DR. LEONARD TSUNG-WEI ONG M.D.
NPI 1376854281
Radiology - Diagnostic Radiology in Santa Monica, CA

Q: What is Leonard Ong's NPI number?

The NPI number for Leonard Ong is 1376854281. It was assigned to this individual provider in the NPPES registry on June 24, 2010.

Q: What is Leonard Ong's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Leonard Ong was last updated on March 25, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since June 24, 2010PECOS EnrolledAccepts Medicare Assignment

85.71/100

CMS Quality Rating

2428 SANTA MONICA BLVD, SANTA MONICA, CA 90404(310) 315-1000 Get Directions Write a Review

NPPES record last updated: March 25, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 25, 2026, Oct 9, 2023, Nov 29, 2022 and 1 more (4 updates tracked since 2019).

On this page

About Dr. Leonard Tsung-wei Ong M.d. NPPES

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

DR. LEONARD TSUNG-WEI ONG M.D. (NPI 1376854281) is an individual diagnostic radiology provider in Santa Monica, California, licensed in New York (271674) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1376854281

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. LEONARD TSUNG-WEI ONGCredential: M.D.

Location Address2428 SANTA MONICA BLVDSanta Monica, CA 90404-2045

Mailing AddressPo Box 232410San Diego, CA 92193-2410

Phone(310) 315-1000

Sole ProprietorNo

Medical School CMSOtherGraduated 2010

Enumeration DateJune 24, 2010

Last NPPES UpdateMarch 25, 20264 updates tracked since enumeration

NPPES CertifiedMarch 25, 2026

✔ NPI 1376854281 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in NY · 271674✔ Licensed in NC · 2023-02351✔ Licensed in CA · A122632✔ Licensed in IL · 036.178907

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Also ListedRadiology · Body ImagingTaxonomy 2085B0100X · License A122632 (CA)

2428 SANTA MONICA BLVD, Santa Monica, CA 90404

Open in Google Maps ↗

Secondary Practice Locations 3

Location 13815 Highland AveDowners Grove, IL 60515-1500 · Phone (708) 304-9400 · Fax (630) 275-5890

Location 22460 Curtis Ellis DrRocky Mount, NC 27804-2237 · Phone (252) 962-8186 · Fax (252) 962-3563

Location 3200 W Arbor DrSan Diego, CA 92103-9000 · Phone (800) 926-8273

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of NC, Blue Cross Blue Shield of Arizona, CareSource.Insurance ›

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. Leonard Tsung-wei Ong 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 ID8325374200

PECOS Enrollment IDI20190730004158, I20260126000619, I20260303002613

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.

Areas of Expertise CMS Part B claims 57

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.

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

474 services420 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

313 services306 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

311 services302 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

207 services205 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

154 services153 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

116 services114 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

87 services87 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

72 services72 patients

X-ray of chest, 2 views 71046

71 services71 patients

Ct scan of chest without contrast 71250

62 services60 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

61 services61 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

52 services52 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

51 services51 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

47 services47 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

44 services44 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

37 services36 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

35 services35 patients

X-ray of abdomen, 1 view 74018

34 services33 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

34 services34 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

33 services33 patients

Ct scan of abdomen and pelvis with contrast 74177

31 services31 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

29 services29 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

28 services28 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

28 services28 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

26 services23 patients

Limited ultrasound scan of abdomen 76705

26 services26 patients

Complete ultrasound scan behind abdominal cavity 76770

24 services24 patients

Nuclear medicine study of bone and/or joint whole body 78306

A nuclear medicine study of bone and/or joint whole body involves injecting a small amount of radioactive material into your body. This material travels to your bones and emits energy. A special camera captures this energy, creating images of your bones to help identify any abnormalities.

23 services23 patients

Mri scan of pelvis before and after contrast 72197

An MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.

22 services22 patients

X-ray of hip, 2-3 views 73502

21 services21 patients

Nuclear medicine study whole body with ct scan 78816

A Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.

21 services18 patients

Dxa bone density measurement of hip, pelvis, spine 77080

20 services20 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

19 services19 patients

Ct scan of chest with contrast 71260

19 services19 patients

X-ray of shoulder, minimum of 2 views 73030

19 services19 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

19 services17 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

18 services17 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

18 services18 patients

Ct scan of abdomen and pelvis without contrast 74176

18 services18 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

18 services18 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

17 services17 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

16 services16 patients

X-ray of knee, 3 views 73562

16 services15 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

16 services16 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

16 services16 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

15 services15 patients

X-ray of foot, minimum of 3 views 73630

15 services15 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

15 services15 patients

Low dose ct scan of chest for lung cancer screening 71271

14 services14 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

14 services12 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

14 services13 patients

Ct scan of abdomen and pelvis before and after contrast 74178

14 services14 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

14 services14 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

14 services14 patients

X-ray of lower and sacral spine, 2-3 views 72100

13 services13 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

13 services13 patients

Complete ultrasound scan of abdomen 76700

11 services11 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The Queens Medical Center

Acute Care Hospitals · Honolulu, HI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number120001

Location1301 Punchbowl StHonolulu, HI 96813 · Honolulu County

Emergency services Birthing friendly

Novant Health Forsyth Medical Center

Acute Care Hospitals · Winston-Salem, NC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number340014

Location3333 Silas Creek ParkwayWinston-Salem, NC 27103 · Forsyth County

Emergency services Birthing friendly

Unc Health Nash

Acute Care Hospitals · Rocky Mount, NC

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number340147

Location2460 Curtis Ellis DriveRocky Mount, NC 27804 · Nash County

Emergency services Birthing friendly

Marietta Memorial Hospital

Acute Care Hospitals · Marietta, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number360147

Location401 Matthew StreetMarietta, OH 45750 · Washington County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90404 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.71/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

85.67

Promoting Interoperability

100

Improvement Activities

Cost

61.47

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.

H. BABAALI, M.D. MEDICAL INC.

General Acute Care Hospital

2428 SANTA MONICA BLVD, STE 402
SANTA MONICA, CA 90404

Los Angeles County (310) 829-3385

DAVID YOUSSEFI DMD INC

Dentist

2428 SANTA MONICA BLVD, STE 403
SANTA MONICA, CA 90404

Los Angeles County (310) 696-6996

PARISA SERRI L.AC.

Acupuncturist

2428 SANTA MONICA BLVD, SUITE 404
SANTA MONICA, CA 90404

Los Angeles County (310) 453-8393

WESTSIDE PROFESSIONAL MANAGEMENT INC.

Clinic/Center (Radiology)

2428 SANTA MONICA BLVD, STE. LL
SANTA MONICA, CA 90404

Los Angeles County (310) 315-1000

DR. JAMES LAWRENCE SKYDELL M.D.

Surgery (Vascular Surgery)

2428 SANTA MONICA BLVD, SUITE L.L.
SANTA MONICA, CA 90404

Los Angeles County (310) 315-0212

JOHN MICHAEL USZLER M.D.

Radiology (Diagnostic Radiology)

2428 SANTA MONICA BLVD, 302
SANTA MONICA, CA 90404

Los Angeles County (310) 264-0080

DR. SUZAN K. VIGIL D.D.S.

Dentist

2428 SANTA MONICA BLVD, #102
SANTA MONICA, CA 90404

Los Angeles County (310) 315-1142

LINDSAY NOELLE WHITEHEAD DC

Chiropractor

2428 SANTA MONICA BLVD, SUITE 404
SANTA MONICA, CA 90404

Los Angeles County (310) 453-8393

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 Leonard Ong's NPI number?

The NPI number for Leonard Ong is 1376854281. It was assigned to this individual provider in the NPPES registry on June 24, 2010.

Where is Leonard Ong located?

Leonard Ong practices at 2428 Santa Monica Blvd, Santa Monica, CA 90404. The listed phone number is (310) 315-1000.

What is Leonard Ong's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Leonard Ong enrolled in Medicare?

Yes. Leonard Ong 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.

What insurance does Leonard Ong accept?

Health plans from Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of NC and CareSource list Leonard Ong as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Leonard Ong affiliated with any hospitals?

According to CMS data, Leonard Ong is affiliated with The Queens Medical Center, Novant Health Forsyth Medical Center, Unc Health Nash and Marietta Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Leonard Ong was last updated on March 25, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.