Address10953 RAMONA BLVDEl Monte, CA 91731-2629
Mailing Address10953 Ramona BlvdEl Monte, CA 91731-2629 · (626) 579-8463
Phone(626) 579-8463
Sole ProprietorNo
Enumeration DateAugust 31, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1043322936 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 · A40231
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.
10953 RAMONA BLVD, El Monte, CA 91731
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Other Identifiers 3

Medicare ID-Type UnspecifiedW809FCA · El Monte
Medicare ID-Type UnspecifiedW932CA · Health Center
Medicare UPINA40231CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stanley Leong is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 91731 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.

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.

DR. HENEDINA LIBAN
Pediatrics
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 579-8463
MISS CARMEN NOEMI SANTOS RN
Registered Nurse
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 434-2500
SONIA ALEMAN RN
Registered Nurse
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 434-2973
IFUNANYA OZIOMA OPARAH
Registered Nurse (Ambulatory Care)
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 434-2883
JAY NGUYEN RN
Registered Nurse (Ambulatory Care)
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 434-2873
GLORIA MARIA AGUILAR REGISTER NURSE
Registered Nurse (Ambulatory Care)
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 434-2826
COUNTY OF LOS ANGELES
Clinic/Center
10953 RAMONA BLVD, RM#: 1293, 1295A, 1160
EL MONTE, CA 91731
Los Angeles County (626) 434-2500
TERESA CEDENO CASILLAS LVN
Licensed Vocational Nurse
10953 RAMONA BLVD
EL MONTE, CA 91731
Los Angeles County (626) 434-2521

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 Stanley Leong's NPI number?

The NPI number for Stanley Leong is 1043322936. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Stanley Leong located?

Stanley Leong practices at 10953 Ramona Blvd, El Monte, CA 91731. The listed phone number is (626) 579-8463.

What is Stanley Leong's specialty?

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

Is Stanley Leong enrolled in Medicare?

Yes. Stanley Leong is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Stanley Leong was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.