IndividualActive
Rosemary Mazanet, MD
NPI 1477988764 · Medical Oncology Physician · Cos Cob, CT
Rosemary Mazanet, MD is a Medical Oncology Physician provider in Cos Cob, CT (NPI 1477988764).
Provider details
- NPI number
- 1477988764
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 039910 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(77/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
24 Daffodil Ln
Cos Cob, CT 06807-1409
Phone: (203) 861-0077
Street-level locationGet directions
Mailing address
24 Daffodil Ln
Cos Cob, CT 06807-1409
Registry dates
- Enumerated
- 2013-09-05
- Last updated
- 2013-09-05
Frequently asked questions
- What is Rosemary Mazanet's NPI number?
- Rosemary Mazanet's National Provider Identifier (NPI) is 1477988764, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosemary Mazanet's specialty?
- Rosemary Mazanet is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Rosemary Mazanet located?
- Rosemary Mazanet's practice location on file with NPPES is 24 Daffodil Ln, Cos Cob, CT 06807-1409.
- What is Rosemary Mazanet's phone number?
- The practice phone number listed in the NPPES registry for Rosemary Mazanet is (203) 861-0077.
- Is Rosemary Mazanet's NPI active?
- Yes — Rosemary Mazanet's NPI (1477988764) is active in the NPPES registry as of the last update on 2013-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.