Sylvester Obanya Okonkwo, MD
Internal Medicine Physician · Oxon Hill, MD
Sylvester Obanya Okonkwo, MD is an internal medicine physician with a practice address in Oxon Hill, Maryland, and NPI 1801897582, issued on Aug 3, 2005. Check the license (Maryland D0055314, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Sylvester Obanya Okonkwo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0055314 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6192 Oxon Hill RD, Oxon Hill, MD 20745
- Phone
- (301) 839-0800
- Enumerated
- Aug 3, 2005
- Record last updated
- Dec 26, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (301) 839-8088
- Medicaid ID
- 113703400 MD
- Medicare enrollment
- Enrolled (PECOS I20101025000109); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 6192 Oxon Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sylvester Obanya Okonkwo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0055314Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
8,109 Medicare Part D claims for 321 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 936 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen482 claims
- Amlodipine Besylate424 claims
- Atorvastatin Calcium379 claims
- Lisinopril293 claims
- Oxycodone Hcl264 claims
- Gabapentin236 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: $169.43
4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Sylvester Obanya Okonkwo among 3,904 internal medicine physician records in Maryland
Sylvester Obanya Okonkwo, MD is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1987 · median 2003 among the 2,445 with a school on file
- Record last updated2012 · 59% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 internal 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 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Oxon Hill → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jinan Al-Naqeeb, MDOxon Hill, MD 207451225565914
- Edward Cullen, MDOxon Hill, MD 207451083775126
- Dennis Cullen, MDOxon Hill, MD 207451104988054
- Abdul Fadul, M.D.Oxon Hill, MD 207451841394954
- Rointan Farahifar, M.D.Oxon Hill, MD 207451912943531
- Manisha Jariwala, MDOxon Hill, MD 207451730174020
- Fatima Mohiuddin, M.D.Oxon Hill, MD 207451518311448
- Ethiopia Abebe, MDSuitland, MD 207461588732580
Common questions
What is Sylvester Obanya Okonkwo, MD's NPI number?
Sylvester Obanya Okonkwo, MD's National Provider Identifier (NPI) is 1801897582, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Sylvester Obanya Okonkwo, MD located?
The NPPES record lists a practice address at 6192 Oxon Hill RD, Oxon Hill, MD, 20745. Phone: (301) 839-0800. Providers update this record themselves, so call before visiting.
How can I verify Sylvester Obanya Okonkwo, MD's license?
NPPES lists Maryland license number D0055314, 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 Sylvester Obanya Okonkwo, MD prescribe under Medicare Part D?
In 2024, Sylvester Obanya Okonkwo, MD had 8,109 Medicare Part D claims for 321 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.