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Pediatric Medicine

Lawrence T. Siew, MD

Sees patients in New Haven, CT · Connecticut

Summary

Lawrence T. Siew, MD (Pediatric Medicine) is enrolled with Medicare at 1 practice location in New Haven, CT. NPI 1891933727. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(203) 785‑2020 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Lawrence T. Siew, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
Pediatric MedicinePrimary specialty
YesAccepts Medicare assignment
21Years since medical school (graduated 2005)
Rutgers New Jersey Medical SchoolMedical school
MaleGender (as listed)
Yale UniversityGroup practice

Quick answers

Where does Lawrence T. Siew see patients?
Medicare's clinician data lists 1 practice location in New Haven, CT. Call before your visit to confirm the address.
What is Lawrence T. Siew's specialty?
Medicare lists Pediatric Medicine as the primary specialty, and also Emergency Medicine.
Does Lawrence T. Siew accept Medicare assignment?
Yes. Medicare's clinician data says Lawrence T. Siew accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Lawrence T. Siew?
(203) 785-2020, as listed in official Medicare / NPI Registry data.
What is Lawrence T. Siew's NPI number?
1891933727. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Lawrence T. Siew is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Lawrence T. Siew as a member of this group (CMS data updated 2026-10-02).

  • Yale University2,645 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in Connecticut →

Other pediatricians in New Haven

Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.

All pediatricians in New Haven →

Clinician information

CredentialMD
Medical schoolRutgers New Jersey Medical School
Graduation year2005
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891933727
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians