DENNIS REN MD
NPI 1659726313
Pediatrics - Pediatric Emergency Medicine in Washington, DC
About Dennis Ren Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS REN MD (NPI 1659726313) is an individual pediatric emergency medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD046999) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Washington, and is a graduate of Tulane University School Of Medicine (2016).
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
Dennis Ren 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 Dennis Ren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 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.
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.
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
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 Dennis Ren's NPI number?
The NPI number for Dennis Ren is 1659726313. It was assigned to this individual provider in the NPPES registry on May 2, 2016.
Where is Dennis Ren located?
Dennis Ren practices at 111 Michigan Ave NW, Washington, DC 20010. The listed phone number is (202) 476-5000.
What is Dennis Ren's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.
Is Dennis Ren enrolled in Medicare?
Yes. Dennis Ren 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 Dennis Ren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Ren reassigns Medicare benefits to Children's Hospital (Washington, DC). 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 Dennis Ren'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 Dennis Ren was last updated on April 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.
# Dennis Ren, MD · NPI 1659726313
Pediatric Emergency Medicine physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since May 2, 2016.
## Identity
- **NPI:** 1659726313 (Entity type: Individual)
- **Enumerated:** May 2, 2016
- **Primary specialty:** Pediatrics - Pediatric Emergency Medicine · taxonomy 2080P0204X
- **State license:** MD046999 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 MICHIGAN AVE NW, Washington, DC 20010-2916
- **Phone:** (202) 476-5000
## 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:** Children's Hospital (NPI 1780800128, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** April 23, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1659726313) · Data from the CMS NPPES public registry.