DR. STEPHEN W LOUIE MD
NPI 1700879350
Internal Medicine - Hematology in Boston, MA
About Dr. Stephen W Louie Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN W LOUIE MD (NPI 1700879350) is an individual hematology provider in Boston, Massachusetts, licensed in Massachusetts (39656) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Tufts Medical Center, and is a graduate of Other (1966).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Stephen W Louie Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tufts Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02111 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Stephen Louie's NPI number?
The NPI number for Stephen Louie is 1700879350. It was assigned to this individual provider in the NPPES registry on August 30, 2005.
Where is Stephen Louie located?
Stephen Louie practices at 228 Harrison Ave, Boston, MA 02111. The listed phone number is (617) 423-5511.
What is Stephen Louie's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is Stephen Louie enrolled in Medicare?
Yes. Stephen Louie is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Stephen Louie accept?
Health plans from Anthem Blue Cross and Blue Shield list Stephen Louie as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Stephen Louie affiliated with any hospitals?
According to CMS data, Stephen Louie is affiliated with Tufts Medical Center.
When was this NPI record last updated?
The NPPES record for Stephen Louie was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.