Samuel Ong, MD
Internal Medicine Physician · Lakewood, CA
Samuel Ong, MD is an internal medicine physician with a practice address in Lakewood, California, and NPI 1356373310, issued on Jul 7, 2006. Check the license (California G77749, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Ong
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G77749 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3700 South St, Lakewood, CA 90712
- Phone
- (562) 602-6800
- Enumerated
- Jul 7, 2006
- Record last updated
- Sep 11, 2025
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3700 South St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Samuel Ong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
40 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Samuel Ong among 17,696 internal medicine physician records in California
Samuel Ong, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Lakewood
They are 23 of the 1,204 NPPES records with a practice address in Lakewood, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Lakewood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Prasad Chode, MDLakewood, CA 907121194720847
- Michael Freund, M.D.Lakewood, CA 907121447244157
- Cherie Garcia, MDLakewood, CA 907121497786396
- Olga Ginzburg, MDLakewood, CA 907121891723482
- Scott Gordon, MDLakewood, CA 907121033140801
- Daisy Guevara, MDLakewood, CA 907121396740932
- Aaron Kern, MDLakewood, CA 907121891726725
- Jesse Licuanan, M.D.Lakewood, CA 907121396795514
Common questions
What is Samuel Ong, MD's NPI number?
Samuel Ong, MD's National Provider Identifier (NPI) is 1356373310, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Ong, MD located?
The NPPES record lists a practice address at 3700 South St, Lakewood, CA, 90712. Phone: (562) 602-6800. Providers update this record themselves, so call before visiting.
How can I verify Samuel Ong, MD's license?
NPPES lists California license number G77749, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Samuel Ong, MD prescribe under Medicare Part D?
In 2024, Samuel Ong, MD had 40 Medicare Part D claims for 31 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.