Julie Marx, M.D.
NPI 1255545760 · Pediatrics Physician · Washington, DC
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Marx, M.D. is a Pediatrics Physician provider in Washington, DC (NPI 1255545760).
Provider details
- NPI number
- 1255545760
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 242251 (NY)
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2007-05-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Julie Marx's NPI number?
- Julie Marx's National Provider Identifier (NPI) is 1255545760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Marx's specialty?
- Julie Marx is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Julie Marx located?
- Julie Marx's practice location on file with NPPES is 111 Michigan Ave Nw, Washington, DC 20010-2978.
- What is Julie Marx's phone number?
- The practice phone number listed in the NPPES registry for Julie Marx is (202) 884-3730.
- Does Julie Marx accept Medicare?
- Julie Marx is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Marx's NPI active?
- Yes — Julie Marx's NPI (1255545760) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.