Mary Iwaszewski, DO
NPI 1245487966 · Neonatal-Perinatal Medicine Physician · Greenville, NC
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Iwaszewski, DO is a Neonatal-Perinatal Medicine Physician provider in Greenville, NC (NPI 1245487966).
Provider details
- NPI number
- 1245487966
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 5901 E 7th StLong Beach, CA 90822-5201Phone: (818) 482-1262
Registry dates
- Enumerated
- 2008-08-25
- Last updated
- 2025-04-28
- Certified
- 2025-04-28
Frequently asked questions
- What is Mary Iwaszewski's NPI number?
- Mary Iwaszewski's National Provider Identifier (NPI) is 1245487966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Iwaszewski's specialty?
- Mary Iwaszewski is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Iwaszewski located?
- Mary Iwaszewski's practice location on file with NPPES is 2100 Stantonsburg Rd, Greenville, NC 27834-2818.
- What is Mary Iwaszewski's phone number?
- The practice phone number listed in the NPPES registry for Mary Iwaszewski is (818) 482-1262.
- Does Mary Iwaszewski accept Medicare?
- Mary Iwaszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Iwaszewski's NPI active?
- Yes — Mary Iwaszewski's NPI (1245487966) is active in the NPPES registry as of the last update on 2025-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.