Karen Mazie, M.D.
NPI 1275670135 · Pediatrics Physician · Washington, DC
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Mazie, M.D. is a Pediatrics Physician provider in Washington, DC (NPI 1275670135).
Provider details
- NPI number
- 1275670135
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD035145 (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
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
- 2007-01-31
- Last updated
- 2011-11-30
Frequently asked questions
- What is Karen Mazie's NPI number?
- Karen Mazie's National Provider Identifier (NPI) is 1275670135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Mazie's specialty?
- Karen Mazie is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Mazie located?
- Karen Mazie's practice location on file with NPPES is 3912 Georgia Ave Nw, Washington, DC 20011-5861.
- What is Karen Mazie's phone number?
- The practice phone number listed in the NPPES registry for Karen Mazie is (202) 420-7131.
- Does Karen Mazie accept Medicare?
- Karen Mazie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Mazie's NPI active?
- Yes — Karen Mazie's NPI (1275670135) is active in the NPPES registry as of the last update on 2011-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.