Olusegun Oyewole, M.D; MPH
Internal Medicine Physician · Lancaster, PA
Olusegun Oyewole, M.D; MPH is an internal medicine physician with a practice address in Lancaster, Pennsylvania, and NPI 1609280296, issued on Jun 11, 2014. Check the license (Pennsylvania MD461291, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Olusegun Oyewole
- Credential
- M.D; MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD461291 PA
Self-reported in NPPES; status is on the state search - Practice location
- 555 North Duke Street, Lancaster, PA 17602
- Phone
- (717) 544-8144
- Enumerated
- Jun 11, 2014
- Record last updated
- Nov 23, 2022
- Fax
- (717) 544-8140
- Medicare enrollment
- Enrolled (PECOS I20170727002870); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 555 North Duke Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Olusegun Oyewole in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD461291Check 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
27 Medicare Part D claims for 14 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.
2 hospitals and group practices
- Lancaster General HospitalLancaster, PA · Acute Care Hospitals5 of 5 stars
- Tower Health Medical GroupWest Reading, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Olusegun Oyewole among 7,300 internal medicine physician records in Pennsylvania
Olusegun Oyewole, M.D; MPH is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 60% of them.
- NPI issued2014 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2005 · median 2008 among the 4,208 with a school on file
- Record last updated2022 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
91 internal medicine physician records list a practice address in Lancaster
They are 91 of the 5,378 NPPES records with a practice address in Lancaster, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Lancaster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nancy Adamopoulos, MDLancaster, PA 176021003896283
- Christopher Addis, M.D.Lancaster, PA 176021649269150
- Philip Billoni, MDLancaster, PA 176021255320222
- Hyasmine Charles, MDLancaster, PA 176021922059526
- Vinesh Dedhia, MDLancaster, PA 176021487747614
- John Derderian, DOLancaster, PA 176021477595445
- Michelle Jordan, DOLancaster, PA 176021700815214
- Otto Lauter, M.D.Lancaster, PA 176021174512230
Common questions
What is Olusegun Oyewole, M.D; MPH's NPI number?
Olusegun Oyewole, M.D; MPH's National Provider Identifier (NPI) is 1609280296, issued on Jun 11, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Olusegun Oyewole, M.D; MPH located?
The NPPES record lists a practice address at 555 North Duke Street, Lancaster, PA, 17602. Phone: (717) 544-8144. Providers update this record themselves, so call before visiting.
How can I verify Olusegun Oyewole, M.D; MPH's license?
NPPES lists Pennsylvania license number MD461291, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Olusegun Oyewole, M.D; MPH prescribe under Medicare Part D?
In 2024, Olusegun Oyewole, M.D; MPH had 27 Medicare Part D claims for 14 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.