Annette Vannilam, MD
NPI 1275972952 · Pediatric Gastroenterology Physician · Westport, CT
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Annette Vannilam, MD is a Pediatric Gastroenterology Physician provider in Westport, CT (NPI 1275972952).
Provider details
- NPI number
- 1275972952
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4301103398 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
13 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$153 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 100 Michigan St NeGrand Rapids, MI 49503-2560Phone: (616) 391-8810
Registry dates
- Enumerated
- 2013-06-17
- Last updated
- 2024-09-04
- Certified
- 2024-09-04
Frequently asked questions
- What is Annette Vannilam's NPI number?
- Annette Vannilam's National Provider Identifier (NPI) is 1275972952, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Annette Vannilam's specialty?
- Annette Vannilam is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Annette Vannilam located?
- Annette Vannilam's practice location on file with NPPES is 191 Post Rd W, Westport, CT 06880-4625.
- What is Annette Vannilam's phone number?
- The practice phone number listed in the NPPES registry for Annette Vannilam is (860) 545-9560.
- Does Annette Vannilam accept Medicare?
- Annette Vannilam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Annette Vannilam's NPI active?
- Yes — Annette Vannilam's NPI (1275972952) is active in the NPPES registry as of the last update on 2024-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.