Stephen Ong, MD
Family Medicine Physician · Oxon Hill, MD
Stephen Ong, MD is a family medicine physician with a practice address in Oxon Hill, Maryland, and NPI 1851479281, issued on Nov 2, 2006. Check the license (Maryland D014760, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Stephen Ong
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- D014760 MD
MD6423 DC
Self-reported in NPPES; status is on the state search - Practice location
- 6357 Oxon Hill RD, Oxon Hill, MD 20745
- Phone
- (301) 839-2700
- Enumerated
- Nov 2, 2006
- Record last updated
- May 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (301) 839-1354
- Medicare enrollment
- Enrolled (PECOS I20101209000576); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Also registered at 6357 Oxon Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Garrett, PA-CMedical Physician Assistant1063431880
- Stephanie Meller, M. D.Family Medicine Physician1275941163
- Ghazala ShahSurgery Physician1972682862
- Mohammed Youshauddin, M.D., FASNNephrology Physician1396951802
Verify Stephen Ong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D014760Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average family medicine physician in 2024
2,489 Medicare Part D claims for 192 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Amlodipine Besylate167 claims
- Atorvastatin Calcium136 claims
- Allopurinol115 claims
- Levothyroxine Sodium114 claims
- Glimepiride87 claims
- Simvastatin84 claims
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.
Industry payments in 2024: $2,290.77
42 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Greater Washington Medicenter LLC. T/A Healthcare OF Greater WashingtoOxon Hill, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Ong among 1,912 family medicine physician records in Maryland
Stephen Ong, MD is one of 1,912 family medicine physician records with a practice address in Maryland. 73% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1970 · median 2004 among the 1,141 with a school on file
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family medicine physician records list a practice address in Oxon Hill
They are 8 of the 425 NPPES records with a practice address in Oxon Hill, and 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Oxon Hill → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richa Bhatnagar, MDOxon Hill, MD 207451528261906
- Lakshmi Marella, MDOxon Hill, MD 207451801184759
- Stephanie Meller, M. D.Oxon Hill, MD 207451275941163
- Jafar NazemianOxon Hill, MD 207451003987629
- Uchechi Opaigbeogu, M.D.Oxon Hill, MD 207451033215371
- Priya Ponnaiyan, MDOxon Hill, MD 207451922568096
- Sudha Sikri, MDOxon Hill, MD 207451194804070
- Sijuwola Ajinwun, MDCamp Springs, MD 207461629383492
Common questions
What is Stephen Ong, MD's NPI number?
Stephen Ong, MD's National Provider Identifier (NPI) is 1851479281, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Ong, MD located?
The NPPES record lists a practice address at 6357 Oxon Hill RD, Oxon Hill, MD, 20745. Phone: (301) 839-2700. Providers update this record themselves, so call before visiting.
How can I verify Stephen Ong, MD's license?
NPPES lists Maryland license number D014760, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Ong, MD prescribe under Medicare Part D?
In 2024, Stephen Ong, MD had 2,489 Medicare Part D claims for 192 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.