OLUWASEUN A ADENIYI MD
NPI 1154906097
Internal Medicine in Lewes, DE
About Oluwaseun A Adeniyi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OLUWASEUN A ADENIYI MD (NPI 1154906097) is an individual internal medicine provider in Lewes, Delaware, licensed in Delaware (C1-0027460) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Lewes, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Oluwaseun A Adeniyi Md 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.
Medicare Billing Reassignment
Medicare enrollment records show Oluwaseun Adeniyi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lewes, DE 19958
- Reassigned Medicare billing, Delaware enrollment
- 382 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19958 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Oluwaseun Adeniyi's NPI number?
The NPI number for Oluwaseun Adeniyi is 1154906097. It was assigned to this individual provider in the NPPES registry on March 12, 2021.
Where is Oluwaseun Adeniyi located?
Oluwaseun Adeniyi practices at 424 Savannah Rd, Lewes, DE 19958. The listed phone number is (302) 645-3525.
What is Oluwaseun Adeniyi's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Oluwaseun Adeniyi enrolled in Medicare?
Yes. Oluwaseun Adeniyi 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.
Which organization bills Medicare for Oluwaseun Adeniyi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Oluwaseun Adeniyi reassigns Medicare benefits to Beebe Physician Network, Inc. (Lewes, DE). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Oluwaseun Adeniyi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Oluwaseun Adeniyi accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Oluwaseun Adeniyi 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.
When was this NPI record last updated?
The NPPES record for Oluwaseun Adeniyi was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Oluwaseun A Adeniyi, MD · NPI 1154906097
Internal Medicine physician in Lewes, Delaware. Individual provider, active in the CMS NPPES registry since March 12, 2021.
## Identity
- **NPI:** 1154906097 (Entity type: Individual)
- **Enumerated:** March 12, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** C1-0027460 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** 424 SAVANNAH RD, Lewes, DE 19958-1462
- **Phone:** (302) 645-3525 · **Fax:** (302) 645-3513
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Beebe Physician Network, Inc. (NPI 1730133992, Lewes, DE), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1154906097) · Data from the CMS NPPES public registry.