Martha Marcellus
NPI 1427509843 · Lactation Consultant (Registered Nurse) · Freeport, NY
Martha Marcellus is a Lactation Consultant (Registered Nurse) provider in Freeport, NY (NPI 1427509843).
Provider details
- NPI number
- 1427509843
- Entity type
- Individual
- Primary specialty
- Lactation Consultant (Registered Nurse)Nursing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 623837-1 (NY)
Specialties & taxonomies
Nursing Service Providers
Nursing Service Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-10-20
- Last updated
- 2025-03-12
- Certified
- 2025-03-12
Frequently asked questions
- What is Martha Marcellus's NPI number?
- Martha Marcellus's National Provider Identifier (NPI) is 1427509843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Marcellus's specialty?
- Martha Marcellus is listed in the NPPES registry with a primary specialty of Lactation Consultant (Registered Nurse) (Nursing Service Providers).
- Where is Martha Marcellus located?
- Martha Marcellus's practice location on file with NPPES is 134 New York Ave, Freeport, NY 11520-1538.
- What is Martha Marcellus's phone number?
- The practice phone number listed in the NPPES registry for Martha Marcellus is (646) 416-3820.
- Is Martha Marcellus's NPI active?
- Yes — Martha Marcellus's NPI (1427509843) is active in the NPPES registry as of the last update on 2025-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.