Mary-Joan Marron-Corwin, M.D.
NPI 1336129949 · Neonatal-Perinatal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary-Joan Marron-Corwin, M.D. is a Neonatal-Perinatal Medicine Physician provider in New York, NY (NPI 1336129949).
Provider details
- NPI number
- 1336129949
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 174944 (NY)
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
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
- 2006-01-19
- Last updated
- 2015-02-27
Frequently asked questions
- What is Mary-Joan Marron-Corwin's NPI number?
- Mary-Joan Marron-Corwin's National Provider Identifier (NPI) is 1336129949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary-Joan Marron-Corwin's specialty?
- Mary-Joan Marron-Corwin is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary-Joan Marron-Corwin located?
- Mary-Joan Marron-Corwin's practice location on file with NPPES is 506 Lenox Ave, New York, NY 10037-1802.
- What is Mary-Joan Marron-Corwin's phone number?
- The practice phone number listed in the NPPES registry for Mary-Joan Marron-Corwin is (212) 939-8457.
- Does Mary-Joan Marron-Corwin accept Medicare?
- Mary-Joan Marron-Corwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary-Joan Marron-Corwin's NPI active?
- Yes — Mary-Joan Marron-Corwin's NPI (1336129949) is active in the NPPES registry as of the last update on 2015-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.