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DR. SAMUEL ONG MD
NPI 1356373310
Internal Medicine in Lakewood, CA

Active since July 07, 2006PECOS Enrolled
3700 SOUTH ST, LAKEWOOD, CA 90712(562) 602-6800 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Samuel Ong Md NPPES

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

DR. SAMUEL ONG MD (NPI 1356373310) is an individual internal medicine provider in Lakewood, California, licensed in California (G77749) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356373310
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. SAMUEL ONGCredential: MD
Location Address3700 SOUTH STLakewood, CA 90712-1419
Mailing Address150 Ocean Park Blvd, #430Santa Monica, CA 90405-3572 · (310) 396-2603
Phone(562) 602-6800
Sole ProprietorNo
Enumeration DateJuly 7, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1356373310 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G77749
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.
Also ListedEmergency MedicineTaxonomy 207P00000X · License G77749 (CA)
3700 SOUTH ST, Lakewood, CA 90712
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Samuel Ong Md 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Samuel Ong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pacific Coast Emergency Medical Associates, Inc
4.4 mi
Emergency Medicine
2776 PACIFIC AVE
Long Beach, CA 90806
  • Reassigned Medicare billing, California enrollment
  • 56 clinicians in this Medicare group
NPI 1316179492 (310) 321-0143
Orange County Emergency Medical Associates, Inc.
6.4 mi
Emergency Medicine
7901 WALKER ST
La Palma, CA 90623
  • Reassigned Medicare billing, California enrollment
  • 62 clinicians in this Medicare group
NPI 1508114711 (310) 379-2134

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
68 services65 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
59 services58 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
35 services35 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
24 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90712 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.

THOMAS NGUYEN
Pharmacist
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 602-6806
OMRAN GDARA MD
Emergency Medicine
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 272-6588
KRISTIN LYN BAGIU LM, RN, NP-C
Nurse Practitioner
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 531-2550
MARVIN FIELDS M.D.
Radiology (Diagnostic Radiology)
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 531-2550
DR. STEVE JAMES ZIELINSKI D.O.
Emergency Medicine
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 602-6800
CEP AMERICA-CALIFORNIA
Emergency Medicine
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 531-2550
DR. NORMAN BRUCE JETTON MD
Emergency Medicine
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 602-6800
DR. MONICA D SERNA MD
Emergency Medicine
3700 SOUTH ST
LAKEWOOD, CA 90712
Los Angeles County (562) 602-6800

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 Samuel Ong's NPI number?

The NPI number for Samuel Ong is 1356373310. It was assigned to this individual provider in the NPPES registry on July 7, 2006.

Where is Samuel Ong located?

Samuel Ong practices at 3700 South St, Lakewood, CA 90712. The listed phone number is (562) 602-6800.

What is Samuel Ong's specialty?

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

Is Samuel Ong enrolled in Medicare?

Yes. Samuel Ong is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Samuel Ong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Samuel Ong reassigns Medicare benefits to 2 organizations: Pacific Coast Emergency Medical Associates, Inc (Long Beach, CA) and Orange County Emergency Medical Associates, Inc. (La Palma, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Samuel Ong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Samuel Ong was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.