Dennis Ren, MD
NPI 1659726313 · Pediatric Emergency Medicine (Pediatrics) Physician · Washington, DC
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Ren, MD is a Pediatric Emergency Medicine (Pediatrics) Physician provider in Washington, DC (NPI 1659726313).
Provider details
- NPI number
- 1659726313
- Entity type
- Individual
- Primary specialty
- Pediatric Emergency Medicine (Pediatrics) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD046999 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 111 Michigan Ave NwWashington, DC 20010-2916Phone: (202) 476-3670Fax: (202) 476-4741
Registry dates
- Enumerated
- 2016-05-02
- Last updated
- 2019-04-23
Frequently asked questions
- What is Dennis Ren's NPI number?
- Dennis Ren's National Provider Identifier (NPI) is 1659726313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Ren's specialty?
- Dennis Ren is listed in the NPPES registry with a primary specialty of Pediatric Emergency Medicine (Pediatrics) Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Ren located?
- Dennis Ren's practice location on file with NPPES is 111 Michigan Ave Nw, Washington, DC 20010-2916.
- What is Dennis Ren's phone number?
- The practice phone number listed in the NPPES registry for Dennis Ren is (202) 476-5000.
- Does Dennis Ren accept Medicare?
- Dennis Ren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Ren's NPI active?
- Yes — Dennis Ren's NPI (1659726313) is active in the NPPES registry as of the last update on 2019-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.