Eric Mazur, M.D.
NPI 1881664886 · Hematology (Internal Medicine) Physician · Norwalk, CT
Eric Mazur, M.D. is a Hematology (Internal Medicine) Physician provider in Norwalk, CT (NPI 1881664886).
Provider details
- NPI number
- 1881664886
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 021096 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-01-24
- Last updated
- 2015-11-09
Frequently asked questions
- What is Eric Mazur's NPI number?
- Eric Mazur's National Provider Identifier (NPI) is 1881664886, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Mazur's specialty?
- Eric Mazur is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Mazur located?
- Eric Mazur's practice location on file with NPPES is 24 Stevens St, Norwalk, CT 06850-3852.
- What is Eric Mazur's phone number?
- The practice phone number listed in the NPPES registry for Eric Mazur is (203) 852-2368.
- Is Eric Mazur's NPI active?
- Yes — Eric Mazur's NPI (1881664886) is active in the NPPES registry as of the last update on 2015-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.