Carolyn Marcus
NPI 1841566841 · Pediatrics Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Marcus is a Pediatrics Physician provider in Boston, MA (NPI 1841566841).
Provider details
- NPI number
- 1841566841
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 262142 (MA)
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
14 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
- 2012-03-24
- Last updated
- 2015-03-22
Frequently asked questions
- What is Carolyn Marcus's NPI number?
- Carolyn Marcus's National Provider Identifier (NPI) is 1841566841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Marcus's specialty?
- Carolyn Marcus is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Carolyn Marcus located?
- Carolyn Marcus's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Carolyn Marcus's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Marcus is (617) 355-6369.
- Does Carolyn Marcus accept Medicare?
- Carolyn Marcus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Marcus's NPI active?
- Yes — Carolyn Marcus's NPI (1841566841) is active in the NPPES registry as of the last update on 2015-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.