DR. MELISA W. LAI-BECKER MD
NPI 1457387920
Emergency Medicine in Boston, MA
About Dr. Melisa W. Lai-becker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MELISA W. LAI-BECKER MD (NPI 1457387920) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (213002) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Warren Alpert Medical School Of Brown University (1999).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Melisa W. Lai-becker 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.
Medicare Billing Reassignments
8Medicare enrollment records show Melisa Lai-becker reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Cambridge, MA 02139
- Reassigned Medicare billing, Massachusetts enrollment
- 719 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 clinicians in this Medicare group
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Newton Wellesley Emergency Medicine Specialist PC
- 46 clinicians in this Medicare group
Salem, MA 01970
- Reassigned Medicare billing, Massachusetts enrollment
- 994 clinicians in this Medicare group
Salem, NH 03079
- Reassigned Medicare billing, Massachusetts enrollment
- 181 clinicians in this Medicare group
Oak Bluffs, MA 02557
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1194866210 (Massachusetts)
- 184 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAMartha's Vineyard Hospital Inc
Critical Access Hospitals · Oak Bluffs, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Melisa Lai-becker's NPI number?
The NPI number for Melisa Lai-becker is 1457387920. It was assigned to this individual provider in the NPPES registry on June 24, 2006. The provider is also known as Dr. Melisa W. Lai MD.
Where is Melisa Lai-becker located?
Melisa Lai-becker practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 724-4100.
What is Melisa Lai-becker's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Melisa Lai-becker enrolled in Medicare?
Yes. Melisa Lai-becker 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.
Which organizations bill Medicare for Melisa Lai-becker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melisa Lai-becker reassigns Medicare benefits to 8 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Cambridge Public Health Commission (Cambridge, MA), Children's Hospital Pediatric Associates, Inc (Boston, MA), Newton Wellesley Emergency Medicine Specialist, P .C. (Newton, MA) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melisa Lai-becker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Melisa Lai-becker accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Melisa Lai-becker 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 Melisa Lai-becker affiliated with any hospitals?
According to CMS data, Melisa Lai-becker is affiliated with North Shore Medical Center -, Newton-Wellesley Hospital and Martha's Vineyard Hospital Inc.
When was this NPI record last updated?
The NPPES record for Melisa Lai-becker was last updated on August 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Dr. Melisa W. Lai-Becker, MD · NPI 1457387920
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 24, 2006.
## Identity
- **NPI:** 1457387920 (Entity type: Individual)
- **Enumerated:** June 24, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 213002 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2696
- **Phone:** (617) 724-4100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Cambridge Public Health Commission (NPI 1932313228, Cambridge, MA); Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA); Newton Wellesley Emergency Medicine Specialist, P .C. (NPI 1346355526, Newton, MA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Warren Alpert Medical School Of Brown University, class of 1999
## Record status
- **NPPES last updated:** August 12, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1457387920) · Data from the CMS NPPES public registry.