Lauren Stewart, MD
NPI 1235725599 · Maternal & Fetal Medicine Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lauren Stewart, MD is a Maternal & Fetal Medicine Physician provider in Stony Brook, NY (NPI 1235725599).
Provider details
- NPI number
- 1235725599
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2020-12-21
- Last updated
- 2025-08-20
- Certified
- 2025-08-20
Frequently asked questions
- What is Lauren Stewart's NPI number?
- Lauren Stewart's National Provider Identifier (NPI) is 1235725599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Stewart's specialty?
- Lauren Stewart is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lauren Stewart located?
- Lauren Stewart's practice location on file with NPPES is 101 Nicolls Rd, Stony Brook, NY 11794-5704.
- What is Lauren Stewart's phone number?
- The practice phone number listed in the NPPES registry for Lauren Stewart is (631) 689-8333.
- Does Lauren Stewart accept Medicare?
- Lauren Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lauren Stewart's NPI active?
- Yes — Lauren Stewart's NPI (1235725599) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.