TENDAI MICHAEL MARUME MD
NPI 1912695180
Internal Medicine in Newark, DE
About Tendai Michael Marume Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TENDAI MICHAEL MARUME MD (NPI 1912695180) is an individual internal medicine provider in Newark, Delaware, licensed in Delaware (C1-0029148) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, maintains a secondary practice location in Philadelphia, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Tendai Michael Marume 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 Reassignments
2Medicare enrollment records show Tendai Marume reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newark, DE 19713
- Reassigned Medicare billing, Delaware enrollment
- 460 clinicians in this Medicare group
Elkton, MD 21921
- Reassigned Medicare billing, Maryland enrollment
- 512 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19718 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.
NEWARK, DE 19718
NEWARK, DE 19718
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 Tendai Marume's NPI number?
The NPI number for Tendai Marume is 1912695180. It was assigned to this individual provider in the NPPES registry on April 26, 2023.
Where is Tendai Marume located?
Tendai Marume practices at 4755 Ogletown Stanton Rd Ste 5a43, Newark, DE 19718. The listed phone number is (302) 623-0188.
What is Tendai Marume's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Tendai Marume enrolled in Medicare?
Yes. Tendai Marume 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 organizations bill Medicare for Tendai Marume's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tendai Marume reassigns Medicare benefits to 2 organizations: Christiana Care Health Services Inc (Newark, DE) and Union Hospital Of Cecil County, Inc. (Elkton, MD). Each 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 Tendai Marume's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Tendai Marume was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Tendai Michael Marume, MD · NPI 1912695180
Internal Medicine physician in Newark, Delaware. Individual provider, active in the CMS NPPES registry since April 26, 2023.
## Identity
- **NPI:** 1912695180 (Entity type: Individual)
- **Enumerated:** April 26, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** C1-0029148 (Delaware)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4755 OGLETOWN STANTON RD STE 5A43, Newark, DE 19718-2200
- **Phone:** (302) 623-0188 · **Fax:** (302) 733-5640
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Christiana Care Health Services Inc (NPI 1245474329, Newark, DE); Union Hospital Of Cecil County, Inc. (NPI 1407607450, Elkton, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1912695180) · Data from the CMS NPPES public registry.